CONTENT:99.0%min MELTING POINT:121-123C HEAVY METAL:0.001%min SOLUBLE IN ACID:Clear liquid 1. Description:Benzoic acid is colorless, odorless crystalline flake. Melting point 122.13 °C, boiling point 249 °C, relative density 1.2659 (15/4 °C).It sublimate rapidly in 100°C, the steam is strong excitant, easy cause cough by inhalation.It soluble in water slightly ,soluble in ethanol , ethyl ether ...