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a 10% solution of formaldehyde in water; used as a disinfectant or to preserve biological specimens

a 10% solution of formaldehyde in water; used as a disinfectant or to preserve biological specimens

A highly reactive aldehyde gas formed by oxidation or incomplete combustion of hydrocarbons. In solution, it has a wide range of uses: in the manufacture of resins and textiles, as a disinfectant, and as a laboratory fixative or preservative. Formaldehyde solution (formalin) is considered a hazardous compound, and its vapor toxic. (From Reynolds, Martindale The Extra Pharmacopoeia, 30th ed, p717)

Liquor formaldehydi a 37 per cent. solution of formaldehyde.

Wood-alcohol containing 40 percent, of formaldehyd.

An antiseptic, which is 40 percent, aqueous solution of formic aldehyd.