Carbon
Carbon Compounds, Inorganic
Culture Media
Carbon Dioxide
Carbon Monoxide
Nanotubes, Carbon
Carbon Monoxide Poisoning
Carbon Isotopes
Carbon Tetrachloride
Carbon Sequestration
Molecular Structure
Carbon Disulfide
Sulfur Compounds
Volatile Organic Compounds
Structure-Activity Relationship
Magnetic Resonance Spectroscopy
Plant Extracts
Carbon Radioisotopes
Biodegradation, Environmental
Carbon Footprint
Stereoisomerism
Nitrogen
Oxidation-Reduction
Drug Evaluation, Preclinical
Chromatography, High Pressure Liquid
Heterocyclic Compounds
Molecular Sequence Data
Inhibitory Concentration 50
Biomass
Gas Chromatography-Mass Spectrometry
Organometallic Compounds
Acetates
Influence of fibre length, dissolution and biopersistence on the production of mesothelioma in the rat peritoneal cavity. (1/109)
A range of respirable man-made mineral fibres were tested for evidence of carcinogenicity by injection into the peritoneal cavity of male SPF Wistar rats; and differences in carcinogenicity were related to the dimensions and biopersistence of the injected fibres. The fibres tested included an amosite asbestos, a silicon carbide whisker, a special purpose glass microfibre, and a range of other man-made vitreous fibres (MMVFs) and refractory ceramic fibres (RCFs) from the TIMA fibre repository. The injected dose of each was designed as the estimated mass required to contain 10(9) fibres > 5 microns in length, as determined by optical microscopy. The numbers of long fibres (> 15 microns) contained in these doses ranged across fibres from 0.1 x 10(9) to 0.8 x 10(9) fibres; the number of long fibres thinner than 0.95 micron ranged from 0.015 x 10(9) to 0.4 x 10(9). The treatment groups contained between 18 and 24 animals. Animals were killed when they showed signs of debilitation. At autopsy, the diagnosis of mesothelioma was usually obvious macroscopically. Otherwise, histological examination of peritoneal organs was used to search for early tumour development. Judged by median survival time, four of the fibre types, in the doses administered, presented higher mesothelioma activity than amosite asbestos. The other fibres tested were less carcinogenic than the amosite. Only a ceramic material derived by extreme heating to simulate the effect of furnace or oven conditions, produced no mesotheliomas. Attempts were made, using regression models, to relate these differences to fibre dimensions and to measures of durability from separate experiments. The results pointed principally to a link with the injected numbers of fibres > 20 microns in length and with biopersistence in the rat lung of fibres longer than 5 microns. Improved quantification of the relative importance of fibre dimensions and biopersistence indices requires experimentation with a range of doses. (+info)Depletion of glutathione and ascorbate in lung lining fluid by respirable fibres. (2/109)
OBJECTIVE: The use of synthetic vitreous fibres has increased along with a decline in the utilisation of asbestos. There remains concern that these synthetic fibres pose a health risk to workers because of the generation of respirable fibres which can enter the lung and cause adverse health effects. An improved understanding of the mechanism of fibre pathogenicity should allow more rational short-term testing regimes for new fibres as they are developed. We hypothesised that carcinogenic fibres have greater free radical activity compared with non-carcinogenic fibres and that they contribute to disease by causing oxidative stress in the lung. We examined a panel of respirable fibres, designated as being carcinogenic or non-carcinogenic based on previous animal studies for ability to deplete antioxidants from lung lining fluid. METHODS: On the basis of inhalation studies, a panel of fibres was divided into three carcinogenic fibres-amosite asbestos, silicon carbide, and refractory ceramic fibre 1 (RCF1) and three non-carcinogenic fibres-man-made vitreous fibre 10 (a glass fibre MMVF10), Code 100/475 glass fibre, and refractory ceramic fibre 4 (RCF4). We measured the levels of glutathione (GSH) and ascorbate, two antioxidants present in lung lining fluid (LLF) after fibre treatment. All of the experiments were carried out at equal fibre number. RESULTS: Fibres had the ability to deplete both GSH and ascorbate from both LLF and pure solutions, an effect which was fibre number dependent. The greatest depletion of antioxidants was observed with the two non-carcinogenic glass fibres, and this effect was observed when A549 lung epithelial cells were treated with fibres. CONCLUSIONS: Our results show that antioxidant depletion in cell free solution and lung lining fluid solely is not a simple indicator of the ability of fibres to cause lung pathology and that other biological events in the lung are involved. (+info)Magnetometric evaluation for the effects of silicon carbide whiskers on alveolar macrophages. (3/109)
Alveolar macrophages are thought to play an important role in fibrogenesis in the lungs caused by various types of exposure to dust. In this experiment, we evaluated the effect of silicon carbide whiskers (SiC) on alveolar macrophages mainly by unique magnetometry and also by established methods such as lactate dehydrogenase (LDH) activity, apoptosis measurement and morphological observations. Alveolar macrophages obtained from Syrian golden hamsters by bronchoalveolar lavages were exposed in vitro to Fe3O4 for 18 hours as an indicator for magnetometry and SiC for experiments. A rapid decrease of the remanent magnetic field, so called "relaxation", was observed after cessation of an external magnetic field in macrophages phagocytizing Fe3O4 alone, while relaxation was delayed in those concurrently exposed to SiC. Release of LDH from SiC-exposed macrophages into the medium was not significantly higher than the controls, but it increased dose-dependently. Apoptosis was recognized in macrophages exposed to 60 micrograms/ml of SiC by the DNA ladder detection method and morphological observations. Electron microscopic examination revealed irregular forms of nuclei and organellas in macrophages exposed to SiC. Magnetometry, LDH release and electron microscopic observation indicated mild cytotoxicity of SiC to alveolar macrophages. (+info)The structure of the digitalislike and natriuretic factors identified as macrocyclic derivatives of the inorganic carbon suboxide. (4/109)
The Natriuretic and Endogenous DigitalisLike Factors (EDLFs) are disclosed to be cyclomeric and macroring closed derivatives of the inorganic carbon suboxide. The macrocyclic cyclohexamer with six carbon suboxide units has a molar mass of 408.2 Da, as previously been found for the EDLF of animal origin. The anhydrous cyclohexameric factor is lipophilic but is transformed into more hydrophilic derivatives by the stepwise addition of water. Based on the present findings, it appears that EDLFs exist in solution as an equilibrium mixture of lipophilic and hydrophilic forms and not as a single chemical substance. This structural assumption better accounts for the earlier observed highly anomalous properties of EDLFs. The simultaneously found higher molar mass (4,100 and 4,900 Da) macrocyclic carbon suboxide derivatives are tentatively identified as the Natriuretic factors. (+info)Evidence of substantial carbon isotope fractionation among substrate, inorganic carbon, and biomass during aerobic mineralization of 1, 2-dichloroethane by Xanthobacter autotrophicus. (5/109)
Carbon isotope fractionation during aerobic mineralization of 1, 2-dichloroethane (1,2-DCA) by Xanthobacter autotrophicus GJ10 was investigated. A strong enrichment of (13)C in residual 1,2-DCA was observed, with a mean fractionation factor alpha +/- standard deviation of 0.968 +/- 0.0013 to 0.973 +/- 0.0015. In addition, a large carbon isotope fractionation between biomass and inorganic carbon occurred. A mechanistic model that links the fractionation factor alpha to the rate constants of the first catabolic enzyme was developed. Based on the model, it was concluded that the strong enrichment of (13)C in 1,2-DCA arises because the first irreversible step of the initial enzymatic transformation of 1,2-DCA consists of an S(N)2 nucleophilic substitution. S(N)2 reactions are accompanied by a large kinetic isotope effect. The substantial carbon isotope fractionation between biomass and inorganic carbon could be explained by the kinetic isotope effect associated with the initial 1,2-DCA transformation and by the metabolic pathway of 1,2-DCA degradation. Carbon isotope fractionation during 1,2-DCA mineralization leads to 1,2-DCA, inorganic carbon, and biomass with characteristic carbon isotope compositions, which may be used to trace the process in contaminated environments. (+info)Short term effect of silicon carbide whisker to the rat lung. (6/109)
We studied the short-term effect of silicon carbide whisker (SiCW) in vivo by instillation and inhalation to the rat lung. SiCW was instilled low dose (2 mg/0.5 ml saline) or high dose (10 mg/ 0.5 ml) intratracheally into the lungs of 25 rats. SiCW was also inhaled to another 25 rats at the average concentration of 10.4 mg/m3 for 1 month. In instillation study, the lung had focal alveolitis with the destruction of alveolar wall especially at 3 days after the instillation, and the lesion remained as an aggregated foci of SiCW at 6 months. The 'inflammation-score' of the instilled group by point counting method of the specimen correspondingly decreased gradually. In inhalation group, a minimum inflammatory change was observed. Collagen deposition in the aggregated foci of SiCW with accumulated alveolar macrophages and neutrophils was not progressive during the observed period. These findings suggest that SiCW may cause a minor effect to the rat lung in 6 months after exposure. (+info)Cancer incidence among workers in the Norwegian silicon carbide industry. (7/109)
The presence of silicon carbide (SiC) fibers in the SiC smelter work environment has suggested a possible cancer hazard. The authors studied cancer incidence among 2,620 men employed for more than 6 months in three Norwegian SiC smelters. Follow-up from 1953 to 1996 revealed an overall excess risk of lung cancer (standardized incidence ratio = 1.9, 95% confidence interval (CI): 1.5, 2.3) and an elevated risk of stomach cancer (standardized incidence ratio = 1.5, 95% CI: 1.1, 2.0). Both standardized incidence ratio and Poisson regression analyses showed that lung cancer risk increased according to cumulative exposure to total dust, SiC fibers, SiC particles, and crystalline silica. The standardized incidence ratio for the upper SiC fiber exposure category was 3.5 (95% CI: 2.1, 5.6) when exposure was lagged by 20 years, while the Poisson regression analysis showed a rate ratio of 4.4 (95% CI: 2.1, 9.0). Smoking did not seem to be an important confounder. The excess risk of lung cancer may be explained by exposure to SiC fibers, but a strong correlation between the different exposures made it difficult to distinguish between them. (+info)Physiological and molecular biological characterization of intracellular carbonic anhydrase from the marine diatom Phaeodactylum tricornutum. (8/109)
A single intracellular carbonic anhydrase (CA) was detected in air-grown and, at reduced levels, in high CO(2)-grown cells of the marine diatom Phaeodactylum tricornutum (UTEX 642). No external CA activity was detected irrespective of growth CO(2) conditions. Ethoxyzolamide (0.4 mM), a CA-specific inhibitor, severely inhibited high-affinity photosynthesis at low concentrations of dissolved inorganic carbon, whereas 2 mM acetazolamide had little effect on the affinity for dissolved inorganic carbon, suggesting that internal CA is crucial for the operation of a carbon concentrating mechanism in P. tricornutum. Internal CA was purified 36.7-fold of that of cell homogenates by ammonium sulfate precipitation, and two-step column chromatography on diethylaminoethyl-sephacel and p-aminomethylbenzene sulfone amide agarose. The purified CA was shown, by SDS-PAGE, to comprise an electrophoretically single polypeptide of 28 kD under both reduced and nonreduced conditions. The entire sequence of the cDNA of this CA was obtained by the rapid amplification of cDNA ends method and indicated that the cDNA encodes 282 amino acids. Comparison of this putative precursor sequence with the N-terminal amino acid sequence of the purified CA indicated that it included a possible signal sequence of up to 46 amino acids at the N terminus. The mature CA was found to consist of 236 amino acids and the sequence was homologous to beta-type CAs. Even though the zinc-ligand amino acid residues were shown to be completely conserved, the amino acid residues that may constitute a CO(2)-binding site appeared to be unique among the beta-CAs so far reported. (+info)Carbon Monoxide Poisoning Symptoms
------------------------------
The symptoms of carbon monoxide poisoning can vary depending on the level and duration of exposure, but they typically include:
* Headache
* Dizziness or nausea
* Confusion
* Slurred speech
* Loss of consciousness
* Seizures
In severe cases, carbon monoxide poisoning can cause brain damage, coma, and even death.
Carbon Monoxide Poisoning Causes
-----------------------------
Carbon monoxide is a byproduct of incomplete combustion of fuels such as gasoline, natural gas, or wood. Sources of carbon monoxide poisoning include:
* Faulty heating systems or water heaters
* Poorly vented appliances like stoves and fireplaces
* Clogged chimneys or vents
* Running cars in enclosed spaces like garages
* Overcrowding with too many people in a small, poorly ventilated space
Diagnosis of Carbon Monoxide Poisoning
----------------------------------
Doctors may suspect carbon monoxide poisoning based on symptoms and medical history. Blood tests can measure the level of carboxyhemoglobin (COHb) in red blood cells, which indicates CO exposure. Chest X-rays or CT scans may also be used to check for signs of lung damage.
Treatment of Carbon Monoxide Poisoning
-----------------------------------
The treatment of carbon monoxide poisoning involves moving the patient to a location with fresh air and administering oxygen therapy to help remove CO from the bloodstream. In severe cases, medication may be given to help stimulate breathing and improve oxygenation of tissues. Hyperbaric oxygen therapy may also be used in some cases.
Prevention of Carbon Monoxide Poisoning
-------------------------------------
Prevention is key when it comes to carbon monoxide poisoning. Some steps you can take to prevent CO poisoning include:
* Installing a carbon monoxide detector in your home
* Regularly inspecting and maintaining appliances like furnaces, water heaters, and chimneys
* Properly venting appliances and ensuring they are installed in well-ventilated areas
* Not running cars or generators in enclosed spaces
* Avoiding overcrowding and ensuring there is adequate ventilation in living spaces
Conclusion
----------
Carbon monoxide poisoning is a serious condition that can be fatal if not treated promptly. It's important to be aware of the sources of CO exposure and take steps to prevent it, such as installing carbon monoxide detectors and regularly maintaining appliances. If you suspect CO poisoning, seek medical attention immediately.
The symptoms of carbon tetrachloride poisoning can vary depending on the level and duration of exposure, but may include:
* Respiratory problems, such as coughing, wheezing, and shortness of breath
* Nausea and vomiting
* Abdominal pain and diarrhea
* Headaches and dizziness
* Confusion and disorientation
* Slurred speech and loss of coordination
* Seizures and coma
If you suspect that you or someone else has been exposed to carbon tetrachloride, it is essential to seek medical attention immediately. Treatment for carbon tetrachloride poisoning typically involves supportive care, such as oxygen therapy and hydration, as well as medications to manage symptoms and remove the toxin from the body. In severe cases, hospitalization may be necessary.
Prevention is key when it comes to carbon tetrachloride poisoning. If you work with or are exposed to CTC, it is important to take safety precautions such as wearing protective clothing and equipment, using proper ventilation, and following all safety protocols. It is also essential to handle the chemical with care and store it in a safe location.
In conclusion, carbon tetrachloride poisoning can be a serious and potentially deadly condition that requires immediate medical attention. If you suspect exposure to CTC, it is crucial to seek medical help right away. By taking safety precautions and being aware of the risks associated with this chemical, you can prevent carbon tetrachloride poisoning and protect your health.
List of inorganic compounds
Metallocarbohedryne
Inorganic compound
Organoiridium compound
Lead citrate
Graphite intercalation compound
Marcetta Y. Darensbourg
Oxalate phosphate
Cyclopentadienylcobalt dicarbonyl
Carbon disulfide
Cyclopentadienyliron dicarbonyl dimer
Organosilicon compound
Heterocumulene
Carbide iodide
Ytterbium(III) nitrate
Metal sulfur dioxide complex
Biodegradation
Tetrahalomethane
Carbonyl group
Carbon tetrachloride
Metabolism
Methyldiborane
Borane carbonyl
Ammonium bicarbonate
Tetraethylammonium chloride
Vanadium(III) oxide
Carbon diselenide
Dicaesium silver hexabromobismuthate
Factitious airs
Protozoan infection
Sulfide
Methanogenesis
Food web
Flexible metal-organic framework
Manganese(II) bromide
Calcite
Phototroph
Oxazoline
Noble gas compound
Praseodymium(III) carbonate
Diagenesis
Xerosere
Air-free technique
Sodium hypochlorite
High-entropy alloy
Blood doping
Dewar-Chatt-Duncanson model
Chemical bond
Oxide
Cyanogen chloride
Potassium ferrocyanide
NASICON
Mercury(I) chloride
Effects of cannabis
Jonathan Coleman (physicist)
Bioluminescence
Intramolecular Heck reaction
Sodium 1,3-dithiole-2-thione-4,5-dithiolate
Ultra-high-temperature ceramics
h2g2 - Carbon and its Inorganic Compounds - Edited Entry
NXP Semiconductors :: Secure Connections for a Smarter
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CDC - NIOSH Pocket Guide to Chemical Hazards -
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NaNH2 Chemical Name: Learn Important Terms and Concept
Hydrogen sulfide1
- Before we discovered this new carbon sink process, the two main known chemotrophic forms were photosynthesis and geothermal chemotrophy - the latter is where bacteria harness inorganic compounds like hydrogen sulfide to fix carbon. (newswise.com)
Arsenic compounds5
- combined with oxygen, chlorine, and sulfur to form inorganic arsenic compounds. (cdc.gov)
- plants combines with carbon and hydrogen to form organic arsenic compounds. (cdc.gov)
- Inorganic arsenic compounds are mainly used to preserve wood. (cdc.gov)
- Many common arsenic compounds can dissolve in Skin contact with inorganic arsenic may cause redness water. (cdc.gov)
- most of of organic arsenic compounds in humans. (cdc.gov)
Polycyclic aromatic hyd1
- During these fire scene examinations, environmental samples were collected for total and respirable dust, metals, hydrogen cyanide , inorganic acids, aldehydes including formaldehyde, polycyclic aromatic hydrocarbons (PAHs), elemental carbon, and volatile organic compounds (VOCs). (cdc.gov)
Biological compounds2
- The atmosphere contains approximately 0.03% carbon dioxide by volume from which a huge variety of biological compounds are derived. (h2g2.com)
- Heterotrophic ( hetero- , -trophic ) organisms, such as animals, most bacteria , and fungi , are not capable of photosynthesis or of producing biological compounds from inorganic sources. (thoughtco.com)
Hydrocarbons2
- Chemistry Ch. 1-2 Chapter 1 Introduction to Chemistry Key Terms Branches of Chemistry Chemistry- the study structure, properties, and composition of substances, and the changes that substances undergo Organic Chemistry- the study of compounds that contain carbon and hydrogen, studies hydrocarbons Inorganic Chemistry- studies all the elements and their compounds except carbon Analytical Chemistry- concerned with the separation, identification and composition of matter. (majortests.com)
- Inorganic compounds that contain carbon as an integral part of the molecule but are not derived from hydrocarbons. (bvsalud.org)
Fixation6
- Ammonia and CO oxidation pathways are enriched in the free-living microbial communities and dissimilatory nitrate reduction to ammonium and H 2 oxidation pathways in the particle-attached, while the Calvin Benson-Bassham cycle is the most prevalent inorganic carbon fixation pathway in both size fractions. (nature.com)
- Carbon dioxide is converted to carbohydrates in a process known as carbon fixation or the Calvin cycle. (thoughtco.com)
- There are whole ecosystems probably relying on this novel microbial carbon fixation process where microbes use the energy obtained from breathing in atmospheric hydrogen gas to turn carbon dioxide from the atmosphere into carbon - in order to grow," she said. (newswise.com)
- The study's lead author, UNSW PhD candidate Angelique Ray, said one of the big questions the team had when they finished their previous study was whether this new process of atmospheric chemosynthesis - also known as carbon fixation or carbon sink - was similarly occurring in other places around the world. (newswise.com)
- The researchers extracted DNA from the soil samples and then sequenced the DNA to detect the target genes responsible for the process of carbon fixation. (newswise.com)
- So, we correlated the target genes for the carbon fixation process against the different sites and found the locations which are drier and lower in nutrients - carbon and nitrogen - had a greater potential to support this process, which made sense. (newswise.com)
Phosphate2
- Glyceraldehyde 3-phosphate dehydrogenase (abbreviated as GAPDH or less commonly as G3PDH) ( EC 1.2.1.12) is an enzyme that catalyzes the sixth step of glycolysis and thus serves to break down glucose for energy and carbon molecules. (bionity.com)
- Finally, a molecule of inorganic phosphate attacks the thioester and forms a tetrahedral intermediate, which then collapses to release 1,3-bisphosphoglycerate, and the thiol group of the enzyme's cysteine residue. (bionity.com)
Substances4
- Although the total number of NPL sites evaluated for these substances is not known, the possibility exists that the number of sites at which tin and organotin compounds are found may increase in the future as more sites are evaluated. (cdc.gov)
- According to Annex XIII of regulation (EC) 1907/2006 a PBT and vPvB assessment shall not apply to inorganic substances, but shall apply to organo-metal. (europa.eu)
- The dissociation and biodegradation in the environment of the substances would result in carbon dioxide, water and hydrated aluminium oxide species. (europa.eu)
- No data are available on the partition coefficient of purely inorganic aluminium compounds as, in accordance with column 2 of REACH Annex VII, the partition coefficient studies do not need to be conducted as the substances are inorganic. (europa.eu)
Monoxide3
- What is the valency of carbon in carbon monoxide? (samacheerkalvi.guru)
- Pollutants of major public health concern include particulate matter, carbon monoxide, ozone, nitrogen dioxide and sulfur dioxide. (who.int)
- We estimated nicotine mouth level intake (MLI) from analyses of little cigar filter butt solanesol levels, brand characteristics, carbon monoxide boost, and puff volume in 48 dual cigarette/cigar users during two repeat bouts of ad lib smoking of three little filtered cigar brands. (cdc.gov)
Dioxide from the atmosphere1
- Sodium amide quickly absorbed water and carbon dioxide from the atmosphere. (vedantu.com)
Metals2
- The C 4+ is not observed but C 4- may exist in compounds which are called carbides formed with highly electropositive metals. (h2g2.com)
- Along with the other first row non-metals, carbon can form C=C double bonds and C≡C triple bonds through sideways overlap of atomic p orbitals and these can be incorporated into the carbon-carbon bonded frameworks of its compounds, giving rigidity since these bonds can't rotate. (h2g2.com)
Sulfur1
- When tin is combined with chlorine, sulfur, or oxygen, it is called an inorganic tin compound. (cdc.gov)
Bacteria1
- Organic tin compounds can be degraded (by exposure to sunlight and by bacteria) into inorganic tin compounds. (cdc.gov)
Labelled carbon dioxide1
- Since the level of cosmic rays is pretty much constant, this labelled carbon dioxide maintains a steady concentration in the atmosphere and is taken up by plants during photosynthesis , thereby incorporating 14 C atoms in their structures. (h2g2.com)
Nutrients2
- Plants play an important role in the cycle of nutrients, specifically carbon and oxygen. (thoughtco.com)
- 4. Rich in organic potassium and food grade mineral elements, scientific ratio of organic and inorganic nutrients can promote fruit expansion and prolong the preservation life. (plant-growthregulators.com)
Alkyl1
- Acetylide ion is a nucleophile and can react with alkyl halide actively forming carbon-carbon bonds. (vedantu.com)
Chemical2
- NaNH 2 is a strong basic compound that is used in many chemical reactions as a catalyst. (vedantu.com)
- What are the chemical reactions of carbon? (samacheerkalvi.guru)
Chemicals1
- Tin is a metal that can combine with other chemicals to form various compounds. (cdc.gov)
Dimethyl1
- If you work in a job that may expose you to arsenic, of methyl and dimethyl compounds can cause diarrhea be aware that you may carry arsenic home on your and damage to the kidneys. (cdc.gov)
Adsorption2
- The adsorption/desorption study was not conducted as (benzoato-O,O')hydroxy(octadecanoato-O,O')aluminium is expected to decompose rapidly to carbon dioxide, water and inorganic aluminium species. (europa.eu)
- As aluminium compounds are abundant in nature the adsorption/desorption of aluminium in the environment is not expected to be scientifically relevant. (europa.eu)
Glucose1
- This is the 6th step of the breakdown of glucose ( glycolysis ), an important pathway of energy and carbon molecule supply located in the cytosol of eukaryotic cells. (bionity.com)
Photosynthesis2
- Photosynthetic organisms, known as photoautotrophs, capture the energy from sunlight and use it to produce organic compounds through the process of photosynthesis. (thoughtco.com)
- A/Prof Ferrari said the researchers' findings meant that microbes which use trace gases as their energy and carbon source to grow - unlike photosynthesis which uses light - was not a process isolated to Antarctica. (newswise.com)
Ionic4
- The chemistry of carbon is almost totally covalent in nature though some Ionic species are known. (h2g2.com)
- Because in metal carboxylates, the metal is only bound to the negatively charged oxygen in the carboxyl group via an ionic bond, 2-ethylhexanoic acid, molybdenum salt is considered as an inorganic substance, and thus a PBT and vPvB assessment is not required. (europa.eu)
- Carbon does not form ionic compounds. (samacheerkalvi.guru)
- Carbon shares electrons only through covalent bonding, hence it does not form ionic compounds. (samacheerkalvi.guru)
Pathway1
- Compound C00118 at KEGG Pathway Database. (bionity.com)
Sunlight1
- Some organisms are capable of capturing the energy from sunlight and using it to produce organic compounds. (thoughtco.com)
Organic carbon2
- Thus it has been estimated that there are of the order of 22 million organic (carbon-based) compounds 1 . (h2g2.com)
- This property of carbon itself is the reason for the presence of large number of organic carbon compounds. (samacheerkalvi.guru)
Covalent3
- Each carbon has three covalent bonds. (samacheerkalvi.guru)
- Catenation is the binding of an element to itself or with other elements through covalent bonds to form an open chain or closed chain compounds. (samacheerkalvi.guru)
- Carbon atom links repeatedly to itself through covalent bond to form linear chain, branched-chain or ring structure. (samacheerkalvi.guru)
Soil4
- There can be tin metal as well as inorganic and organic tin compounds in the air, water, and soil near places where they are naturally present in the rocks, mined, manufactured, or used. (cdc.gov)
- The time each tin compound stays in air, water, or soil differs from compound to compound. (cdc.gov)
- Organic tin compounds stick to soil, sediment, and particles in water. (cdc.gov)
- By looking at the environmental parameters in the soil, that's how we knew there was low carbon, low moisture and other factors at play," she said. (newswise.com)
Water5
- In water, organic tin compounds are mostly attached to particles in water. (cdc.gov)
- Organic tin compounds may also settle out of the water into sediments and may remain unchanged for years. (cdc.gov)
- Organic tin compounds may be taken up into the tissues of animals that live in water containing these compounds. (cdc.gov)
- The amount of the organic compounds in the sample water was much lower compared to the standard value. (slu.se)
- The carbon enzyme organic water-soluble fertilizer is more conducive to the absorption of crops. (plant-growthregulators.com)
Form5
- Ingesting or breathing low levels of inorganic arsenic for It can only change its form. (cdc.gov)
- Tin also can combine with carbon to form organotin compounds. (cdc.gov)
- By investigating places outside Antarctica, we can determine how significant the contribution of this new form of chemotrophy is to the global carbon budget," she said. (newswise.com)
- NaNH 2 is a strong base that reacts with an organic compound to form acetylide as depicted in the given image. (vedantu.com)
- How does carbon form catenated compounds? (samacheerkalvi.guru)
Bonds1
- Unsaturated carbon compounds are called alkenes as they have one or more double bonds between carbon atoms. (samacheerkalvi.guru)
Sodium3
- Sodium silicate is the generic name for a series of compounds derived from soluble sodium silicate glasses. (oxy.com)
- Sodium amide is an inorganic compound made of ammonium and sodium. (vedantu.com)
- Sodium cyanide can be obtained in high yield by mixing sodium amide and carbon. (vedantu.com)
Graphite2
- Carbon makes up 0.08% of the Earth's crust, occurring in its elementary state as graphite, diamond and coal. (h2g2.com)
- There are several known allotropes (natural structural forms of the element) of carbon, which include graphite, diamond, linear acetylenic carbon (LAC) and the fullerenes. (h2g2.com)
Earth's1
- Inorganic tin compounds are found in small amounts in the earth's crust. (cdc.gov)
Atmospheric2
- Aquatic plants and land plants ( flowering plants , mosses, and ferns) help to regulate atmospheric carbon by removing carbon dioxide from the air. (thoughtco.com)
- But now we have found the genes involved in this process are abundant in cold deserts, although we are yet to study hot deserts, our finding probably indicates atmospheric chemosynthesis is contributing to the global carbon budget. (newswise.com)
Forms4
- Carbon is second only to hydrogen in the number of compounds that it forms. (h2g2.com)
- An important feature of the chemistry of carbon and which forms the basis of organic chemistry , is the ability of the element to catenate . (h2g2.com)
- compounds are less toxic than inorganic forms. (cdc.gov)
- Carbon is the most common element which undergoes catenation and forms long-chain compounds. (samacheerkalvi.guru)
Cancer5
- These tests can on Cancer (IARC) has determined that inorganic arsenic is determine if you have been exposed to above-average carcinogenic to humans. (cdc.gov)
- RÉSUMÉ Afin d'atteindre les objectifs de santé fixés par le pays pour 2011-2016, une analyse qualitative de l'exposition aux facteurs de risque de cancer au Qatar a été conduite en 2013. (who.int)
- Les risques de cancer les plus élevés pour les Qatariens proviendraient de facteurs associés aux modes de vie, en particulier l'obésité, la sédentarité et le tabagisme. (who.int)
- It was later decided to include nitions of carcinogens were based on pollution, occupational exposure to a review of lifestyle factors that are the January 2013 list of agents classified carcinogenic compounds, and lifestyle known to influence cancer risk. (who.int)
- This unique approach of making functional nanomaterials incorporate the nucleobase, PMA and metal ions using solid state self-assembly and their anti-cancer applications are considered to be an effective approach for the development of inorganic nucleoside analogue bio-pharmaceutical agents. (bvsalud.org)
Sources2
- In general, organic tin compounds are from human-made sources and do not occur naturally in the environment. (cdc.gov)
- In addition, geopolymer can be synthesized from various sources of waste materials (e.g., fly ash, steel slag) and natural materials (e.g., rice husk, volcanic ash, clay), which lowers its impact on the environment and carbon footprint. (trb.org)
Metal2
Total1
- Because of this, all plants and animals have a minute but measurable quantity of this isotope (1.2 x 10 -10 % of total carbon). (h2g2.com)
Potentially1
- Some people also make a link to the role of carbon dioxide in the potentially devastating consequences of global warming . (h2g2.com)
Natural1
- The magnetic properties of its nucleus enable it to act as an effective natural marker for the characterisation of carbon-containing compounds in 13 C nuclear magnetic resonance (NMR) spectroscopy. (h2g2.com)
High3
Found1
- Tin and organotin compounds have been found in at least 214 and 8, respectively, of the 1,662 current or former NPL sites. (cdc.gov)
Strong1
- Intermolecular Forces Intermolecular Forces The attractions between molecules are not nearly as strong as the intramolecular attractions that hold compounds together. (slideshare.net)
Environment1
- What happens to tin and tin compounds when they enter the environment? (cdc.gov)
Entry1
- In this Entry the inorganic chemistry of carbon is discussed. (h2g2.com)