Chemical Name: Phosphorous acid
Synonym: Orthophosphorous acid; Dihydroxyphosphine oxide; Phosphorus trihydroxide; Trihydroxyphosphine; Phosphonic acid
CAS No.: 13598-36-2
Chemical Formula: H3PO3
|
Structure： |
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Use: Phosphorous acid is used in synthesis of phosphite salts, plastic stabilizers, pesticides, water-treatment chemicals, phosphite fertilizers for fruits like citrus and orange, vegetables, economic crops etc. , cosmetics additives
Package:
(1)
25kg in plastic woven bag;
(2) 50kg in paper drum or metal pail;
(3) 1000kg in big bag
Specifications:
|
ITEM |
Grade 1 |
Grade 2 |
|
Assay(as H3PO3) |
99.0 |
98.0 |
|
Fe (as Fe ) |
0.0012 |
0.005 |
|
chloride(as Cl ) |
0.01 |
0.01 |
|
sulfate(as SO4) |
0.006 |
0.006 |
|
phosphate(as PO4) |
0.1 |
0.1 |
|
appearance |
white crystal |
white crystal |
|
Aq. solution test (70%) |
colorless transparent |
colorless transparent without any impurities |
