Alkylmercury Compounds: Organic mercury compounds in which the mercury is attached to an alkyl group.Borates: Inorganic or organic salts and esters of boric acid.Crowdsourcing: Social media model for enabling public involvement and recruitment in participation. Use of social media to collect feedback and recruit volunteer subjects.Fetal Distress: A nonreassuring fetal status (NRFS) indicating that the FETUS is compromised (American College of Obstetricians and Gynecologists 1988). It can be identified by sub-optimal values in FETAL HEART RATE; oxygenation of FETAL BLOOD; and other parameters.EuropeSubstance P: An eleven-amino acid neurotransmitter that appears in both the central and peripheral nervous systems. It is involved in transmission of PAIN, causes rapid contractions of the gastrointestinal smooth muscle, and modulates inflammatory and immune responses.Hazardous Substances: Elements, compounds, mixtures, or solutions that are considered severely harmful to human health and the environment. They include substances that are toxic, corrosive, flammable, or explosive.European Union: The collective designation of three organizations with common membership: the European Economic Community (Common Market), the European Coal and Steel Community, and the European Atomic Energy Community (Euratom). It was known as the European Community until 1994. It is primarily an economic union with the principal objectives of free movement of goods, capital, and labor. Professional services, social, medical and paramedical, are subsumed under labor. The constituent countries are Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden, and the United Kingdom. (The World Almanac and Book of Facts 1997, p842)Metals, Alkali: Metals that constitute group 1(formerly group Ia) of the periodic table. They are the most strongly electropositive of the metals. Note that HYDROGEN is not considered an alkali metal even though it falls under the group 1 heading in the periodic table.Mineral Oil: A mixture of liquid hydrocarbons obtained from petroleum. It is used as laxative, lubricant, ointment base, and emollient.Metals: Electropositive chemical elements characterized by ductility, malleability, luster, and conductance of heat and electricity. They can replace the hydrogen of an acid and form bases with hydroxyl radicals. (Grant & Hackh's Chemical Dictionary, 5th ed)Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Paraffin: A mixture of solid hydrocarbons obtained from petroleum. It has a wide range of uses including as a stiffening agent in ointments, as a lubricant, and as a topical anti-inflammatory. It is also commonly used as an embedding material in histology.Cesium: A member of the alkali metals. It has an atomic symbol Cs, atomic number 50, and atomic weight 132.91. Cesium has many industrial applications, including the construction of atomic clocks based on its atomic vibrational frequency.Noble Gases: Elements that constitute group 18 (formerly the zero group) of the periodic table. They are gases that generally do not react chemically.Thimerosal: An ethylmercury-sulfidobenzoate that has been used as a preservative in VACCINES; ANTIVENINS; and OINTMENTS. It was formerly used as a topical antiseptic. It degrades to ethylmercury and thiosalicylate.Williams Syndrome: A disorder caused by hemizygous microdeletion of about 28 genes on chromosome 7q11.23, including the ELASTIN gene. Clinical manifestations include SUPRAVALVULAR AORTIC STENOSIS; MENTAL RETARDATION; elfin facies; impaired visuospatial constructive abilities; and transient HYPERCALCEMIA in infancy. The condition affects both sexes, with onset at birth or in early infancy.Vaccines: Suspensions of killed or attenuated microorganisms (bacteria, viruses, fungi, protozoa), antigenic proteins, synthetic constructs, or other bio-molecular derivatives, administered for the prevention, amelioration, or treatment of infectious and other diseases.Victoria: A state in southeastern Australia, the southernmost state. Its capital is Melbourne. It was discovered in 1770 by Captain Cook and first settled by immigrants from Tasmania. In 1851 it was separated from New South Wales as a separate colony. Self-government was introduced in 1851; it became a state in 1901. It was named for Queen Victoria in 1851. (From Webster's New Geographical Dictionary, 1988, p1295 & Room, Brewer's Dictionary of Names, p574)Vaccines, Inactivated: Vaccines in which the infectious microbial nucleic acid components have been destroyed by chemical or physical treatment (e.g., formalin, beta-propiolactone, gamma radiation) without affecting the antigenicity or immunogenicity of the viral coat or bacterial outer membrane proteins.Viral Vaccines: Suspensions of attenuated or killed viruses administered for the prevention or treatment of infectious viral disease.Vaccines, Combined: Two or more vaccines in a single dosage form.Neurofibrils: The delicate interlacing threads, formed by aggregations of neurofilaments and neurotubules, coursing through the CYTOPLASM of the body of a NEURON and extending from one DENDRITE into another or into the AXON.TDP-43 Proteinopathies: Diseases characterized by the presence of abnormally phosphorylated, ubiquitinated, and cleaved DNA-binding protein TDP-43 in affected brain and spinal cord. Inclusions of the pathologic protein in neurons and glia, without the presence of AMYLOID, is the major feature of these conditions, thus making these proteinopathies distinct from most other neurogenerative disorders in which protein misfolding leads to brain amyloidosis. Both frontotemporal lobar degeneration and AMYOTROPHIC LATERAL SCLEROSIS exhibit this common method of pathogenesis and thus they may represent two extremes of a continuous clinicopathological spectrum of one disease.Alzheimer Disease: A degenerative disease of the BRAIN characterized by the insidious onset of DEMENTIA. Impairment of MEMORY, judgment, attention span, and problem solving skills are followed by severe APRAXIAS and a global loss of cognitive abilities. The condition primarily occurs after age 60, and is marked pathologically by severe cortical atrophy and the triad of SENILE PLAQUES; NEUROFIBRILLARY TANGLES; and NEUROPIL THREADS. (From Adams et al., Principles of Neurology, 6th ed, pp1049-57)tau Proteins: Microtubule-associated proteins that are mainly expressed in neurons. Tau proteins constitute several isoforms and play an important role in the assembly of tubulin monomers into microtubules and in maintaining the cytoskeleton and axonal transport. Aggregation of specific sets of tau proteins in filamentous inclusions is the common feature of intraneuronal and glial fibrillar lesions (NEUROFIBRILLARY TANGLES; NEUROPIL THREADS) in numerous neurodegenerative disorders (ALZHEIMER DISEASE; TAUOPATHIES).Tauopathies: Neurodegenerative disorders involving deposition of abnormal tau protein isoforms (TAU PROTEINS) in neurons and glial cells in the brain. Pathological aggregations of tau proteins are associated with mutation of the tau gene on chromosome 17 in patients with ALZHEIMER DISEASE; DEMENTIA; PARKINSONIAN DISORDERS; progressive supranuclear palsy (SUPRANUCLEAR PALSY, PROGRESSIVE); and corticobasal degeneration.Neurodegenerative Diseases: Hereditary and sporadic conditions which are characterized by progressive nervous system dysfunction. These disorders are often associated with atrophy of the affected central or peripheral nervous system structures.Inclusion Bodies: A generic term for any circumscribed mass of foreign (e.g., lead or viruses) or metabolically inactive materials (e.g., ceroid or MALLORY BODIES), within the cytoplasm or nucleus of a cell. Inclusion bodies are in cells infected with certain filtrable viruses, observed especially in nerve, epithelial, or endothelial cells. (Stedman, 25th ed)Environmental Health: The science of controlling or modifying those conditions, influences, or forces surrounding man which relate to promoting, establishing, and maintaining health.ArchivesBiological Science Disciplines: All of the divisions of the natural sciences dealing with the various aspects of the phenomena of life and vital processes. The concept includes anatomy and physiology, biochemistry and biophysics, and the biology of animals, plants, and microorganisms. It should be differentiated from BIOLOGY, one of its subdivisions, concerned specifically with the origin and life processes of living organisms.Periodicals as Topic: A publication issued at stated, more or less regular, intervals.Methylmercury Compounds: Organic compounds in which mercury is attached to a methyl group.PubMed: A bibliographic database that includes MEDLINE as its primary subset. It is produced by the National Center for Biotechnology Information (NCBI), part of the NATIONAL LIBRARY OF MEDICINE. PubMed, which is searchable through NLM's Web site, also includes access to additional citations to selected life sciences journals not in MEDLINE, and links to other resources such as the full-text of articles at participating publishers' Web sites, NCBI's molecular biology databases, and PubMed Central.Environmental Medicine: Medical specialty concerned with environmental factors that may impinge upon human disease, and development of methods for the detection, prevention, and control of environmentally related disease.GermanyBlood Protein Electrophoresis: Electrophoresis applied to BLOOD PROTEINS.Hyperlipoproteinemias: Conditions with abnormally elevated levels of LIPOPROTEINS in the blood. They may be inherited, acquired, primary, or secondary. Hyperlipoproteinemias are classified according to the pattern of lipoproteins on electrophoresis or ultracentrifugation.Digestive System: A group of organs stretching from the MOUTH to the ANUS, serving to breakdown foods, assimilate nutrients, and eliminate waste. In humans, the digestive system includes the GASTROINTESTINAL TRACT and the accessory glands (LIVER; BILIARY TRACT; PANCREAS).Congresses as Topic: Conferences, conventions or formal meetings usually attended by delegates representing a special field of interest.Digestive System Neoplasms: Tumors or cancer of the DIGESTIVE SYSTEM.Netherlands: Country located in EUROPE. It is bordered by the NORTH SEA, BELGIUM, and GERMANY. Constituent areas are Aruba, Curacao, Sint Maarten, formerly included in the NETHERLANDS ANTILLES.Pregnancy Complications: Conditions or pathological processes associated with pregnancy. They can occur during or after pregnancy, and range from minor discomforts to serious diseases that require medical interventions. They include diseases in pregnant females, and pregnancies in females with diseases.Maternal Mortality: Maternal deaths resulting from complications of pregnancy and childbirth in a given population.Pregnancy: The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.Diagnostic Errors: Incorrect diagnoses after clinical examination or technical diagnostic procedures.Pregnancy Complications, Cardiovascular: The co-occurrence of pregnancy and a cardiovascular disease. The disease may precede or follow FERTILIZATION and it may or may not have a deleterious effect on the pregnant woman or FETUS.Pelvic Girdle Pain: Discomfort associated with the bones that make up the pelvic girdle. It occurs frequently during pregnancy.Puerperal Disorders: Disorders or diseases associated with PUERPERIUM, the six-to-eight-week period immediately after PARTURITION in humans.BooksAutistic Disorder: A disorder beginning in childhood. It is marked by the presence of markedly abnormal or impaired development in social interaction and communication and a markedly restricted repertoire of activity and interest. Manifestations of the disorder vary greatly depending on the developmental level and chronological age of the individual. (DSM-V)Anniversaries and Special Events: Occasions to commemorate an event or occasions designated for a specific purpose.Book SelectionCeremonial Behavior: A series of actions, sometimes symbolic actions which may be associated with a behavior pattern, and are often indispensable to its performance.New YorkBook Reviews as Topic: Critical analyses of books or other monographic works.

Epidemiology of organomercury poisoning in Iraq. III. Clinical features and their changes with time. (1/5)

Three categories of mercury poisoning were defined in the survey described by Al-Mufti et al. (see page 23) and the age-specific incidence rates for these are given. Persons with physical signs consistent with a diagnosis of organomercury poisoning were allocated to categories of severe disability or mild/moderate disability. However, the largest category consisted of persons who had symptoms but no readily elicitable physical signs at the time of the survey. These symptoms followed a consistent pattern with paraesthesia involving the lips and/or circumoral region or trunk and difficulty with walking, described as weakness or unsteadiness of the legs, and in some cases repeated falls, forming the most commonly occurring symptom complex. Mean maximum hair mercury levels differentiated this group very clearly from the group with no symptoms of mercury poisoning. Very few people in the area of low exposure complained of such symptoms; where they did occur they were less well related to the time of the outbreak and showed little tendency to improve. Most people reported improvement in their symptoms by the time of the survey, with more improvement in some symptoms than in others. However, it is not known whether those people with symptoms only at the time of the survey had had at an earlier stage mild signs which had cleared. It was thought unlikely that further substantial improvement would occur in those persons with disability at the time of the survey.  (+info)

Intoxication due to alkylmercury-treated seed--1971-72 outbreak in Iraq: clinical aspects. (2/5)

Sixty-six hospitalized patients suffering from chronic methylmercury poisoning were examined in Baghdad during 1972. The poisoning was attributed to consumption of home-made bread prepared from seed wheat treated with mercurial fungicide. The age incidence ranged between 4 and 70 years.Of the various clinical features encountered, neurological symptoms and signs were predominant and included muscular weakness, numbness, unsteady gait, paraesthesia, dysarthria, mental disturbances and, in severe cases, blindness, partial deafness, stupor, coma, and death. Involvement of the cardiovascular, urinary, gastrointestinal and haemopoietic systems, which was commonly encountered in ethylmercury poisoning in the 1960 outbreak in Iraq, was unusual.The severity of symptoms and signs was, broadly speaking, dose-dependent; high exposure led to severe clinical manifestations, but variations existed. Criteria, based on the clinical manifestations, were set for grading the severity of cases. The series included 2 asymptomatic cases, 20 mild, 20 moderate, 14 severe, and 10 very severe. In the latter group 5 patients died from failure of the central nervous system.The severely poisoned patients died irrespective of the medical treatment received. After 2 years of observation, most patients graded as mild or moderate cases lost their symptoms completely. Severe cases improved slowly, although ataxia, diminution of visual field and acuity and paraesthesia were still present. Thus, the previously accepted view that neurological signs were irreversible has been disproved.  (+info)

Clinical observations on treatment of alkylmercury poisoning in hospital patients. (3/5)

Twenty-six patients suffering from methylmercury poisoning were treated by different therapeutic regimes. Seven received penicillamine or N-acetyl-d-L-penicillamine, 10 were treated with dimercaprol sulfonate and 9, who could not be treated, were given a placebo and were used as controls. Penicillamine, N-acetyl-d-L-penicillamine, and dimercaprol sulfonate reduced the blood level of mercury and increased its urinary excretion. No appreciable clinical improvement was noticed among the severe or very severe cases, while mild or moderate cases improved clinically irrespective of the treatment given.  (+info)

Dimerization of papain induced by mercuric chloride and a bifunctional organic mercurial. (4/5)

The bifunctional mercurial meso-1,4-bis(acetatomercuri)-2,3-diethoxybutane and mercuric chloride are capable of dimerizing papain, by the attachment of the thiol group of two molecules of papain to each molecule of reagent. This is evident from the titration data, gel filtration and sedimentation equilibrium. The conformational change of papain necessary for this reaction is discussed.  (+info)

Synthesis, structure, and reactivity of two-coordinate mercury alkyl compounds with sulfur ligands: relevance to mercury detoxification. (5/5)

 (+info)

TY - JOUR. T1 - The synthesis and molecular structure of the first two-coordinate, dinuclear σ-bonded mercury(I) RHgHgR compound. AU - Bravo-Zhivotovskii, Dmitry. AU - Yuzefovich, Michael. AU - Bendikov, Michael. AU - Klinkhammer, Karl. AU - Apeloig, Yitzhak. PY - 1999/4/19. Y1 - 1999/4/19. N2 - A linear Si-Hg-Hg-Si arrangement and a Hg-Hg distance of 265.69 pm are exhibited by the first two-coordinate, dinuclear σ-bonded organomercury(I) compound 1. It was formed unexpectedly in the reaction of two equivalents of the silane (Me3SiMe2Si)3SiH with tBu2Hg. In contrast if the reagents are allowed to react in a 1:1 ratio the expected mercury(II) compound (Me3SiMe2Si)3SiHgtBu is obtained.. AB - A linear Si-Hg-Hg-Si arrangement and a Hg-Hg distance of 265.69 pm are exhibited by the first two-coordinate, dinuclear σ-bonded organomercury(I) compound 1. It was formed unexpectedly in the reaction of two equivalents of the silane (Me3SiMe2Si)3SiH with tBu2Hg. In contrast if the reagents are allowed to ...
Reactions of the solution stable, two-coordinate hydrido-tetrylenes, :E(H)(L†) (E = Ge or Sn; L† = -N(Ar†)(SiPri3); Ar† = C6H2{C(H)Ph2}2Pri-2,6,4), with a variety of unactivated cyclic and acyclic alkenes, and one internal alkyne, lead to the rapid and regiospecific hydrometallation of the unsaturated substr RACI100: Celebrating Australian Chemistry
Addy, DA and Pierce, GA and Vidovic, D and Mallick, D and Jemmis, ED and Goicoechea, JM and Aldridge, S (2010) Generation of Cationic Two-Coordinate Group-13 Ligand Systems by Spontaneous Halide Ejection: Remarkably Nucleophile-Resistant (Dimethylamino)borylene Complexes. In: Journal of the American Chemical Society, 132 (13). pp. 4586-4588. ...
Research in the Widenhoefer group is directed toward the development and mechanistic analysis of new organotransition metal-catalyzed transformations for application in the synthesis of functionalized organic molecules. In particular, our group has a long-standing interest in the functionalization of C-C multiple bonds with carbon and heteroatom nucleophiles catalyzed by electrophilic late transition metal complexes, with a recent focus on the synthetic and mechanistic aspect of gold(I) pi-activation catalysis. Current areas of inquiry include the following: 1) Gold(I) and Pt(II)-catalyzed hydroamination of alkenes an allenes. 2) Gold(I)-catalyzed dehydrative amination of underivatized allylic alcohols. 3) Synthesis and study of cationic, two-coordinate gold pi-complexes. 4) Evaluating the role of bis(gold) complexes in gold pi-activation catalysis. More detailed descriptions of these research projects can be found at our group web page.. ...
Research in the Widenhoefer group is directed toward the development and mechanistic analysis of new organotransition metal-catalyzed transformations for application in the synthesis of functionalized organic molecules. In particular, our group has a long-standing interest in the functionalization of C-C multiple bonds with carbon and heteroatom nucleophiles catalyzed by electrophilic late transition metal complexes, with a recent focus on the synthetic and mechanistic aspect of gold(I) pi-activation catalysis. Current areas of inquiry include the following: 1) Gold(I) and Pt(II)-catalyzed hydroamination of alkenes an allenes. 2) Gold(I)-catalyzed dehydrative amination of underivatized allylic alcohols. 3) Synthesis and study of cationic, two-coordinate gold pi-complexes. 4) Evaluating the role of bis(gold) complexes in gold pi-activation catalysis. More detailed descriptions of these research projects can be found at our group web page.. ...
Ag2O features linear, two-coordinate Ag centers linked by tetrahedral oxides. It is isostructural with Cu2O. It "dissolves" in solvents that degrade it. It is slightly soluble in water due to the formation of the ion Ag(OH)2− and possibly related hydrolysis products.[11] It dissolves in ammonia solution to give soluble derivatives.[citation needed] A slurry of Ag2O is readily attacked by acids: ...
See also the category Nitrogen compounds. The main neutral hydride of nitrogen is ammonia (NH3), although hydrazine (N2H4) is also commonly used. Ammonia is more basic than water by 6 orders of magnitude. In solution ammonia forms the ammonium ion (NH4+). Liquid ammonia (b.p. 240 K) is amphiprotic (displaying either Brønsted-Lowry acidic or basic character) and forms ammonium and the less common amide ions (NH2-); both amides and nitride (N3-) salts are known, but decompose in water. Singly, doubly, triply and quadruply substituted alkyl compounds of ammonia are called amines (four substitutions, to form commercially and biologically important quarternary amines, results in a positively charged nitrogen, and thus a water-soluble, or at least amphiphilic, compound). Larger chains, rings and structures of nitrogen hydrides are also known, but are generally unstable. N22+ is another polyatomic cation as in hydrazine. Other classes of nitrogen anions (negatively charged ions) are the poisonous ...
Looking for RICCA CHEMICAL Mercuric Chloride,Saturated (45E604)? Graingers got your back. Price:$49.50. Easy ordering & convenient delivery. Log-in or register for your pricing.
Positive ion electrospray mass spectrometry (MS) has been used to investigate the interaction of Hg2+, [MeHg]+ and [PhHg]+ cations with cysteine (Cys), glutathione (GSH) and a 27-residue polypeptide (Pp) containing one cysteinyl sulfur located at the N-terminus. MSIMS experiments showed that organomercury adduction occurs primarily at the sulfhydryl group, with some evidence for isomeric species in which the organomercury cation is bound to either an amino or a carboxylic group. Following Ellman modification of GSH and Pp, the maximum number of adducted organomercury cations was reduced by 2 and 1, respectively, indicating a 2:1 and a 1:1 interaction between [RHg]+ and the cysteinyl sulfur. Unlike [PhHg]+, [MeHg]+ showed an almost exclusive affinity for the cysteinyl sulfur of GSH and Pp, Both Cys and GSH reacted with Hg2+ to form polynuclear species. Collisional activation mass spectra of the [2Cys + Hg -H]+ ion indicated that the Hg(II) was most probably bridged between the two cysteinyl ...
Prenatal exposure to organomercury, thimerosal, persistently impairs the serotonergic and dopaminergic systems in the rat brain: Implications for association with developmental disorders (See study at Prenatal thimerosal and neurotransmitter imbalances in rats) Michiru Ida-Eto a,*, Akiko Oyabu a, Takeshi Ohkawara...
Business Directory for Mercuric Chloride Suppliers in Nagpur - Get contact details of Mercuric Chloride Manufacturers, Wholesale Mercuric Chloride Exporters, Best Mercuric Chloride Traders & Distributors Across the Nagpur.
PINKTO CHEMICALS is a leading manufacturer, Supplier and exporter of highest purity grades Mercuric Chloride (AR) based in Kolkata, India.
Falcons quarterback Matt Ryan, who injured his left thumb against the Saints, was listed on the teams official injury report, but he fully participated in practice on Wednesday.
ISBN 978-1-84755-177-1. Aschner, M.; Onishchenko, N.; Ceccatelli, S. (2010). Toxicology of Alkylmercury Compounds. Metal Ions ... This compound on heating releases dichlorocarbene: C6H5HgCCl3 → C6H5HgCl + CCl2 Organomercury compounds are versatile synthetic ... A general synthetic route to organomercury compounds entails alkylation with Grignard reagents and organolithium compounds. ... The compound is slightly soluble in ethanol and soluble in ether. Similarly, diphenylmercury (m.p. 121-123 °C) can be prepared ...
As such, they have to be made by reacting alkylmercury compounds with sodium or potassium metal in inert hydrocarbon solvents. ... Compounds with the group 13 elementsEdit. The intermetallic compounds of the alkali metals with the heavier group 13 elements ( ... CompoundsEdit. The alkali metals form complete series of compounds with all usually encountered anions, which well illustrate ... Caesium compounds are rarely encountered by most people, but most caesium compounds are mildly toxic. Like rubidium, caesium ...
It does, however, remove inorganic mercury from the kidneys; but is not useful in the treatment of alkylmercury or ... Its original name reflects its origins as a compound secretly developed by British biochemists at Oxford University during ...
... they have to be made by reacting alkylmercury compounds with sodium or potassium metal in inert hydrocarbon solvents. While ... Caesium compounds are rarely encountered by most people, but most caesium compounds are mildly toxic. Like rubidium, caesium ... Organometallic compounds of the higher alkali metals are even more reactive than organosodium compounds and of limited utility ... Unlike the organolithium compounds, the organometallic compounds of the heavier alkali metals are predominantly ionic. The ...
... alkylmercury compounds MeSH D02.691.750.100.229 --- chlormerodrin MeSH D02.691.750.100.347 --- ethylmercury compounds MeSH ... trialkyltin compounds MeSH D02.691.850.900.910 --- triethyltin compounds MeSH D02.691.850.900.950 --- trimethyltin compounds ... mustard compounds MeSH D02.455.526.728.468 --- mustard gas MeSH D02.455.526.728.650 --- nitrogen mustard compounds MeSH D02.455 ... bephenium compounds MeSH D02.092.877.096.333 --- bretylium compounds MeSH D02.092.877.096.333.150 --- bretylium tosylate MeSH ...
The first case of alkylmercury poisoning was admitted to hospital on 21 December. By 26 December, the hospital had issued a ... in both cases due to ethylmercury compounds. Among the recommendations made after the 1960 incident had been to colour any ... Over 9-13 November, a Conference on Intoxication due to Alkylmercury-Treated Seed was held in Baghdad. It supported the ...
Mason, R. P.; Fitzgerald, W. F. (1990-10-04). "Alkylmercury species in the equatorial Pacific". Nature. 347 (6292): 457-459. ... Khan, MA; Wang, F (2009). "Mercury-selenium compounds and their toxicological significance: Toward a molecular understanding of ... Mercury and compounds Fact Sheet Methylmercury-in-fish exposure calculator provided by GotMercury.Org, which uses FDA mercury ...
Determination of alkylmercury compounds in water - Method using gas chromatography-mass spectrometry (GC-MS) after phenylation ... Water quality - Determination of alkylmercury compounds in water - Method using gas chromatography-mass spectrometry (GC-MS) ...
Alkyl mercury poisoning in humans. Report of an outbreak. JAMA 1972;220:1439-42. CrossRefexternal icon PubMedexternal icon ... Poisoning by methyl mercury compounds. Q J Med 1940;9:193-214. ... an organic mercury compound. Thus, organic mercury poisoning ... lower 12,000 ppm mercury content of the cream in this case underscores the far higher toxicity of organic mercury compounds. ...
alkyl mercury compounds,. - alveolus dust,. - aromatic nitro and amino compounds,. - arsenic and arsenic compounds, ... 2. Activities exposing workers to lead or inorganic lead compounds;. 3. Activities exposing workers to high temperature clouds ... i) activities involving exposure to lead and inorganic lead compounds and an air concentration of 0.075 milligrams per cubic ... h) activities involving exposure to lead and inorganic lead compounds exceeding an air concentration of 0.075 milligrams per ...
... alkyl mercury compound. ... Properties vary depending upon the specific (organo) alkyl mercury ...
ISBN 978-1-84755-177-1. Aschner, M.; Onishchenko, N.; Ceccatelli, S. (2010). Toxicology of Alkylmercury Compounds. Metal Ions ... This compound on heating releases dichlorocarbene: C6H5HgCCl3 → C6H5HgCl + CCl2 Organomercury compounds are versatile synthetic ... A general synthetic route to organomercury compounds entails alkylation with Grignard reagents and organolithium compounds. ... The compound is slightly soluble in ethanol and soluble in ether. Similarly, diphenylmercury (m.p. 121-123 °C) can be prepared ...
Categories: Alkylmercury Compounds Image Types: Photo, Illustrations, Video, Color, Black&White, PublicDomain, ...
An alkylmercury compound (approximately 49% mercury by weight) used as an antiseptic and antifungal agent.. ...
Nose, K. (1969) Studies on the Toxicity of Low Alkyl Mercury Compounds. Japanese Journal of Hygiene, 24, 359-367. https://doi. ... Thimerosal is an organic compound that contains 50% ethylmercury by weight, and is an antibacterial compound that has been used ... Mercury-containing compounds were previously used in a variety of medicinal agents in the 1950s and 1960s, and were frequently ... and Its Relationship to the Ingestion of Seafood Contaminated by Mercurial Compounds. World Neurology, 1, 370-375. ...
... and alkylmercury compounds. The remarkable similarity in LD50s of these various types of mercury compound is probably due to ... Techniques for the identification and measurement of alkylmercury compounds in the presence of other compounds of mercury have ... Purity of compounds 2.3. Sampling and analysis 2.3.1. Sample collection 2.3.2. Analytical methods 2.3.3. Analysis of alkyl ... Aryl- and alkylmercury compounds can all be degraded in the environment by chemical and physical processes and by biologically ...
Mercury compounds (e.g., alkyl mercury) are extremely toxic and must be handled with extreme care. ... Hydrocarbons and Volatile Organic Compounds. These compounds are combustible or flammable and can irritate the skin. Used in a ... Should these compounds be needed, only the quantity needed for experiments should be ordered so that there is no need for ... An oxidizing agent is a substance that causes oxidation, or the loss of electrons from an atom, compound, or molecule. A ...
There are a number of mechanisms by which alkylmercury compounds cause toxic action in the body. Collectively, published ... There are a number of mechanisms by which alkylmercury compounds cause toxic action in the body. Collectively, published ... Clarkson TW, Magos L (2006) The toxicology of mercury and its chemical compounds. Crit Rev Toxicol 36(8):609-662Google Scholar ... Hughes WL (1957) A physiochemical rationale for the biologic activity of mercury and its compounds. Ann N Y Acad Sci 65:454-460 ...
Mercury compounds, including inorganic mercury compounds, alkyl mercury compounds, and alkyloxyalkyl and aryl mercury compounds ...
Mercury compounds, including inorganic mercury compounds, alkyl mercury compounds and alkyloxyalkyl and aryl mercury compounds ... Lead and its compounds). In these cases, Infocards may not identify all substances in the group.Therefore it does not ...
Mercury compounds, including inorganic mercury compounds, alkyl mercury compounds and alkyloxyalkyl and aryl mercury compounds ...
Organic mercury exists as short chain alkyl-mercury compounds and long chain aryl-mercury compounds. Methylmercury, a short ... Other sources of organic mercury exposures include contaminated grain seeds (where the organic mercury compound can be used as ... these notorious inorganic mercury compounds were used as treatment for many ailments such as syphilis and even as teething ... chain compound, is the most commonly encountered organic mercury and exposure is primarily through seafood consumption. ...
Mercury compounds, including inorganic mercury compounds, alkyl mercury compounds and alkyloxyalkyl and aryl mercury compounds ... organic compounds of mercury with the exception of those specified elsewhere in this Annex - - Expert judgement ...
Nerve tissue damage is the major pathologic feature of exposure to alkyl-mercury-compounds. Chronic effects include ... In human beings, all mercury compounds cause shock, cardiovascular collapse, and acute renal failure, skin damage including ... Contract-210-77-0120; NIOSH-Contract; Organo-mercury-compounds; Heavy-metals; Nervous-system-disorders; Neuromotor-disorders; ... compounds cause skin necrosis in animals after acutely toxic subcutaneous injections. ...
Known sources of Hg in soil e.g. mercury-in-bulb thermometers used in hospitals; alkyl mercury compounds especially methyl ... Many of these compounds have carcinogenic and mutagenic activities and present a hazard for human health [61]. In humans, heavy ... However, Cadmium compounds being of very low solubility in water will have little downward movement and accumulate in the ... DDT breaks down into the related compounds; DDE and DDD. In the environment, DDT and its metabolites have a half life of 10 to ...
Quecksilber-Alkylverbindungen durch Elektrolyse konjugiert ungesättigter Ketone (Alkylmercury compounds from electrolysis of ... Eine neue Methode zur Darstellung von Verbindungen zweiwertiger Erden (A new method for the preparation of compounds of ... II (The effect of inhibitors on the polarographic reduction of organic compounds. II). Ludwig Holleck, Bertel Kastening, R. D. ... The effect of surface-active agents on the polarographic reduction waves of aromatic nitro compounds. Ludwig Holleck, Herbert J ...
As such, they have to be made by reacting alkylmercury compounds with sodium or potassium metal in inert hydrocarbon solvents. ... Compounds with the group 13 elementsEdit. The intermetallic compounds of the alkali metals with the heavier group 13 elements ( ... CompoundsEdit. The alkali metals form complete series of compounds with all usually encountered anions, which well illustrate ... Caesium compounds are rarely encountered by most people, but most caesium compounds are mildly toxic. Like rubidium, caesium ...
Organo (alkyl) mercury compounds may cause damage to the central nervous system and are irritants of the eyes, respiratory ... Next in our cavalcade of organic compounds is a class of compounds which have single bonds and which contain the elements ... The alkyl mercury halides are irritating to the eyes, upper respiratory tract, and skin and may cause severe skin rash and ... The alkyl mercury halides are irritating to the eyes, mucous membranes, and skin and may cause severe dermatitis and burns; ...
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds in Academic Press, New York, 1970. [all data] ... Measurements of the vapour pressures of some alkylmercury halides. The latent heats of sublimation of methyl- and ethyl- ... Pedley, J.B.; Rylance, J., Computer Analysed Thermochemical Data: Organic and Organometallic Compounds, University of Sussex, ... Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/ ...
When it comes to injecting newborns and infants with large doses of short-chain alkyl mercury compounds though, this is where I ...
It does, however, remove inorganic mercury from the kidneys; but is not useful in the treatment of alkylmercury or ... Its original name reflects its origins as a compound secretly developed by British biochemists at Oxford University during ...
... in horses have been reported to be due to ingestion of grains treated with fungicidal alkylmercury compounds. ... The indications for a blistering compound (according to the O.R. Adams Lameness In Horses (3rd Ed) include:. 1. Joints that ... Last week it was brought to my attention that the Food and Drug Administration recalled a blistering compound, Miracle Leg ... Last week it was brought to my attention that the Food and Drug Administration recalled a blistering compound, Miracle Leg ...
  • The inadequacy of this approach is obvious for pollutants that may reach man by several pathways, as is the case with lead, cadmium, and some other metals, and certain persistent organic compounds. (inchem.org)
  • A common application of the compounds of sodium is the sodium-vapour lamp , which emits light very efficiently. (wikipedia.org)
  • The exact chemical composition of potassium and sodium compounds, and the status as chemical element of potassium and sodium, was not known then, and thus Antoine Lavoisier did not include either alkali in his list of chemical elements in 1789. (wikipedia.org)
  • Greenway, Gillian M. and Barnett, Neil W. 1989, Optimisation of an atmospheric pressure helium microwave-induced plasma coupled with capillary gas chromatography for the determination of alkyllead and alkylmercury compounds , Journal of analytical atomic spectrometry , vol. 4, no. 8, pp. 783-787, doi: 10.1039/JA9890400783. (edu.au)
  • citation needed] Its original name reflects its origins as a compound secretly developed by British biochemists at Oxford University during World War II as an antidote for lewisite, a now-obsolete arsenic-based chemical warfare agent. (wikipedia.org)
  • Instead, the fly ash should be treated by an intermediate treatment (in order to prevent heavy metals from dissolution), which is either melt-solidification, cement solidification, chemical treatment, or extraction procedure with acid or other compounds. (sagasiki-kankyo.co.jp)
  • In medicinal chemistry, bioisosteres are chemical where to buy sibutramine 10mg online in uk substituents or groups with similar physical or chemical properties which produce broadly similar biological properties to another chemical compound. (sexjuguetes.com)
  • Kiffe M, Christen P, Arni P. Characterization of P. Characterization of cytotoxic and genotoxic effects of different compounds in CHO K5 cells with the comet assay (single cell gel electrophoresis assay). (1796web.com)
  • Last week it was brought to my attention that the Food and Drug Administration recalled a blistering compound, Miracle Leg Paint, due to the potential for human and horse poisoning.Last week it was brought to my attention that the Food and Drug Administration recalled a blistering compound, Miracle Leg Paint, due to the potential for human and horse poisoning. (horsecity.com)