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 |