Chemical Formula：H3PO4
Molecular Weight：97.99
Standard executed：GB2091-2003(Technical grade) GB3194-2004(Food grade)
Properties:
It is in Colorless,transparent and syrupy liquid or rhombiccrystalline;it is odorles and tasted very sour;its melting point is 42.35℃ and when heated to 300℃ it will become into meta phosphoric acid; relative density of 85% phosphoric acid is 1.834;it is easily soluble in water and resolves in ethanol;it may irritate human skin to cause phologosis and destroy the issue of human body;it shows corrosiveness being heated in ceramic vesseels;it has got hydroscopicity.
Application:
Technical grade phosphoric acid may be used to produce variety 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 costing industry it is used as a rust-proof coating for metals;as a acidity regulator and nutrition agent for yeast food grade phosphoric acid maybe 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.
Packing :
Packed in 35KG or 330KG plastic drum ,or 1600kg IBC drum.The inner cover as well as the outer cover of the packing drums must be well sealed.
|
NO.
|
Indexes
|
Tech grade
|
Food grade
|
|
1
|
Appearance
|
Colorless,transparent syrupy liquid
|
Colorless,transparent syrupy liquid
|
|
2
|
Colour≤
|
20
|
10
|
|
3
|
Assay（H3PO4） % ≥
|
75.0/85.0
|
75.0/85.0
|
|
4
|
Chloride（CL）% ≤
|
0.0005
|
0.0005
|
|
5
|
Sulphate（SO4）% ≤
|
0.005
|
|
|
6
|
Iron （Fe）% ≤
|
0.002 |
|
|
7
|
Arsenic ( As ) % ≤
|
0.005 |
0.0005
|
|
8
|
Heavy Metals( Pb ) % ≤
|
0.001 |
0.0005
|
|
9
|
Oxidable matter（H3PO3）% ≤
|
|
0.012
|
|
10
|
Fluoride(F) % ≤
|
|
0.001
|
|
