... acid is miscible with water and most polar organic solvents, and somewhat soluble in hydrocarbons. In hydrocarbons and in the vapor phase it consists ... formic acid does not obey the ideal gas law. Solid formic acid (two polymorphs) consists of an effectively endless ... of formate, formic acid ester, formamide and so on, or also used in medicine, printing and dyeing, dye, leather industry formic acid90% ...