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Feedback About wiseGEEK Login <br /> wiseGEEK <br /> clear answers for common questions <br /> What Is Formalin? Category: I Science <br /> Related Links Why Does Well WaterSmell Basic Health Water Tissue Concentration <br /> Formalin is a solution in water of the gas formaldehyde (CH20). <br /> Formalin Tissue A saturated solution contains about 40% by volume — or 37% <br /> Formalin Production by weight — of the gas, plus a small amount of a stabilizer, <br /> Formalin usually 10-12% methanol; this prevents polymerization. The <br /> Formalin Cancer liquid is used as an embalming fluid and for the preservation of <br /> Formalin Test animal specimens and tissue samples. It is also used, generally <br /> Benzene in a much more dilute form, as a disinfectant, and anti-bacterial <br /> Histoio ,y wash and in aquariums for treating parasite infections in fish. <br /> The disinfectant properties of the solution are due to the <br /> presence of formaldehyde, which also gives it a pungent, <br /> irritating smell. <br /> Manufacture <br /> Formaldehyde is manufactured industrial) b the oxidation of <br /> Y Y Y <br /> methanol. Large amounts of the chemical are made this way for <br /> use in the production of plastics and resins. Formalin is <br /> produced by dissolving the gas in water until the desired <br /> concentration is reached, up to a maximum of 40%. Since water <br /> is the other product of the reaction, the process can produce <br /> formalin directly. Formaldehyde in aqueous solution is unstable <br /> and tends to polymerize, forming larger molecules that are <br /> insoluble and therefore precipitate out of the solution. For this <br /> reason, methanol, which prevents polymerization, is added to <br /> the solution. <br /> Ads by Google <br /> Low Thyroid Symptoms? Learn Why Your Thyroid <br /> Symptoms May Be A Sign Of A <br /> Hormonal Imbalance. <br /> Formalin is used in www.MantecaThyroidDoc.com <br /> vaccines as a <br /> preservative. <br /> Free NFPA Diamond Guide Understand the NFPA Diamond <br /> at a glance. Use as a desk or <br /> wall chart <br />