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The original edition, known as the Toxic Substances List was published on June 28, 1971, and included toxicological data for approximately 5,000 chemicals. The name changed later to its current name Registry of Toxic Effects of Chemical Substances. In January 2001 the database contained 152,970 chemicals.
Large scale applications of alkyl bromides exploit their toxicity, which also limits their usefulness. Methyl bromide is also an effective fumigant, but its production and use are controversial. Alkyl iodides No large scale applications are known for alkyl iodides. Methyl iodide is a popular methylating agent in organic synthesis ...
However, Halon 1301 fire suppression is not completely non-toxic; very high temperature flame, or contact with red-hot metal, can cause decomposition of Halon 1301 to toxic byproducts. The presence of such byproducts is readily detected because they include hydrobromic acid and hydrofluoric acid , which are intensely irritating.
In 40 CFR 156.62, the EPA established four Toxicity Categories for acute hazards of pesticide products, with "Category I" being the highest toxicity category (toxicity class). Most human hazard, precautionary statements, and human personal protective equipment statements are based upon the Toxicity Category of the pesticide product as sold or ...
Halocarbon compounds are chemical compounds in which one or more carbon atoms are linked by covalent bonds with one or more halogen atoms (fluorine, chlorine, bromine or iodine – group 17) resulting in the formation of organofluorine compounds, organochlorine compounds, organobromine compounds, and organoiodine compounds.
A study by researchers at the University of California, Los Angeles, published last year claimed that long-term fire retardants contained heavy toxic metals. The manufacturer of Phos-Chek, which ...
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The toxicity of the individual congeners may vary by orders of magnitude. With the TEFs, the toxicity of a mixture of dioxins and dioxin-like compounds can be expressed in a single number – the toxic equivalency (TEQ). It is a single figure resulting from the product of the concentration and individual TEF values of each congener. [1]