
Phosphorous Acid
Phosphorous Acid
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Quick Details
CAS No.:13598-36-2
Appearance: White crystal.
Description
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
​Specification
Items/Lot#: specification
Assay: 98.5% min.
Fe: 50ppm max
Arsenic 10ppm max
Phosphate(PO4): 0.6% max.
Chloride(Cl): 0.01% max.
Sulphate(SO4): 0.008% max.
Appearance: white crystal
Package
25kg net bag (25MT/20’FCL)





