Phosphoric Acid

Phosphorous acid is in Colorless, transparent and syrupy liquid or rhombic crystalline;Phosphorus acid is odorless and tastes very sour; its melting point is 42.35℃ and when heated to 300℃ phosphorous acid will become into metaPhosphoric Acid; its relative density is 1.834 g/cm3;phosphoric acid is easily soluble in water and resolves in ethanol; Phosphate acid may irritate human skin to cause phlogosis and destroy the issue of human body; phosphorus acid shows corrosiveness being heated in ceramic vessels; phosphate acid has got hydroscopicity.

NO.	Specifications	Phosphoric Acid Industrial Grade	Phosphoric Acid Food Grade
1	Appearance	Colorless, transparent syrupy liquid or in very light color
2	Colour =<	30	20
3	Assay (as H3PO4 )% >=</td>	85.0	85.0
4	Chloride(as Cl- )% =<	0.0005	0.0005
5	Sulphats(asSO42- )% =<	0.005	0.003
6	Iron (Fe)% =<	0.002	0.001
7	Arsenic (As)% =<	0.005	0.0001
8	Heavy metals,as Pb% =<	0.001	0.001
9	Oxidable matter (asH3PO4)% =<		0.012
10	Fluoride,as F% =<		0.001