|
|
|
Home export productsIndustrial chemical products Modiilt Plastic |
 |
Molecular Formula: H3PO3
Molecular Weight: 82.00
CAS No.: 13598-36-2
UN No.: 2834
|
Properties:
Phosphorous acid is a colorless crystal. It can be slowly oxidized to phosphoric acid in the air. When heated to 180 °C, it can be decomposed into phosphoric acid and phosphine (highly toxic). As a dibasic acid, it has slightly ber acidity than phosphoric acid.
Phosphorous acid has b reducibility and can easily reduce Ag+ to metal silver. It can also reduce sulfuric acid to sulfur dioxide. It is corrosive and has b hygroscopicity.
Relative Density: 1.651 (21.1 °C)
Melting Point: 73.6 °C
Boiling Point: 200 °C (Decomposes)
Solubility: Easily soluble in water and alcohol.
Specification:
|
|
A Grade |
B Grade |
|
Main Content (based on H3PO3 ) (%) |
≥ 99.0 |
≥ 99.0 |
|
Iron Content (based on Fe) (%) |
≤ 0.001 |
≤ 0.003 |
|
Chloride Content (based on CL) (%) |
≤ 0.01 |
≤ 0.02 |
|
Sulfate Content (based on SO4) (%) |
≤ 0.008 |
≤ 0.01 |
|
Phosphate Content (based on PO4) (%) |
≤ 0.2 |
≤ 0.6 |
|
Appearance |
Pure white crystal |
White crystal |
|
70% Aqueous Solution Test |
Colorless transparent |
Colorless transparent, without impurities |
|
Liquid Phosphorous Acid (%) |
≥ 70-80 |
Colorless, transparent |
Applications:
Phosphorous acid is mainly used in the production of phosphates, synthetic fibers and organophosphorus pesticides, etc.. It is also used in producing high performance water treating agent ATMP.
Packaging:
25kg / 500kg / 1000kg in woven bag lined with double layer polythene bag.
The packaging should be marked with "CORROSIVE"sign.
Output:
10,000 tons per year |
|
|
|
