An NADPH-dependent enzyme that catalyzes the conversion of L-ARGININE and OXYGEN to produce CITRULLINE and NITRIC OXIDE.
A CALCIUM-independent subtype of nitric oxide synthase that may play a role in immune function. It is an inducible enzyme whose expression is transcriptionally regulated by a variety of CYTOKINES.
Binary compounds of oxygen containing the anion O(2-). The anion combines with metals to form alkaline oxides and non-metals to form acidic oxides.
A CALCIUM-dependent, constitutively-expressed form of nitric oxide synthase found primarily in ENDOTHELIAL CELLS.
A CALCIUM-dependent, constitutively-expressed form of nitric oxide synthase found primarily in NERVE TISSUE.
Inorganic oxides that contain nitrogen.
A mild astringent and topical protectant with some antiseptic action. It is also used in bandages, pastes, ointments, dental cements, and as a sunblock.
A non-selective inhibitor of nitric oxide synthase. It has been used experimentally to induce hypertension.
Salts of nitrous acid or compounds containing the group NO2-. The inorganic nitrites of the type MNO2 (where M=metal) are all insoluble, except the alkali nitrites. The organic nitrites may be isomeric, but not identical with the corresponding nitro compounds. (Grant & Hackh's Chemical Dictionary, 5th ed)
An essential amino acid that is physiologically active in the L-form.
A competitive inhibitor of nitric oxide synthetase.
Compounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction.
Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical.
A class of enzymes that catalyze oxidation-reduction reactions of amino acids.
A sulfur-containing alkyl thionitrite that is one of the NITRIC OXIDE DONORS.
Guanosine cyclic 3',5'-(hydrogen phosphate). A guanine nucleotide containing one phosphate group which is esterified to the sugar moiety in both the 3'- and 5'-positions. It is a cellular regulatory agent and has been described as a second messenger. Its levels increase in response to a variety of hormones, including acetylcholine, insulin, and oxytocin and it has been found to activate specific protein kinases. (From Merck Index, 11th ed)
A powerful vasodilator used in emergencies to lower blood pressure or to improve cardiac function. It is also an indicator for free sulfhydryl groups in proteins.
3-Mercapto-D-valine. The most characteristic degradation product of the penicillin antibiotics. It is used as an antirheumatic and as a chelating agent in Wilson's disease.
Single pavement layer of cells which line the luminal surface of the entire vascular system and regulate the transport of macromolecules and blood components.
Iron (II,III) oxide (Fe3O4). It is a black ore of IRON that forms opaque crystals and exerts strong magnetism.
Magnesium oxide (MgO). An inorganic compound that occurs in nature as the mineral periclase. In aqueous media combines quickly with water to form magnesium hydroxide. It is used as an antacid and mild laxative and has many nonmedicinal uses.
The physiological widening of BLOOD VESSELS by relaxing the underlying VASCULAR SMOOTH MUSCLE.
A morpholinyl sydnone imine ethyl ester, having a nitrogen in place of the keto oxygen. It acts as NITRIC OXIDE DONORS and is a vasodilator that has been used in ANGINA PECTORIS.
A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company.
An enzyme that catalyzes the conversion of GTP to 3',5'-cyclic GMP and pyrophosphate. It also acts on ITP and dGTP. (From Enzyme Nomenclature, 1992) EC
Inorganic or organic compounds containing trivalent iron.
A sulfur-containing alkyl thionitrite that is one of the NITRIC OXIDE DONORS.
Drugs used to cause dilation of the blood vessels.
An oxide of aluminum, occurring in nature as various minerals such as bauxite, corundum, etc. It is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of dental cements and refractories.
Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.
A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain.
The relationship between the dose of an administered drug and the response of the organism to the drug.
A group of organic sulfur-containing nitrites, alkyl thionitrites. S-Nitrosothiols include compounds such as S-NITROSO-N-ACETYLPENICILLAMINE and S-NITROSOGLUTATHIONE.
The isotopic compound of hydrogen of mass 2 (deuterium) with oxygen. (From Grant & Hackh's Chemical Dictionary, 5th ed) It is used to study mechanisms and rates of chemical or nuclear reactions, as well as biological processes.
A natural product that has been considered as a growth factor for some insects.
Synthesized magnetic particles under 100 nanometers possessing many biomedical applications including DRUG DELIVERY SYSTEMS and CONTRAST AGENTS. The particles are usually coated with a variety of polymeric compounds.
Lipid-containing polysaccharides which are endotoxins and important group-specific antigens. They are often derived from the cell wall of gram-negative bacteria and induce immunoglobulin secretion. The lipopolysaccharide molecule consists of three parts: LIPID A, core polysaccharide, and O-specific chains (O ANTIGENS). When derived from Escherichia coli, lipopolysaccharides serve as polyclonal B-cell mitogens commonly used in laboratory immunology. (From Dorland, 28th ed)
A flavoprotein that reversibly oxidizes NADPH to NADP and a reduced acceptor. EC
An increase in the rate of synthesis of an enzyme due to the presence of an inducer which acts to derepress the gene responsible for enzyme synthesis.
A potent oxidant synthesized by the cell during its normal metabolism. Peroxynitrite is formed from the reaction of two free radicals, NITRIC OXIDE and the superoxide anion (SUPEROXIDES).
A potent mutagen and carcinogen. It is a reduction product of 4-NITROQUINOLINE-1-OXIDE. It binds with nucleic acids and inactivates both bacteria and bacteriophage.
Highly reactive compounds produced when oxygen is reduced by a single electron. In biological systems, they may be generated during the normal catalytic function of a number of enzymes and during the oxidation of hemoglobin to METHEMOGLOBIN. In living organisms, SUPEROXIDE DISMUTASE protects the cell from the deleterious effects of superoxides.
The act of BREATHING out.
The relatively long-lived phagocytic cell of mammalian tissues that are derived from blood MONOCYTES. Main types are PERITONEAL MACROPHAGES; ALVEOLAR MACROPHAGES; HISTIOCYTES; KUPFFER CELLS of the liver; and OSTEOCLASTS. They may further differentiate within chronic inflammatory lesions to EPITHELIOID CELLS or may fuse to form FOREIGN BODY GIANT CELLS or LANGHANS GIANT CELLS. (from The Dictionary of Cell Biology, Lackie and Dow, 3rd ed.)
A neurotransmitter found at neuromuscular junctions, autonomic ganglia, parasympathetic effector junctions, a subset of sympathetic effector junctions, and at many sites in the central nervous system.
Substances that influence the course of a chemical reaction by ready combination with free radicals. Among other effects, this combining activity protects pancreatic islets against damage by cytokines and prevents myocardial and pulmonary perfusion injuries.
Any tests done on exhaled air.
A family of iminourea derivatives. The parent compound has been isolated from mushrooms, corn germ, rice hulls, mussels, earthworms, and turnip juice. Derivatives may have antiviral and antifungal properties.
RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm.
The administration of drugs by the respiratory route. It includes insufflation into the respiratory tract.
A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471).
An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration.
Elements of limited time intervals, contributing to particular results or situations.
Gases or volatile liquids that vary in the rate at which they induce anesthesia; potency; the degree of circulation, respiratory, or neuromuscular depression they produce; and analgesic effects. Inhalation anesthetics have advantages over intravenous agents in that the depth of anesthesia can be changed rapidly by altering the inhaled concentration. Because of their rapid elimination, any postoperative respiratory depression is of relatively short duration. (From AMA Drug Evaluations Annual, 1994, p173)
The physiological narrowing of BLOOD VESSELS by contraction of the VASCULAR SMOOTH MUSCLE.
A disturbance in the prooxidant-antioxidant balance in favor of the former, leading to potential damage. Indicators of oxidative stress include damaged DNA bases, protein oxidation products, and lipid peroxidation products (Sies, Oxidative Stress, 1991, pxv-xvi).
The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway.
The main trunk of the systemic arteries.
Compounds with three contiguous nitrogen atoms in linear format, H2N-N=NH, and hydrocarbyl derivatives.
That phase of a muscle twitch during which a muscle returns to a resting position.
A ureahydrolase that catalyzes the hydrolysis of arginine or canavanine to yield L-ornithine (ORNITHINE) and urea. Deficiency of this enzyme causes HYPERARGININEMIA. EC
An allotropic form of carbon that is used in pencils, as a lubricant, and in matches and explosives. It is obtained by mining and its dust can cause lung irritation.
The nonstriated involuntary muscle tissue of blood vessels.
The flow of BLOOD through or around an organ or region of the body.
Strains of mice in which certain GENES of their GENOMES have been disrupted, or "knocked-out". To produce knockouts, using RECOMBINANT DNA technology, the normal DNA sequence of the gene being studied is altered to prevent synthesis of a normal gene product. Cloned cells in which this DNA alteration is successful are then injected into mouse EMBRYOS to produce chimeric mice. The chimeric mice are then bred to yield a strain in which all the cells of the mouse contain the disrupted gene. Knockout mice are used as EXPERIMENTAL ANIMAL MODELS for diseases (DISEASE MODELS, ANIMAL) and to clarify the functions of the genes.
Organic compounds that include a cyclic ether with three ring atoms in their structure. They are commonly used as precursors for POLYMERS such as EPOXY RESINS.
Molecules or ions formed by the incomplete one-electron reduction of oxygen. These reactive oxygen intermediates include SINGLET OXYGEN; SUPEROXIDES; PEROXIDES; HYDROXYL RADICAL; and HYPOCHLOROUS ACID. They contribute to the microbicidal activity of PHAGOCYTES, regulation of signal transduction and gene expression, and the oxidative damage to NUCLEIC ACIDS; PROTEINS; and LIPIDS.
Naturally occurring or experimentally induced animal diseases with pathological processes sufficiently similar to those of human diseases. They are used as study models for human diseases.
Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action in enzyme synthesis.
Anesthesia caused by the breathing of anesthetic gases or vapors or by insufflating anesthetic gases or vapors into the respiratory tract.
The major interferon produced by mitogenically or antigenically stimulated LYMPHOCYTES. It is structurally different from TYPE I INTERFERON and its major activity is immunoregulation. It has been implicated in the expression of CLASS II HISTOCOMPATIBILITY ANTIGENS in cells that do not normally produce them, leading to AUTOIMMUNE DISEASES.
Identification of proteins or peptides that have been electrophoretically separated by blot transferring from the electrophoresis gel to strips of nitrocellulose paper, followed by labeling with antibody probes.
Highly specialized EPITHELIAL CELLS that line the HEART; BLOOD VESSELS; and lymph vessels, forming the ENDOTHELIUM. They are polygonal in shape and joined together by TIGHT JUNCTIONS. The tight junctions allow for variable permeability to specific macromolecules that are transported across the endothelial layer.
Serum glycoprotein produced by activated MACROPHAGES and other mammalian MONONUCLEAR LEUKOCYTES. It has necrotizing activity against tumor cell lines and increases ability to reject tumor transplants. Also known as TNF-alpha, it is only 30% homologous to TNF-beta (LYMPHOTOXIN), but they share TNF RECEPTORS.
The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.
An oxidoreductase that catalyzes the reaction between superoxide anions and hydrogen to yield molecular oxygen and hydrogen peroxide. The enzyme protects the cell against dangerous levels of superoxide. EC
A nonapeptide messenger that is enzymatically produced from KALLIDIN in the blood where it is a potent but short-lived agent of arteriolar dilation and increased capillary permeability. Bradykinin is also released from MAST CELLS during asthma attacks, from gut walls as a gastrointestinal vasodilator, from damaged tissues as a pain signal, and may be a neurotransmitter.
Histochemical localization of immunoreactive substances using labeled antibodies as reagents.
Established cell cultures that have the potential to propagate indefinitely.
A non-steroidal anti-inflammatory agent (NSAID) that inhibits the enzyme cyclooxygenase necessary for the formation of prostaglandins and other autacoids. It also inhibits the motility of polymorphonuclear leukocytes.
Nitrogenous products of NITRIC OXIDE synthases, ranging from NITRIC OXIDE to NITRATES. These reactive nitrogen intermediates also include the inorganic PEROXYNITROUS ACID and the organic S-NITROSOTHIOLS.
The force that opposes the flow of BLOOD through a vascular bed. It is equal to the difference in BLOOD PRESSURE across the vascular bed divided by the CARDIAC OUTPUT.
The portion of the descending aorta proceeding from the arch of the aorta and extending to the DIAPHRAGM, eventually connecting to the ABDOMINAL AORTA.
Quinolines substituted in any position by one or more nitro groups.
The smallest divisions of the arteries located between the muscular arteries and the capillaries.
The process of altering the morphology and functional activity of macrophages so that they become avidly phagocytic. It is initiated by lymphokines, such as the macrophage activation factor (MAF) and the macrophage migration-inhibitory factor (MMIF), immune complexes, C3b, and various peptides, polysaccharides, and immunologic adjuvants.
Conversion of an inactive form of an enzyme to one possessing metabolic activity. It includes 1, activation by ions (activators); 2, activation by cofactors (coenzymes); and 3, conversion of an enzyme precursor (proenzyme or zymogen) to an active enzyme.
Heterocyclic compounds in which an oxygen is attached to a cyclic nitrogen.
Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.
Compounds or agents that combine with cyclooxygenase (PROSTAGLANDIN-ENDOPEROXIDE SYNTHASES) and thereby prevent its substrate-enzyme combination with arachidonic acid and the formation of eicosanoids, prostaglandins, and thromboxanes.
The species Oryctolagus cuniculus, in the family Leporidae, order LAGOMORPHA. Rabbits are born in burrows, furless, and with eyes and ears closed. In contrast with HARES, rabbits have 22 chromosome pairs.
Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.
A soluble factor produced by MONOCYTES; MACROPHAGES, and other cells which activates T-lymphocytes and potentiates their response to mitogens or antigens. Interleukin-1 is a general term refers to either of the two distinct proteins, INTERLEUKIN-1ALPHA and INTERLEUKIN-1BETA. The biological effects of IL-1 include the ability to replace macrophage requirements for T-cell activation.
An element of the rare earth family of metals. It has the atomic symbol Ce, atomic number 58, and atomic weight 140.12. Cerium is a malleable metal used in industrial applications.
Mononuclear phagocytes derived from bone marrow precursors but resident in the peritoneum.
Inorganic chemicals that contain manganese as an integral part of the molecule.
Nanoparticles produced from metals whose uses include biosensors, optics, and catalysts. In biomedical applications the particles frequently involve the noble metals, especially gold and silver.
Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).
Structurally related forms of an enzyme. Each isoenzyme has the same mechanism and classification, but differs in its chemical, physical, or immunological characteristics.
The circulation of the BLOOD through the MICROVASCULAR NETWORK.
Inorganic compounds that contain tin as an integral part of the molecule.
Nanometer-sized particles that are nanoscale in three dimensions. They include nanocrystaline materials; NANOCAPSULES; METAL NANOPARTICLES; DENDRIMERS, and QUANTUM DOTS. The uses of nanoparticles include DRUG DELIVERY SYSTEMS and cancer targeting and imaging.
Compounds having the nitro group, -NO2, attached to carbon. When attached to nitrogen they are nitramines and attached to oxygen they are NITRATES.
A tripeptide with many roles in cells. It conjugates to drugs to make them more soluble for excretion, is a cofactor for some enzymes, is involved in protein disulfide bond rearrangement and reduces peroxides.
A strong oxidizing agent used in aqueous solution as a ripening agent, bleach, and topical anti-infective. It is relatively unstable and solutions deteriorate over time unless stabilized by the addition of acetanilide or similar organic materials.
The circulation of the BLOOD through the LUNGS.
A technique applicable to the wide variety of substances which exhibit paramagnetism because of the magnetic moments of unpaired electrons. The spectra are useful for detection and identification, for determination of electron structure, for study of interactions between molecules, and for measurement of nuclear spins and moments. (From McGraw-Hill Encyclopedia of Science and Technology, 7th edition) Electron nuclear double resonance (ENDOR) spectroscopy is a variant of the technique which can give enhanced resolution. Electron spin resonance analysis can now be used in vivo, including imaging applications such as MAGNETIC RESONANCE IMAGING.
Relatively complete absence of oxygen in one or more tissues.
An inducibly-expressed subtype of prostaglandin-endoperoxide synthase. It plays an important role in many cellular processes and INFLAMMATION. It is the target of COX2 INHIBITORS.
A stable, non-explosive inhalation anesthetic, relatively free from significant side effects.
Enzyme complexes that catalyze the formation of PROSTAGLANDINS from the appropriate unsaturated FATTY ACIDS, molecular OXYGEN, and a reduced acceptor.
The rate dynamics in chemical or physical systems.
Carbon monoxide (CO). A poisonous colorless, odorless, tasteless gas. It combines with hemoglobin to form carboxyhemoglobin, which has no oxygen carrying capacity. The resultant oxygen deprivation causes headache, dizziness, decreased pulse and respiratory rates, unconsciousness, and death. (From Merck Index, 11th ed)
A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.
A non-essential amino acid. In animals it is synthesized from PHENYLALANINE. It is also the precursor of EPINEPHRINE; THYROID HORMONES; and melanin.
Body organ that filters blood for the secretion of URINE and that regulates ion concentrations.
The oxygen-carrying proteins of ERYTHROCYTES. They are found in all vertebrates and some invertebrates. The number of globin subunits in the hemoglobin quaternary structure differs between species. Structures range from monomeric to a variety of multimeric arrangements.
A group of glucose polymers made by certain bacteria. Dextrans are used therapeutically as plasma volume expanders and anticoagulants. They are also commonly used in biological experimentation and in industry for a wide variety of purposes.
Compounds containing 1,3-diazole, a five membered aromatic ring containing two nitrogen atoms separated by one of the carbons. Chemically reduced ones include IMIDAZOLINES and IMIDAZOLIDINES. Distinguish from 1,2-diazole (PYRAZOLES).
The short wide vessel arising from the conus arteriosus of the right ventricle and conveying unaerated blood to the lungs.
Inorganic compounds that contain chromium as an integral part of the molecule.
An alpha-1 adrenergic agonist used as a mydriatic, nasal decongestant, and cardiotonic agent.
Non-antibody proteins secreted by inflammatory leukocytes and some non-leukocytic cells, that act as intercellular mediators. They differ from classical hormones in that they are produced by a number of tissue or cell types rather than by specialized glands. They generally act locally in a paracrine or autocrine rather than endocrine manner.
A 21-amino acid peptide produced in a variety of tissues including endothelial and vascular smooth-muscle cells, neurons and astrocytes in the central nervous system, and endometrial cells. It acts as a modulator of vasomotor tone, cell proliferation, and hormone production. (N Eng J Med 1995;333(6):356-63)
The circulation of the BLOOD through the vessels of the KIDNEY.
Nitric acid (HNO3). A colorless liquid that is used in the manufacture of inorganic and organic nitrates and nitro compounds for fertilizers, dye intermediates, explosives, and many different organic chemicals. Continued exposure to vapor may cause chronic bronchitis; chemical pneumonitis may occur. (From Merck Index, 11th ed)
A basic element found in nearly all organized tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes.
The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow.
The veins and arteries of the HEART.
Ubiquitous, inducible, nuclear transcriptional activator that binds to enhancer elements in many different cell types and is activated by pathogenic stimuli. The NF-kappa B complex is a heterodimer composed of two DNA-binding subunits: NF-kappa B1 and relA.
One of the mechanisms by which CELL DEATH occurs (compare with NECROSIS and AUTOPHAGOCYTOSIS). Apoptosis is the mechanism responsible for the physiological deletion of cells and appears to be intrinsically programmed. It is characterized by distinctive morphologic changes in the nucleus and cytoplasm, chromatin cleavage at regularly spaced sites, and the endonucleolytic cleavage of genomic DNA; (DNA FRAGMENTATION); at internucleosomal sites. This mode of cell death serves as a balance to mitosis in regulating the size of animal tissues and in mediating pathologic processes associated with tumor growth.
The class of all enzymes catalyzing oxidoreduction reactions. The substrate that is oxidized is regarded as a hydrogen donor. The systematic name is based on donor:acceptor oxidoreductase. The recommended name will be dehydrogenase, wherever this is possible; as an alternative, reductase can be used. Oxidase is only used in cases where O2 is the acceptor. (Enzyme Nomenclature, 1992, p9)
Endogenously-synthesized compounds that influence biological processes not otherwise classified under ENZYMES; HORMONES or HORMONE ANTAGONISTS.
The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability.
The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)
A group of compounds derived from unsaturated 20-carbon fatty acids, primarily arachidonic acid, via the cyclooxygenase pathway. They are extremely potent mediators of a diverse group of physiological processes.
The neural systems which act on VASCULAR SMOOTH MUSCLE to control blood vessel diameter. The major neural control is through the sympathetic nervous system.
Nerve cells where transmission is mediated by NITRIC OXIDE.
Highly reactive molecules with an unsatisfied electron valence pair. Free radicals are produced in both normal and pathological processes. They are proven or suspected agents of tissue damage in a wide variety of circumstances including radiation, damage from environment chemicals, and aging. Natural and pharmacological prevention of free radical damage is being actively investigated.
A compound formed by the combination of hemoglobin and oxygen. It is a complex in which the oxygen is bound directly to the iron without causing a change from the ferrous to the ferric state.
(GTP cyclohydrolase I) or GTP 7,8-8,9-dihydrolase (pyrophosphate-forming) (GTP cyclohydrolase II). An enzyme group that hydrolyzes the imidazole ring of GTP, releasing carbon-8 as formate. Two C-N bonds are hydrolyzed and the pentase unit is isomerized. This is the first step in the synthesis of folic acid from GTP. EC (GTP cyclohydrolase I) and EC (GTP cyclohydrolase II).
A group of enzymes that oxidize diverse nitrogenous substances to yield nitrite. (Enzyme Nomenclature, 1992) EC 1.
A variation of the PCR technique in which cDNA is made from RNA via reverse transcription. The resultant cDNA is then amplified using standard PCR protocols.
A pathological process characterized by injury or destruction of tissues caused by a variety of cytologic and chemical reactions. It is usually manifested by typical signs of pain, heat, redness, swelling, and loss of function.
Inorganic or organic compounds that contain arsenic.
Arteries which arise from the abdominal aorta and distribute to most of the intestines.
The vessels carrying blood away from the heart.
A photographic fixative used also in the manufacture of resins. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), this substance may reasonably be anticipated to be a carcinogen (Merck Index, 9th ed). Many of its derivatives are ANTITHYROID AGENTS and/or FREE RADICAL SCAVENGERS.
A syndrome of persistent PULMONARY HYPERTENSION in the newborn infant (INFANT, NEWBORN) without demonstrable HEART DISEASES. This neonatal condition can be caused by severe pulmonary vasoconstriction (reactive type), hypertrophy of pulmonary arterial muscle (hypertrophic type), or abnormally developed pulmonary arterioles (hypoplastic type). The newborn patient exhibits CYANOSIS and ACIDOSIS due to the persistence of fetal circulatory pattern of right-to-left shunting of blood through a patent ductus arteriosus (DUCTUS ARTERIOSUS, PATENT) and at times a patent foramen ovale (FORAMEN OVALE, PATENT).
Part of the arm in humans and primates extending from the ELBOW to the WRIST.
Concentrated pharmaceutical preparations of plants obtained by removing active constituents with a suitable solvent, which is evaporated away, and adjusting the residue to a prescribed standard.
Electron-accepting molecules in chemical reactions in which electrons are transferred from one molecule to another (OXIDATION-REDUCTION).
Substances that reduce or suppress INFLAMMATION.
The color-furnishing portion of hemoglobin. It is found free in tissues and as the prosthetic group in many hemeproteins.
The action of a drug that may affect the activity, metabolism, or toxicity of another drug.
The presence of an increased amount of blood in a body part or an organ leading to congestion or engorgement of blood vessels. Hyperemia can be due to increase of blood flow into the area (active or arterial), or due to obstruction of outflow of blood from the area (passive or venous).
A positive regulatory effect on physiological processes at the molecular, cellular, or systemic level. At the molecular level, the major regulatory sites include membrane receptors, genes (GENE EXPRESSION REGULATION), mRNAs (RNA, MESSENGER), and proteins.
The number of times the HEART VENTRICLES contract per unit of time, usually per minute.
The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.
Derivatives and polymers of styrene. They are used in the manufacturing of synthetic rubber, plastics, and resins. Some of the polymers form the skeletal structures for ion exchange resin beads.
The most common and most biologically active of the mammalian prostaglandins. It exhibits most biological activities characteristic of prostaglandins and has been used extensively as an oxytocic agent. The compound also displays a protective effect on the intestinal mucosa.
The vapor state of matter; nonelastic fluids in which the molecules are in free movement and their mean positions far apart. Gases tend to expand indefinitely, to diffuse and mix readily with other gases, to have definite relations of volume, temperature, and pressure, and to condense or liquefy at low temperatures or under sufficient pressure. (Grant & Hackh's Chemical Dictionary, 5th ed)
A technique for detecting short-lived reactive FREE RADICALS in biological systems by providing a nitrone or nitrose compound for an addition reaction to occur which produces an ELECTRON SPIN RESONANCE SPECTROSCOPY-detectable aminoxyl radical. In spin trapping, the compound trapping the radical is called the spin trap and the addition product of the radical is identified as the spin adduct. (Free Rad Res Comm 1990;9(3-6):163)
The destroying of all forms of life, especially microorganisms, by heat, chemical, or other means.
The introduction of a phosphoryl group into a compound through the formation of an ester bond between the compound and a phosphorus moiety.
The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM.
Derivatives of BENZOIC ACID. Included under this heading are a broad variety of acid forms, salts, esters, and amides that contain the carboxybenzene structure.
Inorganic oxides of sulfur.
Relating to the size of solids.
A metallic element with atomic symbol Fe, atomic number 26, and atomic weight 55.85. It is an essential constituent of HEMOGLOBINS; CYTOCHROMES; and IRON-BINDING PROTEINS. It plays a role in cellular redox reactions and in the transport of OXYGEN.
A biogenic polyamine formed from spermidine. It is found in a wide variety of organisms and tissues and is an essential growth factor in some bacteria. It is found as a polycation at all pH values. Spermine is associated with nucleic acids, particularly in viruses, and is thought to stabilize the helical structure.
Apparatus for removing exhaled or leaked anesthetic gases or other volatile agents, thus reducing the exposure of operating room personnel to such agents, as well as preventing the buildup of potentially explosive mixtures in operating rooms or laboratories.
A nonflammable, halogenated, hydrocarbon anesthetic that provides relatively rapid induction with little or no excitement. Analgesia may not be adequate. NITROUS OXIDE is often given concomitantly. Because halothane may not produce sufficient muscle relaxation, supplemental neuromuscular blocking agents may be required. (From AMA Drug Evaluations Annual, 1994, p178)
The rate at which oxygen is used by a tissue; microliters of oxygen STPD used per milligram of tissue per hour; the rate at which oxygen enters the blood from alveolar gas, equal in the steady state to the consumption of oxygen by tissue metabolism throughout the body. (Stedman, 25th ed, p346)
The phenotypic manifestation of a gene or genes by the processes of GENETIC TRANSCRIPTION and GENETIC TRANSLATION.
Any of the tubular vessels conveying the blood (arteries, arterioles, capillaries, venules, and veins).
A flavoprotein enzyme that catalyzes the univalent reduction of OXYGEN using NADPH as an electron donor to create SUPEROXIDE ANION. The enzyme is dependent on a variety of CYTOCHROMES. Defects in the production of superoxide ions by enzymes such as NADPH oxidase result in GRANULOMATOUS DISEASE, CHRONIC.
Proteins that contain an iron-porphyrin, or heme, prosthetic group resembling that of hemoglobin. (From Lehninger, Principles of Biochemistry, 1982, p480)
A dark-gray, metallic element of widespread distribution but occurring in small amounts; atomic number, 22; atomic weight, 47.90; symbol, Ti; specific gravity, 4.5; used for fixation of fractures. (Dorland, 28th ed)
An iron-molybdenum flavoprotein containing FLAVIN-ADENINE DINUCLEOTIDE that oxidizes hypoxanthine, some other purines and pterins, and aldehydes. Deficiency of the enzyme, an autosomal recessive trait, causes xanthinuria.
Compounds containing the -SH radical.
A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances.
A group of compounds that contain the general formula R-OCH3.
Compounds which inhibit or antagonize the biosynthesis or actions of phosphodiesterases.
A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments.
An amino acid produced in the urea cycle by the splitting off of urea from arginine.
Adverse functional, metabolic, or structural changes in ischemic tissues resulting from the restoration of blood flow to the tissue (REPERFUSION), including swelling; HEMORRHAGE; NECROSIS; and damage from FREE RADICALS. The most common instance is MYOCARDIAL REPERFUSION INJURY.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
A cyclic nucleotide phosphodiesterase subfamily that is highly specific for CYCLIC GMP. It is found predominantly in vascular tissue and plays an important role in regulating VASCULAR SMOOTH MUSCLE contraction.
Proteins prepared by recombinant DNA technology.
Nitrogen oxides (NOx) - Nitrogen oxides, particularly nitrogen dioxide, are expelled from high temperature combustion, and are ... Radon is a colorless, odorless, naturally occurring, radioactive noble gas that is formed from the decay of radium. It is ... Sulfur oxides (SOx) - particularly sulfur dioxide, a chemical compound with the formula SO2. SO2 is produced by volcanoes and ... Carbon monoxide (CO) - CO is a colorless, odorless, toxic gas. It is a product of combustion of fuel such as natural gas, coal ...
The mineral is made up of 4 oxides. Most of this mineral is made up of an Antimony oxide, Calcium, and a sulfur oxide. Some of ... The mineral peretaite has transparent crystals that are colorless. It has a vitreous luster and perfect {100} cleavage. The ...
... is a rare tantalum oxide mineral with formula: Ta2O5. Tantite forms transparent microscopic colorless triclinic - ... Chemical analyses show minor inclusion (1.3%) of niobium oxide. It was first described in 1983 for an occurrence in a pegmatite ...
... is produced from ethylene (ethene), via the intermediate ethylene oxide. Ethylene oxide reacts with water to ... It is an odorless, colorless, sweet-tasting, viscous liquid. ... In the OMEGA process, the ethylene oxide is first converted ... In 1937, Carbide started up the first plant based on Lefort's process for vapor-phase oxidation of ethylene to ethylene oxide. ... The carbon dioxide comes in part from the ethylene oxide production, where a part of the ethylene is completely oxidized. ...
This colorless species has an interesting structural chemistry, existing in several forms. The material is sensitive to ... moisture, hydrolyzing to hydrated aluminum oxides/hydroxides. This can begin when the sulfide is exposed to the atmosphere. The ...
Microbial respiration can cause both the oxidation of Mn2+ to the oxides, and it can cause reduction of the oxides to the ... and colorless hydroquinone to tea-colored quinone polymers). Manganese has no satisfactory substitute in its major applications ... Manganese(IV) oxide was used in the original type of dry cell battery as an electron acceptor from zinc, and is the blackish ... Manganese(IV) oxide (manganese dioxide, MnO2) is used as a reagent in organic chemistry for the oxidation of benzylic alcohols ...
Both are obtained by doping cobalt(II) oxide into colorless host oxides. Doping Co(II) into Mg(II) and Zn(II) sites of Mg2TiO4 ... oxide into zinc oxide. Sven Rinman, a Swedish chemist, discovered this compound in 1780. Zinc oxide-derived pigments have been ... It is rarely used because it is a weak chromophore and relatively expensive compared to chromium(III) oxide. The structure and ...
This colorless gas is structurally similar to isobutylene. It is used as a comonomer in the production of modified ... It is oxidized by sodium hypochlorite to hexafluoroisobutylene oxide. As expected, it is a potent dienophile. ... and hexafluoroisobutylene oxide (HFIBO)". Journal of Fluorine Chemistry. 156: 345-362. doi:10.1016/j.jfluchem.2013.07.015.. ...
... and have amphoteric or weakly acidic oxides. Typical nonmetals have a dull, coloured or colourless appearance; are brittle when ... Less well known of the oxides of hydrogen is the trioxide, H2O3. Berthelot proposed the existence of this oxide in 1880 but his ... Tellurium forms an oxide sulfate Te2O3(SO)4. Less common: Polonium forms a sulfate Po(SO4)2. It has been suggested that the ... DMM), a volatile colourless liquid, has been described as a 15. It is so dangerous that scientists have been encouraged to use ...
... oxide is probably colourless and it has been suggested that its yellow hue is due to osmium dioxide (OsO2) impurities. The ... The permissible exposure limit for osmium(VIII) oxide (8 hour time-weighted average) is 2 µg/m3. Osmium(VIII) oxide can ... Osmium(VIII) oxide is also used as a stain for lipids in optical microscopy. OsO4 also stains the human cornea (see safety ... The compound is colourless, but most samples appear yellow. This is most likely due to the presence of the impurity OsO2, which ...
Main article: Nitrogen oxide. Nitrogen dioxide at −196 °C, 0 °C, 23 °C, 35 °C, and 50 °C. NO. 2 converts to colourless ... They are readily reduced to nitrous oxide and nitric oxide by sulfur dioxide, to hyponitrous acid with tin(II), and to ammonia ... Nitrogen forms nine molecular oxides, some of which were the first gases to be identified: N2O (nitrous oxide), NO (nitric ... colorless gas, liquid or solid. Standard atomic weight. .mw-parser-output .nobold{font-weight:normal}. Ar, std(N). [14.00643, ...
This colorless liquid is used for preparing hydrophobic coatings and self-assembled monolayers. It is sensitive toward water, ... It places a C18H39SiO3 "cap" on oxide surfaces. The formation of OTMS monolayers is used for converting hydrophilic surfaces to ...
This colorless solid is one of the most frequently encountered compounds of selenium. Solid SeO2 is a one-dimensional polymer, ... Each Se atom is pyramidal and bears a terminal oxide group. The bridging Se-O bond lengths are 179 pm and the terminal Se-O ... SeO2 is considered an acidic oxide: it dissolves in water to form selenous acid. Often the terms selenous acid and selenium ... It is used in small quantities to counteract the colour due to iron impurities and so to create (apparently) colourless glass. ...
Most black obsidians contain nanoinclusions of magnetite, an iron oxide. Very few samples of obsidian are nearly colorless. In ...
Silver nitrate, colorless. *Silver oxide, brown-black. *Silver sulfide, black. Silver(II) compounds. Silver(II) compounds are ... It is used in the silver oxide battery. They are also used in photographic film. They can also be used to reduce odors in ... Silver compounds can be brown, black, yellow, gray, or colorless. Silver compounds are disinfectants. ...
It is a colorless solid that dissolves in some organic solvents but hydrolyzes readily. It is used to prepare films of tantalum ... Tantalum(V) oxide films have a variety of applications including as optical films with refractive indices as high as 2.039 and ... Although these reactions are complex, the formation of a tantalum(V) oxide film by hydrolysis can be described by this ... As in the case of niobium(V) ethoxide, the ethoxide precursor thermally decomposes to produce the oxide layer with the ...
It is colorless to white with occasional shades or tints of yellow and red. It has a Mohs hardness of 2.5 to 3 and a specific ... It is dimorphous with the isometric antimony oxide senarmontite. Valentinite is a mineral named in the middle of the 19th ... Valentinite is an antimony oxide mineral with formula Sb2O3. Valentinite crystallizes in the orthorhombic system and typically ...
This colorless liquid is a lachrymatory agent and a precursor to other organic compounds. Bromoacetone is naturally present ( ... Bromoacetone is available commercially, sometimes stabilized with magnesium oxide. It was first described in the 19th century, ...
It is a colorless liquid that dissolves in some organic solvents but hydrolyzes readily. It is mainly used for the sol-gel ... Diethyl ether, C2H5OC2H5, and niobium(V) oxide are the decomposition products released following an atomic layer deposition or ... CS1 maint: discouraged parameter (link) Rahtu, Antti (2002). Atomic Layer Deposition of High Permittivity Oxides: Film Growth ... 10 NaCl The most important reaction of niobium alkoxides is their hydrolysis to produce films and gels of niobium oxides. ...
Laughing gas, or nitrous oxide, is a colorless, non-flammable gas. Laughing gas may also refer to: Laughing Gas (novel), a 1936 ...
... is a hydrous tungsten oxide mineral with formula □2W2O6(H2O). Hydrokenoelsmoreite is a colorless to white, ...
It is a colorless liquid. It is a cyclic tertiary amine. It is used as a base catalyst for generation of polyurethanes and ... It is the precursor to N-methylmorpholine N-oxide, a commercially important oxidant. David Evans Research Group Archived 2012- ...
2O) forms yellow-orange hexagonal crystals,[35] and is the only oxide of the anti-CdCl. 2 type.[36] It vaporizes at 250 °C (482 ... Salts of Cs+ are usually colourless unless the anion itself is coloured. Many of the simple salts are hygroscopic, but less so ... The phosphate,[27] acetate, carbonate, halides, oxide, nitrate, and sulfate salts are water-soluble. Double salts are often ... 2O). The aluminium sulfate component is converted to insoluble aluminium oxide by roasting the alum with carbon, and the ...
A colorless liquid, it is not soluble in water, but miscible with fats and oils. It is chiral, occurring naturally both as the ... Pyrolysis over ferric oxide induces rearrangement, giving p-cymene. Carene is used in the perfume industry and as a chemical ...
... is a calcium aluminium oxide mineral with formula CaAl4O7. It is a colorless to white vitreous mineral which ...
... s of pure calcium carbonate or calcium sulfate are translucent and colorless. The presence of iron oxide or copper ... The presence of manganese oxide can create darker colors such as black or dark brown. Speleothems can also be brown due to the ...
The formula can be written as the oxide formulation, Na2O.5B2O3.10H2O. Sometimes called sodium pentaborate pentahydrate it ... contains the pentaborate anion, (B5O6(OH)4)−. Sborgite is colorless with monoclinic crystals. It was named for Umberto Sborgi ...
Phosphorus(V) oxide is a colorless solid. It has a strong odor. It dissolves in water to produce phosphoric acid. It can ... Phosphorus(V) oxide, also known as phosphorus pentoxide, is a chemical compound. Its chemical formula is P4O10. It contains ... Phosphorus(V) oxide is corrosive. Its vapors are toxic and burn the eyes and skin. It also irritates skin and eyes. ... phosphorus and oxide ions. It contains phosphorus in its +5 oxidation state. ...
Curium oxide Macintyre, Jane E. (1992). Dictionary of Inorganic Compounds. CRC Press. p. 3046. ISBN 978-0-412-30120-9. ... Curium hydroxide is anhydrous colorless or light yellow amorphous gelatinous solid that is insoluble to water. Due to self- ...
For example ethylene oxide polymerizes to give polyethylene glycol, also known as polyethylene oxide. The reaction of an ... In general, low molecular weight epoxides are colourless and nonpolar, and often volatile. A compound containing the epoxide ... Benzene oxide exists in equilibrium with the oxepin isomer. Ethylene oxide is widely used to generate detergents and ... Simple epoxides are often referred to as oxides. Thus, the epoxide of ethylene (C2H4) is ethylene oxide (C2H4O). Many compounds ...
LNG is odorless, colorless, non-toxic and non-corrosive. Hazards include flammability after vaporization into a gaseous state, ... Nitrous oxide (kg/m3) Diesel production 138 10.9 0.004 Diesel combustion 2663 0.133 0.4 ...
colorless gas அடர்த்தி 1.379 g/l, gas (25 °C) உருகுநிலை கொதிநிலை −87.7 °C (−125.9 °F; 185.5 K) ...
They form various types of oxides, such as simple oxides (containing the O2− ion), peroxides (containing the O2−. 2 ion, where ... x ions.[133] They may be obtained directly from the elements in liquid ammonia or when air is not present, and are colourless, ... Lithium burns in air to form lithium oxide, but sodium reacts with oxygen to form a mixture of sodium oxide and sodium peroxide ... They react with amphoteric oxides: for example, the oxides of aluminium, zinc, tin, and lead react with the alkali metal ...
"Ethylene Oxide Sterilization , Disinfection & Sterilization Guidelines , Guidelines Library , Infection Control ,CDC". www.cdc. ... While the rest of a bacterial cell may stain, the endospore is left colourless. To combat this, a special stain technique ... However, sterilant alkylating agents such as ethylene oxide (ETO), and 10% bleach are effective against endospores. To kill ... ethylene oxide sterilizers. ETO is the only low-temperature sterilant to stop outbreaks on these instruments.[17] In contrast ...
Pure calcium carbide is a colourless solid. The common crystalline form at room temperature is a distorted rock-salt structure ... calcium oxide), Ca3P2 (calcium phosphide), CaS (calcium sulfide), Ca3N2 (calcium nitride), SiC (silicon carbide), etc.). In the ... The pure material is colorless, however pieces of technical-grade calcium carbide are grey or brown and consist of about 80-85 ...
The melting point of 1-butyl-3-methylimidazolium tetrafluoroborate is about −80 °C (−112 °F) and it is a colorless liquid with ... Ch, Rao Jagadeeswara, Venkatesan K.A., Nagarajan K., Srinivasan T.G. (2008). "Dissolution of uranium oxides and electrochemical ... in 1-butyl-3-methylimidazolium chloride and thermal characterization of uranium oxide deposit, Electrochimica Acta, Volume 52, ... which uses hydrated N-Methylmorpholine N-oxide, as a non-aqueous solvent for the dissolution of the pulp and paper. The ...
... (TeO2) is a solid oxide of tellurium. It is encountered in two different forms, the yellow orthorhombic ... mineral tellurite, β-TeO2, and the synthetic, colourless tetragonal (paratellurite), α-TeO2.[2] Most of the information ... additions of a second compound such as an oxide or halide. TeO2 glasses have high refractive indices and transmit into the mid- ... which marks TeO2 glass as distinct from the canonical single-oxide glass-formers such as SiO2, which share the same short-range ...
It is a colourless, pyrophoric, toxic gas with a sharp, repulsive smell, somewhat similar to that of acetic acid.[5] Silane is ... Iron(II) oxide. *Magnesium monohydride cation. *Methylidyne radical. *Nitric oxide. *Nitrogen (molecular) ...
A colourless liquid, it is sparingly soluble in water and highly soluble in ethanol. Paraldehyde slowly oxidizes in air, ...
It is a colourless liquid at room temperature that has a fishy odor, and is soluble in water, ethanol and ether.[18] Its ... "Association of FMO3 Variants and Trimethylamine N-Oxide Concentration, Disease Progression, and Mortality in CKD Patients" ...
This colorless solid can be prepared synthetically but also occurs in nature as minerals rosenbergite and oskarssonite. ... It is into this molten salt that aluminium oxide is dissolved and then electrolyzed to give bulk Al metal.[11] ...
The cis-form attacks glass over a time scale of about 2 weeks to form silicon tetrafluoride and nitrous oxide:[2] ... colorless gas Density 2.698 g/L Melting point cis: , −195 °C (−319.0 °F; 78.1 K) trans: −172 °C ...
OxidesEdit. Ytterbium reacts with oxygen to form ytterbium(III) oxide (Yb2O3), which crystallizes in the "rare-earth C-type ... Ytterbium dissolves readily in dilute sulfuric acid to form solutions that contain the colorless Yb(III) ions, which exist as ... The metal is extracted from the solution as oxalate and converted to oxide by heating. The oxide is reduced to metal by heating ... As ytterbium(III) oxide has a significantly higher emissivity in the infrared range than magnesium oxide, a higher radiant ...
Barium reacts with many other metal oxides and sulfides to make barium oxide or sulfide and the metal. It also reacts with ... Barium only occurs in one oxidation state: +2. Most barium compounds are colorless. The ones that dissolve in water or stomach ... At first it will turn black, then white as barium oxide is formed. Barium reacts with water to make barium hydroxide and ...
This colourless, sweet-smelling liquid was once produced industrially in large quantities for use as a solvent.[4] It is ...
Two oxides of germanium are known: germanium dioxide (GeO. 2, germania) and germanium monoxide, (GeO).[28] The dioxide, GeO2 ... For example, germanium tetrachloride, GeCl4, is obtained as a colorless fuming liquid boiling at 83.1 °C by heating the metal ... Germanium oxide is a dopant of the core silica (Item 1).. 1. Core 8 µm. 2. Cladding 125 µm. 3. Buffer 250 µm. 4. Jacket 400 µm ... The ore concentrates are mostly sulfidic; they are converted to the oxides by heating under air in a process known as roasting ...
Coboprotein would appear colorless when oxygenated, but yellow when in veins.. Presence in nonerythroid cells[edit]. Some ... Nitric oxide can also be transported by hemoglobin; it is bound to specific thiol groups in the globin protein to form an S- ... Carbon dioxide occupies a different binding site on the hemoglobin. Carbon dioxide is more readily dissolved in deoxygenated ... Nitric oxide is capable of converting a small fraction of hemoglobin to methemoglobin in red blood cells. The latter reaction ...
It is used as such in some industrial dyeing processes to eliminate excess dye, residual oxide, and unintended pigments and for ... Bleaches work by reacting with many colored organic compounds, such as natural pigments, and turning them into colorless ones. ... "Chlorine Oxides and Chlorine Oxygen Acids". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a06_483.pub2. ... rendering the resulting substance colorless. Extended exposure often leads to massive discoloration usually reducing the colors ...
Weaker oxidants, such as ferric oxide or hydrogen peroxide give the disulfide, diethyl disulfide: 2 EtSH + H2O2 → EtS-SEt + 2 H ... Colorless liquid[3] Odor Rotten cabbage, flatulence, skunk-like[3] Density 0.8617 g·cm−3 ...
CeO2 is used to decolorize glass by converting green-tinted ferrous impurities to nearly colorless ferric oxides.[2] ... Cerium(IV) oxide, also known as ceric oxide, ceric dioxide, ceria, cerium oxide or cerium dioxide, is an oxide of the rare- ... Cerium also forms cerium(III) oxide, Ce. 2O. 3, which is unstable and will oxidize to cerium(IV) oxide.[3] ... The cerium(IV) oxide-cerium(III) oxide cycle or CeO2/Ce2O3 cycle is a two step thermochemical water splitting process based on ...
2, as found in granite and quartz), aluminium (aluminium oxide Al. 2O. 3, in bauxite and corundum), iron (iron(III) oxide Fe. 2 ... Colorless gas; pale blue liquid. Oxygen bubbles rise in this rotated photo of liquid oxygen.. Spectral lines of oxygen ... Oxides and other inorganic compounds. Water (H. 2O) is an oxide of hydrogen and the most familiar oxygen compound. Hydrogen ... Oxides, such as iron oxide or rust, form when oxygen combines with other elements. ...
gas: colourless. liquid: pale blue. Standard atomic weight Ar, std(O). [7001159990300000000♠15.99903, 7001159997700000000♠ ... as oxides the element maks up awmaist hauf o the Yird's crust.[6] ... a colourless an odourless diatomic gas wi the formula O. 2. This is an important pairt o the atmosphere an diatomic oxygen gas ... o the chalcogen group on the periodic cairt an is a heichly reactive nonmetal an oxidisin agent that readily forms oxides wi ...
2, as found in granite and quartz), aluminium (aluminium oxide Al. 2O. 3, in bauxite and corundum), iron (iron(III) oxide Fe. 2 ... At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless and odorless diatomic gas ... Oxides and other inorganic compounds. Water (H. 2O) is an oxide of hydrogen and the most familiar oxygen compound. Hydrogen ... Oxides, such as iron oxide or rust, form when oxygen combines with other elements. ...
It is a colorless flammable gas with a faint "sweet and musky" odour when pure.[5] It is the simplest alkene (a hydrocarbon ... Ethylene oxide is also hydrolyzed to produce ethylene glycol, widely used as an automotive antifreeze as well as higher ... Ethylene is oxidized to produce ethylene oxide, a key raw material in the production of surfactants and detergents by ... In the United States and Europe, approximately 90% of ethylene is used to produce ethylene oxide, ethylene dichloride, ...
In this process, used oxide nuclear fuel is treated with fluorine gas to form a mixture of fluorides. This mixture is then ... colorless solid Density 5.09 g/cm3, solid Melting point 64.052 °C (147.294 °F; 337.202 K) (triple point at 151 kPa[1]) ... "Are there any currently-operating disposal facilities that can accept all of the depleted uranium oxide that would be generated ... government has been converting DUF6 to solid uranium oxides for disposal.[17] Such disposal of the entire DUF6 inventory could ...
It is a transparent oily, colorless liquid with a smell of menthol. It is very slightly soluble in ethanol, while practically ...
Iron oxide pigments: sanguine, caput mortuum, oxide red, red ochre, Venetian red, Prussian blue ... For use in paint, this powder is added to a binder (or vehicle), a relatively neutral or colorless material that suspends the ... Natural iron oxides give a range of colors and are found in many Paleolithic and Neolithic cave paintings. Two examples include ... Clay earth pigments (iron oxides): yellow ochre, raw sienna, burnt sienna, raw umber, burnt umber. ...
... is a colorless liquid aliphatic hydrocarbon classified as a cyclic monoterpene, and is the major component in the oil ... and limonene oxide.[6][7] With sulfur, it undergoes dehydrogenation to p-cymene.[8] ...
... which releases CO and leaves behind zinc oxide and calcium oxide:. Zn + CaCO3 → ZnO + CaO + CO. Silver nitrate and iodoform ... Carbon monoxide (CO) is a colorless, odorless, and tasteless gas that is slightly less dense than air. It is toxic to ... Carbon monoxide is also a byproduct of the reduction of metal oxide ores with carbon, shown in a simplified form as follows:. ... Carbon monoxide poisoning is the most common type of fatal air poisoning in many countries.[28] Carbon monoxide is colorless, ...
The purpose of this bulletin is to disseminate recent information on the potential carcinogenicity of propylene oxide. ... Propylene oxide at room temperature is a volatile, colorless, highly flammable liquid with a sweet, ether-like odor [WHO 1985 ... Methyl ethylene oxide. Methyloxirane. Propene oxide. Propylene epoxide. 1,2-propylene oxide. ... Propylene oxide is also increasingly considered as a substitute for ethylene oxide as a sterilant for medical equipment and a ...
Nitrogen monoxide Colorless gas. [Note: Shipped as a nonliquefied compressed gas.] ...
... a colorless, sweet-smelling, sweet-tasting, nonflammable, slightly water-soluble gas, N2O, that sometimes produces a feeling of ... nitrous oxide. in Science. nitrous oxide. *A colorless, sweet-smelling gas. It is used as a mild anesthetic, often called ... nitrous oxide. in Medicine. nitrous oxide. n.. *A colorless sweet-tasting gas used as a mild anesthetic in dentistry and ... nitrous oxide. nitrous oxide. noun. *a colourless nonflammable slightly soluble gas with a sweet smell: used as an anaesthetic ...
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Nitric oxide is a colorless gas at room temperature, very sparingly soluble in water. Nitrogen dioxide is a colorless to brown ... Nitric oxide is rapidly oxidized in air at high concentrations to form nitrogen dioxide. Synonyms for nitric oxide (NO) include ... The most hazardous of the nitrogen oxides are nitric oxide and nitrogen dioxide; the latter exists in equilibrium with its ... Synonyms for mixtures of nitrogen oxides include nitrogen fumes and nitrous fumes ...
COLOURLESS COMPRESSED GAS. Physical dangers Chemical dangers The substance is a strong oxidant. It reacts with combustible and ...
4-Methylmorpholine N-oxide, 50 wt.% solution in water, ACROS Organics 25g, Glass bottle Chemicals:Organic Compounds:Organic ... 4-methylmorpholine n-oxide,4-methylmorpholine 4-oxide,n-methylmorpholine oxide,n-methylmorpholine n-oxide,morpholine, 4-methyl ... 4-methylmorpholine n-oxide,4-methylmorpholine 4-oxide,n-methylmorpholine oxide,n-methylmorpholine n-oxide,morpholine, 4-methyl ... 4-oxide,4-methylmorpholine-4-oxide,methyl morpholine oxide,n-methylmorpholine-n-oxide,nmo,unii-arc64pkj0f. ...
... are provided by coating core particles of TiO2 having a mean particle size from 0.01 to 0.1 μm with a layer of metal oxide of ... They are almost colorless or transparent to visible light but selectively block the passage of UV light therethrough. ... These pigments are produced by intimately mixing TiO2 and the coloring metal oxides or oxide precursors, calcining the mixture ... Chromatic pigments comprising a coloring metal oxide coating on transparent titanium oxide core particles of 0.01 to 0.1 micron ...
It is a colorless viscous liquid. It is poorly soluble in water (20 ppm) but highly soluble in organic solvents. It is a potent ... Tributyltin oxide (TBTO) is an organotin compound chiefly used as a biocide (fungicide and molluscicide), especially a wood ... "Tributyltin oxide_msds". "Focus on IMO - Anti-fouling systems" (PDF). International Maritime Organisation. Organotin Chemistry ... ISBN 3-527-31023-1 National Pollutant Inventory Fact Sheet for organotins Tributyltin oxide in the Pesticide Properties ...
COLOURLESS-TO-PALE-YELLOW LIQUID. Physical dangers No data. Chemical dangers The substance may polymerize due to heating above ... STYRENE OXIDE. ICSC. : 1201. (Epoxyethyl)benzene. 1,2-Epoxyethylbenzene. Styrene-7,8-oxide. Phenylethylene oxide. Phenyl ...
Main article: Nitrogen oxide. Nitrogen dioxide at −196 °C, 0 °C, 23 °C, 35 °C, and 50 °C. NO. 2 converts to colourless ... They are readily reduced to nitrous oxide and nitric oxide by sulfur dioxide, to hyponitrous acid with tin(II), and to ammonia ... Nitrogen forms nine molecular oxides, some of which were the first gases to be identified: N2O (nitrous oxide), NO (nitric ... colorless gas, liquid or solid. Standard atomic weight. .mw-parser-output .nobold{font-weight:normal}. Ar, std(N). [14.00643, ...
Class: oxide *Colour: colourless. *Appearance: gas. *Melting point: -72.5°C. *Boiling point: -10°C ...
Silver nitrate, colorless. *Silver oxide, brown-black. *Silver sulfide, black. Silver(II) compounds. Silver(II) compounds are ... It is used in the silver oxide battery. They are also used in photographic film. They can also be used to reduce odors in ... Silver compounds can be brown, black, yellow, gray, or colorless. Silver compounds are disinfectants. ...
Gadolinium Scandium Oxide GdScO3 bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples program. ... About Gadolinium Scandium Oxide. Gadolinium Scandium Oxide is a crystalline solid used as a semiconductor and in photo optic ... Colorless crystal. Melting Point. ~2400 °C. Boiling Point. N/A. Density. 6.6 g/cm3 (25 °C). ... Related Applications, Forms & Industries for Gadolinium Scandium Oxide. Ceramics. Glass, Optical & Laser Materials. Oxides. ...
Popular Products of REACH Sunscreen Cyclopentasiloxane Cyclohexasiloxane 541-02-6 Volatile Silicone Colorless Oil by ... Its colorless and transparent liquid, without odor and irritation. Its easy to use and spread, imparting soft and lubricious ... REACH Sunscreen Cyclopentasiloxane Cyclohexasiloxane 541-02-6 Volatile Silicone Colorless Oil Categories. Cyclopentasiloxane ... REACH Sunscreen Cyclopentasiloxane Cyclohexasiloxane 541-02-6 Volatile Silicone Colorless Oil REACH Sunscreen ...
Transparent metal oxides (MeOx) play an important role as the dominant class for solution-processed interface materials in this ... The DEA-TiOx solution was colorless. The coloration for the EA-TiOx and the AA-TiOx was explained as the d-d absorption ... Zinc Oxide (ZnO). Zink oxide (ZnO) is an n-type, direct, wide band gap (Eg = 3.37 eV) and non-toxic semiconductor material with ... Synthesis of p-Type-Like Transition Metal Oxides by Wet Chemical Methods. Transition p-type-like metal oxides MoO3, WO3 and V2O ...
SO3 is also called sulfuric oxide and sulfuric anhydride. It is used in the production of sulfuric acid and other chemicals, ... Sulfuric acid is a clear, colorless, oily liquid that is very corrosive. It is also called sulphine acid, battery acid, and ... is generally a colorless liquid. It can also exist as ice- or fiber-like crystals or as a gas. When SO3 is exposed to air, it ... Summary: Sulfur trioxide (SO3) is generally a colorless liquid. It can also exist as ice- or fiber-like crystals or as a gas. ...
It is a colorless gas. It is easily oxidized to nitrogen dioxide by air. It can react with a mixture of air and water to make ... The ammonia is reacted with air to make nitric oxide. The nitric oxide is oxidized to nitrogen dioxide by air. The nitrogen ... Nitric oxide also known as nitrogen monoxide is a chemical compound. It contains nitrogen in its +2 oxidation state. It has the ... Nitric oxide is toxic when breathed in. It also easily is oxidized to nitrogen dioxide, a toxic brown choking substance. ...
The material was concentrated in vacuo to afford a brown oil, which crystallized overnight as colourless laths in the freezer ... Keywords: crystal structure; catalysis; aryl N-oxides; 1-methyl-2H-imidazole 3-N-oxide; hydrate; hydrogen bonding. ... for the imidazole-3-oxide substructure yielded 16 hits, all of which were genuine examples of substituted imidazole-3-oxides. ... Closely related examples include 1-hy-droxy-imidazole-3-oxide (DOJKUJ), 1-hy-droxy-2-methyl-imidazole-3-oxide (DOJLAQ), 3-hy- ...
colourless gas. CAS number. 10102-43-9. Properties. Density and phase. 1.3 × 103 kg m−3 (liquid). 1.34 g dm−3 (vapour). ... Nitric oxide (NO) should not be confused with nitrous oxide (N2O), a general anesthetic, or with nitrogen dioxide (NO2), which ... Nitric oxide is also generated by macrophages and neutrophils as part of the human immune response. Nitric oxide is toxic to ... In plants, nitric oxide can be produced by any of four routes: (i) nitric oxide synthase (as in animals), (ii) by plasma ...
Needle, colourless. V = 496.33 (12) Å3. 0.22 × 0.20 × 0.19 mm. Data collection. top. Bruker APEXII CCD area-detector ... η5-Cyclo-penta-dienyl)(η6-phenoxathiin 10,10-dioxide)iron(II) hexa-fluoridophosphate and phenoxathiin 10,10-di-oxide. ...
Strontium Oxide Nanoparticles / Nanopowder SrO bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free ... Strontium Oxide Nanoparticles / Nanopowder Properties. Compound Formula. OSr. Molecular Weight. 103.62. Appearance. colorless ... Customers For Strontium Oxide Nanoparticles / Nanopowder Have Also Viewed. Strontium Oxide Nanoparticle Dispersion ... About Strontium Oxide Nanoparticles / Nanopowder. Strontium Oxide (SrO) Nanopowder or Nanoparticles, nanodots or nanocrystals ...
Colorless Phase Stabilized Ammonium Nitrate PSAN With Zinc Oxide ZnO CAS NO 6484-52-2 ... Colorless Phase Stabilized Ammonium Nitrate PSAN With Zinc Oxide ZnO CAS NO 6484-52-2 ... stabilized ammonium nitrate ( PSAN ) with zinc oxide ( ZnO ) Product Briefing Phase Stabilized Ammonium Nitrate CAS NO:6484-52- ... IMZ Chemical intermediate Chemical Name: quaternary ammonium-type cation Imidazole Appearance: colorless to yellowish liquid ...
... began experimenting with the effects of inhaling nitrous oxide [2]. ... Nitrous oxide Nitrous oxide was first identified by Joseph Priestley [1] in 1772. Years later in the late 1790s, British ... nitrous oxide (dinitrogen oxide) Colourless gas (N2O) that is used as an anaesthetic or analgesic during surgical or dental ... Nitrous Oxide. Definition. Nitrous oxide is a colorless, sweet-smelling gas used as an anesthetic, most commonly during dental ...
... oxide is an oxide of the synthetic actinide einsteinium which has the molecular formula Es2O3. It is a colourless solid. Three ... Einsteinium(III) oxide can be obtained by annealing einsteinium(III) nitrate in sub-microgram quantities. Arnold F. Holleman, ... The other two forms are monoclinic and hexagonal: the hexagonal form has the lanthanum(III) oxide structure. ...
In addition to forming an oxide (scandium oxide, Sc2O3), scandium is capable of forming a number of colorless salts. For ... It forms an oxide and a number of colorless salts. Its compounds are found widely distributed in minute amounts in nature. It ... Today, companies that use scandium often buy the oxide rather than the pure metal. The oxide costs several thousand dollars per ... The substance discovered by Nilson was not pure scandium metal, but a compound of scandium and oxygen -scandium oxide (Sc2O3). ...
Colorless. CAS. 7789-20-0. Molecular Formula. H2O. Synonym. deuterium oxide, water-d2, heavy water, deuterated water, ... deuterium oxide, water-d2, heavy water, deuterated water, dideuterium oxide, heavy water-d2, heavy water d2o, water sup 2-h2, ... dideuterium oxide, heavy water-d2, heavy water d2o, water sup 2-h2, deuterium oxide usan, water, heavy d2-o. ...
... aluminum oxide suppliers, manufacturers, wholesalers, aluminum oxide sellers, traders, exporters and distributors from China ... aluminum oxide Manufacturers Directory ☆ 3 million global importers and exporters ☆ ... Oxide film has high transparency. Sulphuric acid positive electrode oxide film of pure aluminum is colorless .... ... 99.99% Al2O3 / Aluminum Oxide. 99.99% Al2O3 / Aluminum Oxide 99.99% aluminium oxide sinter Our aluminium oxide has two ...
... oxide (or tetraphosphorus hexoxide), P4O6, and phosphorus(V) oxide (or tetraphosphorus decaoxide), P4O10. Both oxides have a ... Oxides of phosphorus: Phosphorus forms two common oxides, phosphorus(III) ... Phosphorus(III) oxide is a white crystalline solid that smells like garlic and has a poisonous vapour. It oxidizes slowly in ... Phosphorus(V) oxide is a white flocculent powder that can be prepared by heating elemental phosphorus in excess ...
  • To him is to be credited the first operation ever performed without pain by the use of nitrous-oxide gas. (
  • In 1844, Horace Wells, a native of Vermont, discovered that the inhalation of nitrous-oxide gas produces anaesthesia. (
  • It was then and not until then that the nitrous-oxide plant began running at anything like its real capacity. (
  • Nitrous oxide occurs naturally in the atmosphere and is a greenhouse gas. (
  • Nitric oxide (NO) is odorless and nitrous oxide (N 2 O) has only a very faint odor. (
  • The toxicity of nitrous oxide (N 2 O) or laughing gas, which is used as an anesthetic, is different from that of the other nitrogen oxides and is not discussed in this protocol. (
  • Nitric oxide (NO) should not be confused with nitrous oxide (N 2 O), a general anesthetic, or with nitrogen dioxide (NO 2 ), which is another poisonous air pollutant. (
  • In one of its applications it is used along with nitrous oxide to form oxynitride gates in CMOS devices. (
  • Nitrous oxide is a type of anesthetic, a substance used to deaden pain. (
  • Best known by the nickname "laughing gas," nitrous oxide is used primarily by dentists to keep patients comfortable during painful procedures. (
  • As a recreational drug-a drug used solely to get high, not to treat a medical condition- nitrous oxide is classified as an inhalant. (
  • Among young teens, nitrous oxide is typically obtained from canned whipped cream available at grocery stores. (
  • Nitrous oxide gas is used to propel, or to drive out, the whipped cream from the can. (
  • Sales of nitrous oxide to older teens and adults usually occur at dance clubs and all-night dance parties called raves or through Internet transactions. (
  • In the 1700s and the 1800s, chemists, doctors, and dentists in Europe and the United States experimented with three different anesthetic gases: nitrous oxide, ether (EETH-uhr), and chloroform (KLOR-uh-form). (
  • Nitrous oxide, ether, and chloroform all dull or block painful sensations. (
  • A research report titled "Inhalant Abuse," prepared by the National Institute on Drug Abuse (NIDA) and updated in 2005, noted that "nitrous oxide is the most abused of these [three] gases. (
  • Nitrous oxide is a gas with both anesthetic and analgesic (pain relieving) properties. (
  • Although Priestley is credited with discovering nitrous oxide, another scientist recognized the potential value of its numbing and intoxicating effects. (
  • And so, despite Davy's writings on the subject, nitrous oxide was not put to use in the medical field for another four decades. (
  • Instead, nitrous oxide, which had earned the nickname "laughing gas," enjoyed popularity as a way for the British upper classes to entertain themselves at social gatherings. (
  • The highly successful performances showed the uninhibiting effects of nitrous oxide on audience volunteers eager to try the gas. (
  • Gardner Q. Colton (1814-1898), a former medical student, made a good living by giving public demonstrations of nitrous oxide. (
  • In New York City in 1844, he organized the "Grand Exhibition of Nitrous Oxide" on Broadway, charging the then-outrageous price of twenty-five cents per ticket. (
  • Nitrous Oxide Gas, Protoxide of Nitrogen, "Laughing Gas. (
  • Nitrous oxide (N 2 O), commonly known as laughing gas or happy gas, was first discovered in 1793 by the English scientist Joseph Priestly and has been used for more than 150 years. (
  • Nitrous oxide is small inorganic chemical molecule and may also be known as dinitrogen oxide or dinitrogen monoxide. (
  • Nitrous oxide also has some illicit recreational uses and abuse potential. (
  • Some of the nonmedical uses of nitrous oxide include the semiconductor industry, car racing, and food processing. (
  • Nitrous oxide is administered by inhalation, absorbed by diffusion through the lungs, and eliminated via respiration. (
  • The elimination half life of nitrous oxide is approximately 5 minutes. (
  • Nitrous oxide is a weak inhalational anesthetic. (
  • Because 105% alveolar concentration is needed to induce general anesthesia when nitrous oxide is used as a sole anesthetic agent, it is ineffective as a single agent for general anesthesia. (
  • As a result, nitrous oxide is most commonly used in combination with other more potent inhalational anesthetics for general anesthesia. (
  • One of the most common uses of nitrous oxide in anesthesia is during mask induction of general anesthesia in pediatric patients. (
  • In dentistry, nitrous oxide is indicated to decrease the pain and anxiety associated with procedures. (
  • [ 1 ] The specially designed nasal mask fully covers the nose, allowing the mixture of nitrous oxide with oxygen to flow while the dentist works on the patient's mouth. (
  • Nitrous oxide is commonly offered by pediatric dentists to assist in inducing amnesia, as well as increasing analgesia, relaxation, and cooperation in younger patients. (
  • Nitrous oxide may also be useful for prolonged or more involved dental procedures as well as in patients with hyperresponsive gag reflexes. (
  • Less commonly, self-administered nitrous oxide is reported for chronic pain from terminal illness and pain associated with cancer treatment. (
  • Nitrous oxide use in children undergoing basic procedures including lumbar puncture , venous cannulation, or dressing changes has demonstrated a significant reduction in pain levels, allowing for a shorter recovery. (
  • [ 7 ] A 2009 prospective, randomized study showed that a 70:30 mix of nitrous oxide in oxygen, administered for 3 minutes, was effective in reducing pain in children undergoing venipuncture. (
  • Nitrous oxide has been proven beneficial in young children receiving injections for juvenile arthritis . (
  • [ 9 ] Additionally, nitrous oxide has been used successfully as an anesthetic for children undergoing minor surgeries such as cyst surgery and abscess drainage. (
  • Overall, nitrous oxide is a very safe drug with few absolute contraindications. (
  • Nitrous oxide is contraindicated in patients with significant respiratory compromise. (
  • The government banned sales of nitrous oxide, also known as laughing gas, dubbing it a hallucinogen, Tuesday. (
  • Nitrous oxide is a colorless and sweet-tasting gas with a euphoric effect. (
  • In April, a man in Suwon, south of Seoul, died after inhaling too much nitrous oxide. (
  • The police found 104 nitrous oxide capsules in his possession ― 17 of which had been used. (
  • The need for nitrous oxide regulation grew recently, but no law has been put in place to prohibit it. (
  • Nitrous oxide is a colourless gas that's most commonly found in pressurised metal canisters. (
  • Nitrous oxide is inhaled. (
  • Inhaling nitrous oxide directly from the canister is very dangerous because the gas is under such high pressure. (
  • Nitrous oxide slows down your brain and your body's responses, and the effects of the drug varies depending on how much has been inhaled. (
  • Nitrous oxide is often taken in combination with other drugs. (
  • It is very dangerous to inhale nitrous oxide directly from the canister, and doing it in an enclosed space is also very dangerous. (
  • If you take too much nitrous oxide you risk falling unconscious and/or suffocating from the lack of oxygen. (
  • Heavy regular use of nitrous oxide can lead to a deficiency of vitamin B12 and to a form of anaemia. (
  • Mixing nitrous oxide with alcohol is especially dangerous as it can increase the risks associated with both substances and can lead to an increased risk of accidents. (
  • It may be possible to become psychologically dependent on nitrous oxide, meaning that users develop an increased desire to keep using it despite the harm it may cause, but the evidence on this is limited. (
  • In anecdotal reports, some people have reported developing cravings or feelings that they want to continue using nitrous oxide. (
  • As of 2016, nitrous oxide is covered by the Psychoactive Substances Act and is illegal to supply for its psychoactive effect. (
  • Worried about nitrous oxide use? (
  • Some common oxides include carbon dioxide (CO2), nitrous oxide (N20) and iron oxide (Fe3O4). (
  • Nitrous oxide is a colourless gas. (
  • Nitrous oxide is most commonly inhaled through the mouth. (
  • Volatile substances like nitrous oxide are depressant-type drugs, which means that they slow down your brain and your body's responses. (
  • Nitrous oxide can cause dizziness or affect your judgement, which might make you act carelessly or dangerously and put you at risk of hurting yourself, particularly in an unsafe environment. (
  • This occurs when the available oxygen for breathing is effectively pushed out by the nitrous oxide. (
  • Severe vitamin B deficiency can develop with heavy, regular use of nitrous oxide. (
  • Nitrous oxide is not legal, but this doesn't mean that it is safe to use. (
  • This property is helpful when introducing nitrous oxide/oxygen to an extremely anxious patient by placing the nasal hood a few inches above an anxious patient with the nitrous oxide to descending into the patient's nose, enabling gradual desensitization to the experience. (
  • Nitrous oxide is a colorless and virtually odorless gas with a faint, sweet smell. (
  • Nitrous oxide has rapid uptake, being absorbed quickly from the alveoli and in a simple solution in the serum. (
  • As nitrous oxide is 34 times more soluble than nitrogen in blood, diffusion hypoxia may occur and administering 100% oxygen to the patient for 3-5 minutes once the nitrous oxide has been terminated is important. (
  • Nitrous oxide causes minor depression in cardiac output while peripheral resisatnce is slightly decreased, thereby maintaining blood pressure. (
  • Sedation with Nitrous Oxide in Washington, D.C. (
  • Sedation Dentistry with Nitrous Oxide offers a safe way to eliminate anxiety at the dentist by giving patients a mixture of gases they breathe in through a nose piece. (
  • When the procedure is over, the nitrous oxide is turned off and the effect disappears within minutes. (
  • Nitrous oxide is mixed with oxygen to be easily inhaled through a small mask that will fit over the nose. (
  • Shortly after breathing in nitrous oxide, you may experience a feeling of lightheadedness or a tingling in the arms and legs. (
  • There are numerous benefits associated with nitrous oxide that one of our talented dentists would love to discuss with you. (
  • Nitrous oxide works rapidly where relaxation can set in around 2-3 minutes after inhalation. (
  • Nitrous oxide doesn't have a fixed duration, where its effects are felt for a set time but wears off when not being inhaled. (
  • Nitrous oxide can replace a local anesthetic in some cases, especially in procedures involving the gums since it acts as a painkiller. (
  • The most important of all is the fact that nitrous oxide is very safe and is tolerated well by most patients with very few serious side effects. (
  • Known as 'laughing gas,' nitrous oxide is used in our office to sedate customers through a variety of dental procedures. (
  • While nitrous oxide sedates you, it won't put you to sleep, Any our dentists would be more than happy to educate you on everything you want to know about this form of sedation. (
  • At standard temperature and pressure , two atoms of the element bind to form dinitrogen, a colourless and odorless diatomic gas with the formula N 2 . (
  • A colorless, odorless, non-combustible gas, present in low concentrations in the air we breathe (about three hundredths of one percent by volume). (
  • An odorless, colorless, and highly poisonous gas. (
  • The odorless, colorless EtO gas is widely used in hospitals to sterilize surgical equipment. (
  • Oxygen is a tasteless, odorless and colorless gas. (
  • Carbon monoxide is colorless, odorless, non-irritating but very poisonous gas. (
  • Carbon monoxide (CO) is an odorless, colorless, tasteless gas that is slightly lighter than air. (
  • Odorless, colorless to white solid. (
  • This is due to nitric oxide, a colorless and odorless gas. (
  • Many of the nitrogen oxides are colorless and odorless. (
  • It combines PG and carbonic acid to make a solvent that is colorless and odorless. (
  • Carbon monoxide (CO) - CO is a colorless, odorless, toxic yet non-irritating gas. (
  • Colorless Odorless Isotopic Gases , 129 Xe Xenon Noble Gas Medical Grade Description: 129Xe is a heavy, colorless, odorless, high pressure, noble gas . (
  • It's colorless, odorless and non-irritating. (
  • Potassium Bicarbonate - A colorless, odorless compound selected for its high dissolution rate. (
  • Colorless, odorless and tasteless, it kills uncounted thousands of people every year. (
  • Propylene oxide at room temperature is a volatile, colorless, highly flammable liquid with a sweet, ether-like odor [ WHO 1985 ]. (
  • Odor generally provides an adequate warning of acute exposure providing the higher oxides (NO 2 , N 2 O 4 and N 2 O 5 ) are present. (
  • It's colorless and transparent liquid, without odor and irritation. (
  • It is a colorless and nonflammable gas with a slightly sweet odor. (
  • Nitric oxide (NO) is a nonflammable, extremely toxic, oxidizing gas with a sweet, sharp odor. (
  • A colorless liquid with an amine-like odor. (
  • According to the National Cancer Institute, at room temperature, it's a flammable, colorless gas with a sweet odor. (
  • Propylene oxide is also increasingly considered as a substitute for ethylene oxide as a sterilant for medical equipment and a fumigant for foodstuffs. (
  • WASHINGTON - Ethylene oxide exposure levels and monitoring requirements are addressed in the Occupational Safety and Health Administration's (OSHA) recently published Small Business Guide for Ethylene Oxide . (
  • The guidance document helps employers understand the ethylene oxide (EtO) standard and explains how to monitor the air quality in workplaces where EtO is processed, used or handled. (
  • Because ethylene oxide cannot be detected by sight or smell, workers can be exposed to dangerous levels and not realize it," said acting Assistant Secretary of Labor for OSHA Jordan Barab. (
  • The Getinge Assured Tape (Ethylene Oxide) is designed for use in ethylene oxide (EO) sterilizers operating at 600 mg/l EO gas, 40-60% Relative Humidity, 54°C for 45 minutes or longer. (
  • We are manufacturing and supplying Ethylene Oxide Gas Cartridges (100% ETO Cartridges).Special Features:High effectiveness as a bactericide, fungicide. (
  • With utmost focus to offer the best, we are affianced to manufacture, export and supply Ethylene Oxide Condensates to our valuable clients. (
  • Ethylene Oxide Gas Cartridge The provided Ethylene Oxide Gas Cartridge is effectively ideal for all kinds and brands of ETO sterilization systems. (
  • Ethylene oxide (oxirane), molecular model. (
  • Dozens of Burr Ridge residents turned out Monday to speak out against Sterigenics, a Willowbrook sterilization company that is releasing ethylene oxide . (
  • In 2014, the Environmental Protection Agency classified ethylene oxide as a carcinogen. (
  • In late August, the EPA released a report based on 2014 data that indicated the company's ethylene oxide emissions may pose a health risk for residents. (
  • Aikman said while Sterigenics is currently operating within federal guidelines, ethylene oxide could still pose a danger to residents. (
  • He said ethylene oxide is a colorless gas that is used to sterilize equipment. (
  • Aikman said it stays in the atmosphere from 69 to 211 days, though he said the air tests in Willowbrook indicate that the ethylene oxide levels meet federal guidelines. (
  • Residents said they wanted the company shuttered until more information is known about the risks of ethylene oxide. (
  • Molecular model of the cyclic ether ethylene oxide (C2.H4.O), also known as oxirane. (
  • Shell chemicals companies are among the largest global producers of high purity ethylene oxide, a versatile chemical intermediate used in the production of derivatives that provide the raw materials for polyester fibres and drinks bottles, soap and detergent components, antifreeze, cosmetics and paints. (
  • High Purity Ethylene oxide (HPEO) is a colourless, highly reactive and flammable gas at room temperature. (
  • What is ethylene oxide? (
  • The risks are reported to be driven by one chemical - ethylene oxide. (
  • 11Alive has been flooded with emails from worried people in Smyrna and Covington, after a WebMD article was published over the weekend which warned about the level of ethylene oxide released by two companies in those areas. (
  • In recent years, the United States Environmental Protection Agency updated its classification for ethylene oxide from "Likely to cause cancer" to "Definitely causes cancer," and companies are releasing more of the chemical than allowed, but it's not illegal. (
  • But what exactly is ethylene oxide, and why is it so concerning? (
  • The National Cancer Institute said it has also been commonly linked with blood cancers like lymphoma and leukemia, but other forms of cancer, like stomach and breast cancer, could come from exposure to ethylene oxide as well. (
  • A colorless, poisonous gas produced as an intermediate compound during the manufacture of nitric acid from ammonia or from atmospheric nitrogen. (
  • Nitric oxide (NO) is colorless, poisonous gas. (
  • Carbon monoxide, CO - Carbon monoxide is a colourless, odourless poisonous gas. (
  • The mixture includes nitric oxide (NO), nitrogen dioxide (NO 2 ), nitrogen trioxide (N 2 O 3 ), nitrogen tetroxide (N 2 O 4 ), and nitrogen pentoxide (N 2 O 5 ). (
  • Nitrogen dioxide is a colorless to brown liquid at room temperature and a reddish-brown gas above 70°F poorly soluble in water. (
  • Nitric oxide is rapidly oxidized in air at high concentrations to form nitrogen dioxide. (
  • Both nitrogen dioxide and nitric oxide are gases at room temperature. (
  • The nitric oxide is oxidized to nitrogen dioxide by air. (
  • The nitrogen dioxide is dissolved in water to make nitric acid and more nitric oxide. (
  • a colourless slightly soluble gas forming red fumes of nitrogen dioxide in air. (
  • With the ability to accurately detect up to 6 gases, Industrial Scientific's MX6 iBrid® portable multi-gas detector is the ideal instrument for nitric oxide and nitrogen dioxide gas detection. (
  • Nitrogen oxides (NO x ) especially nitrogen dioxide are emitted from high temperature combustion. (
  • Nitrogen oxides (NO x ) - Nitrogen oxides, particularly nitrogen dioxide , are expelled from high temperature combustion, and are also produced during thunderstorms by electric discharge . (
  • a colorless, sweet-smelling, sweet-tasting, nonflammable, slightly water-soluble gas, N 2 O, that sometimes produces a feeling of exhilaration when inhaled: used chiefly as an anesthetic in dentistry and surgery, in the manufacture of chemicals, and as an aerosol. (
  • a colourless nonflammable slightly soluble gas with a sweet smell: used as an anaesthetic in dentistry and surgery. (
  • Nitric oxide is a colorless gas at room temperature, very sparingly soluble in water. (
  • a colorless, slightly water-soluble gas, NO, formed by the action of dilute nitric acid on copper, and by the direct combination of atmospheric oxygen and nitrogen at the high temperatures of an electric arc: an intermediate in the manufacture of nitric acid. (
  • Nitric oxide is somewhat soluble in water and when inhaled will react to form nitric acid. (
  • Sodium silicate is a generic name for a range of compounds derived from soluble silicate glasses that are water solutions of silicon dioxide and sodium oxide in various ratios. (
  • B6C3F 1 mice exposed by inhalation to propylene oxide developed hemangiomas and hemangiosarcomas of the nasal mucosa. (
  • Degeneration of the olfactory epithelium and hyperplasia of the respiratory epithelium were induced in the nasal cavities of Wistar rats exposed to propylene oxide by inhalation. (
  • The primary route of exposure to nitrogen oxides is by inhalation, but exposure by any route can cause systemic effects. (
  • When you breathe through your nose, the nitric oxide in the paranasal sinuses follows the inhalation through the airways, down into the lungs and into the millions of microscopic sacs, known as alveoli, that supply the blood with oxygen. (
  • Children exposed to the same levels of nitrogen oxides as adults may receive larger doses because they have greater lung surface area:body weight ratios and increased minute volumes:weight ratios. (
  • Schematic drawing, causes and effects of air pollution: (1) greenhouse effect, (2) particulate contamination , (3) increased UV radiation, (4) acid rain, (5) increased ground-level ozone concentration, (6) increased levels of nitrogen oxides. (
  • Carbon dioxide is a colourless and essentially odourless gas that is 1.5 times as dense as air. (
  • Carbon dioxide, CO2 - Carbon dioxide is a colourless, odourless gas, denser than air that occurs naturally in the earth's atmosphere. (
  • Carbon monoxide is a colourless and odourless gas, generally produced by vehicles. (
  • Nitric oxide, known as the endothelium-derived relaxing factor, or EDRF, is biosynthesized from arginine and oxygen by various nitric oxide synthase (NOS) enzymes and by reduction of inorganic nitrate. (
  • Nitrogen oxides are a mixture of gases that are composed of nitrogen and oxygen. (
  • Phosphorus(V) oxide is a white flocculent powder that can be prepared by heating elemental phosphorus in excess oxygen. (
  • The substance discovered by Nilson was not pure scandium metal, but a compound of scandium and oxygen - scandium oxide (Sc 2 O 3 ). (
  • Lead (IV) oxide decomposes into lead (II) oxide and oxygen gas. (
  • In the body, nitric oxide is involved in oxygen transport to the tissues, the transmission of nerve impulses, and other physiological activities. (
  • In high-temperature welding (oxyacetylene or electric torch), the nitrogen and oxygen in the air combine to form oxides of nitrogen. (
  • All of them form oxides with oxygen except the argon. (
  • 2HOCl 2HCl + O2 The structure of period 3 oxides is determined by the difference in electronegativity between each element in period 3 and the oxygen element. (
  • At the same time, the oxygen atom in non-metal oxide forms a bond with hydrogen atom in water molecule. (
  • The vaporized aluminum remains transparent and is not immediately visible as a telltale white streak due to the unavailability of oxygen to allow the aluminum vapor to transform into its final stage as aluminum oxide. (
  • Research has shown that nitric oxide plays an important role in increasing blood oxygen and improving oxygen absorption by the lungs. (
  • NOx, (nitrogen oxide gases) is the generic term for a group of highly reactive gases, all of which contain nitrogen and oxygen in varying amounts. (
  • Another industrially important derivative of propylene is propylene oxide, a closed ring derivative with a reactive oxygen group. (
  • Nitrogen oxides, or NOx, is the generic term for a group of highly reactive gases, all of which contain nitrogen and oxygen in varying amounts. (
  • Thus, graphene oxide (GO), the intermediate product of oxidation of graphite, with many oxygen-rich functional groups (epoxy, hydroxyl, and carbonyl groups), is an attractive object for many research areas such as detection of DNA [ 3 ], matrix composite membranes, or film [ 4 - 6 ], especially in removal of heavy metal ions and organic pollutants from aqueous solutions. (
  • Aluminium oxide or alumina is the chemical compound of aluminium and oxygen , with chemical formula Al 2 O 3 . (
  • niosh estimates that more than 200,000 workers in the United States are potentially exposed to propylene oxide. (
  • Most workers are exposed to propylene oxide during its use as an intermediate in the manufacture of (1) polyols for urethane applications, (2) propylene glycol for polyester resins, and (3) propylene glycol ethers for solvents, coatings, and cleaning compounds. (
  • The potential for propylene oxide to produce cancer in humans has not been determined. (
  • niosh therefore recommends that propylene oxide be regarded as a potential occupational carcinogen and that occupational exposure be reduced to the lowest feasible concentration. (
  • NIOSH recommends that producers and users of propylene oxide disseminate this information to their workers and customers, that professional and trade associations and unions inform their members of the potential hazards of working with propylene oxide, and that appropriate engineering controls work practices be used to minimize the exposure of workers. (
  • Studies in animals have demonstrated that propylene oxide is a direct-acting carcinogen. (
  • F344/N rats exposed to propylene oxide in air developed papillary adenomas of the nasal epithelium. (
  • Squamous cell carcinomas of the forestomach developed in rats administered propylene oxide by gavage. (
  • Although epidemiologic data are not available from workers exposed to propylene oxide, the findings of cancer and other tumors in both rats and mice treated with propylene oxide meet the criteria established in the Occupational Safety and Health Administration Cancer Policy [Title 29 of the Code of Federal Regulations , Section 1990.112] for regarding propylene oxide as a potential occupational carcinogen. (
  • The National Institute for Occupational Safety and Health therefore recommends that occupational exposures to propylene oxide be reduced to the lowest feasible concentration. (
  • The purpose of this bulletin is to disseminate recent information on the potential carcinogenicity of propylene oxide. (
  • Recent studies of the chronic effects of this chemical in animals have produced evidence that cancer is associated with exposure to propylene oxide. (
  • This bulletin describes the results of those animal studies, presents the known human health effects of propylene oxide, and suggests guidelines for minimizing occupational exposures. (
  • Packaging: propylene oxide can be kept in a dry, clean and good sealing galvanized metal bucket, or using special tanker. (
  • Propylene oxide should be stored below 25 ℃ in a cool, ventilated, dry place, not exposured in direct sunlight and isolate from the source of fire. (
  • Propylene oxide is flammable and should be kept in ventilated, dry, low temperature ( 25 ℃ or less) , cool place, not in direct sunlight exposure and isolate the source of fire. (
  • Also, we purchase methanol , propylene oxide and Carbon Disulfide with large quantity. (
  • Propylene oxide is a chemical building block for the manufacture of a versatile range of derivatives including polyols and propylene glycols. (
  • A smaller percentage of propylene oxide is used in making propylene glycol (PG) and polypropylene glycol (PPG). (
  • Propylene carbonate is another product of propylene oxide. (
  • A popular epoxidation process has been the propylene oxide/styrene monomer (PO/SM) route, which produces 2.25 tonnes of styrene for every tonne of PO. (
  • This page is your aluminum oxide one-stop source for the competitive price and quality. (
  • Global aluminum oxide buyers find suppliers here every day. (
  • magnesium aluminum oxide) that resembles ruby . (
  • iron + aluminum oxide Æ 3. (
  • The term "alumina" refers to aluminum oxide - the most dangerous form of the heavy metal to human and plant life. (
  • It's important to make the distinction that drinking soda from a lined aluminum can is nowhere near the infinitely higher health risk of breathing, inhaling or otherwise ingesting aluminum oxide suspended in the atmosphere as it falls from a sky full of aluminized jet aircraft aerosols. (
  • We attempt to explain the physics of how jet fuel can be formulated to actually contain aluminum in the form of trimethylaluminum in order to spray aluminum oxide aerosols that originate directly from additives already in the jet fuel. (
  • Ammonia, NH3 - In its pure state and under usual environmental conditions, ammonia exists as a colourless, pungent-smelling gas. (
  • Nitrogen oxides form naturally during the oxidation of nitrogen-containing compounds such as coal, diesel fuel, and silage. (
  • It is highly reactive and combines with most other elements to form compounds, especially oxides. (
  • In analogy to other azoles and in contrast to six-membered aromatic N -heterocycles, N -oxides 1 cannot be prepared via oxidation of the parent imidazoles by treatment with an oxidizing agent, e.g., with a percarboxylic acid [6] . (
  • both are nonflammable and colorless to brown at room temperature. (
  • The isomerization of N -oxides 1 into the corresponding imidazol-2-ones can be easily performed by treatment with acetic anhydride at room temperature [14] . (
  • Formaldehyde is a colorless, flammable gas at room temperature. (
  • State and explain whether zinc oxide is a base, an alkali, or both. (
  • Acid base reaction will occur when zinc oxide is added to nitric acid water and zinc nitrate (salt) are formed the equation is: ZnO + 2 HNO3 = Zn(NO3)2 +H2O Stirring should help. (
  • See Zinc oxide , below. (
  • Zinc white , a white powder consisting of zinc oxide, used as a pigment. (
  • 8. The method of claim 6, wherein the metal is selected from the group consisting of magnesium oxide, iron oxide, copper oxide, and zinc oxide. (
  • Synonyms for mixtures of nitrogen oxides include nitrogen fumes and nitrous fumes. (
  • This produces toxic fumes including nitrogen oxides. (
  • On combustion, forms toxic fumes of nitrogen oxides. (
  • Nitrogen oxides represent a mixture of gases designated by the formula NO x . (
  • It has the chemical formula NO. It contains nitrogen and oxide ions . (
  • The chemical compound nitric oxide is a gas with formula N O . It is an important signaling molecule in the body of mammals , including humans -one of the few gaseous signaling molecules known. (
  • Einsteinium(III) oxide is an oxide of the synthetic actinide einsteinium which has the molecular formula Es2O3. (
  • Sulfur oxides (SO x ) - particularly sulphur dioxide, a chemical compound with the formula SO 2 . (
  • It evolves white smoke (aluminium oxides) when the vapor is released into the air. (
  • The sodium dissolves in the acid, while aluminium oxide/hydroxide precipitates. (
  • It's the most common and stable form of the aluminium oxides. (
  • Aluminium oxide occurs naturally in it's crystalline alpha phase as mineral corundum . (
  • Aluminium oxide will react with sodium hydroxide to form sodium aluminate. (
  • Aluminium oxide is a white solid compound, insoluble in water and solvent, but will dissolve in non-oxidizing acids. (
  • Aluminium oxide isn't flamable or explosive. (
  • Aluminium oxide could be safely dumped with normal trash or spilled out in a soil. (
  • Phosphorus forms two common oxides, phosphorus(III) oxide (or tetraphosphorus hexoxide), P 4 O 6 , and phosphorus(V) oxide (or tetraphosphorus decaoxide ), P 4 O 10 . (
  • Synonyms for nitric oxide (NO) include mononitrogen monoxide and nitrogen monoxide. (
  • Persons whose clothing is contaminated with liquid nitrogen oxides can secondarily contaminate others by direct contact or through off-gassing vapors. (
  • It is a colorless viscous liquid. (
  • nitric acid is a colorless or pale liquid that is highly corrosive and poisonous. (
  • 1,2-Dichloroethane (DCE) - 1,2-dichloroethane is a clear, colourless volatile liquid with a sweet, pleasant odour. (
  • Benzene - Benzene is a colourless, volatile and flammable liquid with a distinctive odour. (
  • This pyrophoric, colorless liquid is an industrially importantorganoaluminium compound. (
  • Colorless or slight yellow transparent liquid. (
  • a colorless, transparent, poisonous liquid, composed of zinc and ethyl, which takes fire spontaneously on exposure to the atmosphere. (
  • a colorless mobile liquid Zn(CH3)2, produced by the action of methyl iodide on a zinc sodium alloy. (
  • Sodium silicate, also known as water glass or liquid glass, is a colorless compound made from oxides of sodium and silica with varying ratios of SiO2 to Na2O, solids contents, and viscosity. (
  • The substance reacts with metals, oxides and hydroxides to form nitrate salts. (
  • NiO + 2HCl → NiCl 2 + H 2 O. Nickel (II) oxide react with hydrogen chloride to produce nickel (II) chloride and water. (
  • This produces hydrogen cyanide and nitrogen oxides. (
  • Recent scientific evidence has shown the substance hydrogen oxide to pose many extreme dangers to humans. (
  • At the same time, hydrogen oxide withdrawal means certain death. (
  • If you haven't already guessed, hydrogen oxide is the chemical name for water. (
  • calcium carbonate (CaCO 3 ) A colorless or white crystalline compound occurring naturally as the minerals calcite or aragonite in rocks like chalk, limestone, and marble. (
  • Carbon forms two well-known oxides, carbon monoxide , CO, and carbon dioxide , CO 2 . (
  • For example, copper (II) oxide, CuO, and iron (III) oxide, Fe 2 O 3 , are both reduced to the metal by carbon monoxide. (
  • The nitric oxide molecule is a free radical , which is relevant to understanding its high reactivity. (
  • Nitric oxide (NO) is a small highly diffusible gas and a ubiquitous bioactive molecule. (
  • While nitric oxide (NO) was once regarded solely as a poisonous air pollutant, responsible for the formation of photochemical smog and acid rain leading to the destruction of the ozone layer, today it is also appreciated as a molecule essential to human health. (
  • Nitric oxide is the first gas discovered to act as a signaling molecule, a transmitter of important signals to cells in various systems of the human body. (
  • Gadolinium Scandium Oxide is a crystalline solid used as a semiconductor and in photo optic applications. (
  • Phosphorus(III) oxide is a white crystalline solid that smells like garlic and has a poisonous vapour. (
  • 1. A chromatic pigment comprising transparent core particles of titanium dioxide having a mean particle size from 0.01 to 0.1 μm coated thereon with a layer of an oxide of Ni, Co, Cu, Cr, Mn, V, W or a mixture of these oxides wherein the pigment substantially retains the transparency of the core particle. (
  • Nitric oxide also known as nitrogen monoxide is a chemical compound . (
  • Tributyltin oxide (TBTO) is an organotin compound chiefly used as a biocide (fungicide and molluscicide), especially a wood preservative. (
  • Organic compound, colourless flammable gas. (
  • Sodium silicate is a colorless compound of oxides of sodium and silica. (
  • Nitric oxide can contribute to reperfusion injury when excessive amount produced during reperfusion (following a period of ischemia) reacts with superoxide to produce the damaging free radical peroxynitrite. (
  • Chlorine(I) oxide, reacts with water to some extent to yield hypochlorous acid. (
  • Period 3 / Kala 3 - To explain changes in atomic size, electronegativity, metallic properties as well as oxide properties across Period 3 from left to right. (
  • The ammonia is reacted with air to make nitric oxide. (
  • ammonia (NH 3 ) A colorless, pungent gas, used to manufacture fertilizers and a wide variety of nitrogen-containing inorganic and organic chemicals. (
  • For details concerning benzene see the substance sheet for benzene.Toluene, ethylbenzene and the three isomers of xylene are colourless liquids, immiscible with water but miscible with organic solvents. (
  • For example, calcium carbonate (CaCO 3 ) produces carbon dioxide and calcium oxide (CaO). (
  • It is prepared by heating calcium carbonate (e.g., limestone ) in a special lime kiln to about 500°C to 600°C, decomposing it into the oxide and carbon dioxide. (
  • TiO2 -based chromatic pigments are provided by coating core particles of TiO2 having a mean particle size from 0.01 to 0.1 μm with a layer of metal oxide of Ni, Co, Ce, Cu, Cr, Mn, V, W or a mixutre thereof. (
  • The use of internal combustion engines has drastically increased the presence of nitric oxide in the environment. (
  • Nitric oxide may be released by the action of nitric acid on metals, such as in metal etching and pickling, and is a by-product of combustion of substances in fossil fuel plants. (
  • Nitrogen oxides result from fossil fuel combustion. (
  • Nitrogen oxides form when fuel is burned at high temperatures, as in a combustion process. (
  • The production of nitric oxide is elevated in populations living at high-altitudes, which helps these people avoid hypoxia. (
  • Nitrogen oxides are used in the production of nitric acid, lacquers, dyes, and other chemicals. (
  • It is quite difficult to produce pure scandium metal from scandium oxide. (
  • Trace metal impurities most likely cause nitrogen oxides to form in nitric acid and its solutions. (
  • The other two forms are monoclinic and hexagonal: the hexagonal form has the lanthanum(III) oxide structure. (
  • If the nickel is extremely susceptible to HCl, the nickel might be in the form of an oxide. (
  • Does it have something to do with a difference in its oxide form? (
  • and do not form distinctly basic oxides. (