Official in the form of the solution given below.

Liquor Formaldehydi

Eng., Solution of Formaldehyde. Synonym. Formalin. A colorless, aqueous solution containing not less than 37 per cent. by weight of absolute Formaldehyde (HCOH). It is miscible with water or alcohol.

Therapeutic Action

Antiseptic, disinfectant.

This preparation is, of course, extensively used by the profession, but is seldom prescribed. It is the most desirable agent for disinfecting rooms, clothing, etc., as it does not damage or decolorize material. Special"generators"are usually employed for liberating the gas from solution. For rooms about 1 pint is used for each 1000 cubic feet of space.

Formaldehyde Torches are a convenient form for use. They contain paraformaldehyde, a solid condensation product of formaldehyde, and the gas is liberated by heat. See Paraformaldehydum.