ACIDUM BORICUM—BORACIC ACID—BORIC ACID
Derivation.—Made by evaporation and crystallization of a solution obtained by passing steam issuing from rocks in volcanic regions of Italy, through water; or by the action of hydrochloric or sulphuric acids upon borax. Recovered by filtration and recrystallization.
Properties.—Transparent colorless scales, of a somewhat pearly luster, six-sided tricline crystals, or a light white, very fine powder, slightly unctuous to the touch; odorless, having a faintly bitterish taste, and permanent in air. Soluble in water, alcohol, glycerine, etc.
Dose.—Horses and cattle, 2 to 4 drs.; foals and calves, 20 to 30 grs.; sheep and pigs, 30 to 40 grs.; dogs, 5 to 20 grs.