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Hypophosphorous acid
Product name Hypophosphorous acid
Product name Hypophosphorous acid
Alias Hypophosphorousacidcolorlessliq; phosphinic acid; Phosphinic acid; phosphenous acid; hydroxy(oxo)phosphonium; HPA; Hypophosphite Acid
CAS RN 6303-21-5
EINECS No. 228-601-5
Molecular formula H3O2P
Molecular weight 65.9964
Properties Colorless oily liquid or deliquescent crystal. Easily soluble in hot water, ethyl alcohol and ethyl ether, soluble in cold water.
Uses In producing sodium monophosphate, calcium hypophosphite, and other hypophosphites
Hypophosphorous acid
Alias Hypophosphorous acid
Product name --
Molecular formula H3PO2
Molecular weight 66.00
Properties Colorless oily liquid or deliquescent crystal. Specific gravity is 1.493(19℃), 1.294(50%), melting point is 26.5℃. It breaks down at 130℃. Soluble in water, ethyl alcohol and ethyl ether.
Details:
 
Item
Unit
50%
Refined product
Content %
≥50
≥50
Appearance
/
Colorless oily liquid
Colorless oily liquid
Sensitivity to arsenic  
Qualified
Qualified
Maximum impurity content      
Phosphite  
2.0
1.5
Sulfate  
0.5
0.1
Barium  
---
0.5
Calcium  
---
---
Iron  
0.02
0.01
Heavy metal Pb
---
0.005
Price Yuan/ton
35000
65000
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