Relative density ( d254 ) 1.40 . Melting point 209-212℃. Stable in dry air, incombustible, low toxicity, the median lethal dose (mice by mouth ) > 4000mg/kg. The maximum allowable concentration of dicyandiamide is 5 mg / m³ in the air .

1)as the dehydrating agent for the production of alcohol, ester, ether, acrylic resin 2) as port antifogging agent, road dust collection and fabric fire retardant 3)mainly used to treat tetany, urticaria and so on because of blood calcium reduce

It is widely applied in water purification, waste water treatment, precision cast, paper production, pharmaceutical industry and daily chemicals.

Synonyms: Disodium sulfate; sodium sulfate anhydrous; sulfuric acid, disodium salt; sodium sulfate; Speed-dry, sodium sulphate anhydrous