50% Hypophosphorous Acid


Prevention of discoloration of fat and resins, reducing agent, catalyst and surface preparation agent.

Data sheet

Specifications and other data

Chemical formula H3PO3
Molecular mass 66.00
CAS NO. 6303-21-5
Appearance Colorless or pale yellow liquid
Aqueous solution
Chloride (Cl)
Sulfate (SO4)
Calcium (Ca)
Arsenic (As) 0.001% max.
Heavy metal (Pb) 0.002% max.
Iron (Fe)
Product content 50.0-52.0%
PH 1.4
Solubility 50%
Specific gravity 1.22
Special attention regarding storage Store under sealed conditions, away from heat and moisture.

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