Phosphoric Acid is colorless,transparent and syrupy liquid;It is odorless and tastes very sour;its melting point is 42.35degree ;it is easily soluble water and resolves in ethanol;it may irritate human skin to cause phlogosis and destroy the issue of human body;it has got hydroscopic. Food Grade may be applied to flavors ,canned food and light drinks as well as used in wine brewery as a nutrients source for yeast to prevent the reproduction of useless bacteria. Technical Grade may be used to producevariety of phosphates,electrolyte treatment liquids or chemical treatment liquids,refractory mortar with phosphoric acid and inorganic coheretant.It is also used as a catalyst,drying agent and cleaner, In coating industry it is used as a rust-proof coating for metals.