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A saturated water solution, of about 40% formaldehyde by volume or 37% by mass, is called "100% formalin". A small amount of stabilizer, such as methanol, is usually added to suppress oxidation and polymerization. A typical commercial-grade formalin may contain 10–12% methanol in addition to various metallic impurities.
Typically, embalming fluid contains a mixture of formaldehyde, glutaraldehyde, methanol, and other solvents. The formaldehyde content generally ranges from 5–37% and the methanol content may range from 9–56%. In the United States alone, about 20 million liters (roughly 5.3 million gallons) of embalming fluid are used every year. [1]
To the average consumer, formaldehyde may be best known as an embalming agent. But this naturally occurring chemical is a major industrial staple, used in many consumer goods, including cleaning ...
The American Cancer Society states that although quaternium-15 releases formaldehyde, a known carcinogen in laboratory test animals at relatively high doses, because the amount of formaldehyde released from these products is low, it is unclear that avoiding quaternium-15 in cosmetics provides any health benefits. [17]
Formaldehyde, classified as a known human carcinogen, [37] [38] and N-nitrosoglyphosate, have been identified as toxicologically relevant impurities. [39] The FAO specification limits the formaldehyde concentration to a maximum of 1.3 g/kg glyphosate.
The analysis, published in the journal Frontiers in Toxicology, builds upon research published earlier this year, which identified more than 900 chemicals as being potential mammory carcinogens ...
As a result, ethanol is sometimes denatured (adulterated), and made poisonous, by the addition of methanol. The result is known as methylated spirit, "meths" (British use) or "metho" (Australian slang). [14] This is not to be confused with "meth", a common abbreviation for methamphetamine and for methadone in Britain and the United States ...
Formaldehyde is a known carcinogen, for instance being associated with nasopharyngeal cancer and leukemia. [14] [20] [39] This compound also occurs in small amounts as a contaminant in alcoholic beverages, and is chemically similar to the carcinogenic ethanol (alcohol) metabolite acetaldehyde.