Hypophosphorous acid (HPA 50%)

CAS No.: 6303-21-5
Molecular formula: H₃PO₂            
Appearance: Colorless and transparent flammable liquid with ethanol odor

H₃PO₂ Content: 50% Min.
H₃PO₃ Content: 0.3% Max.
Iron: 0.0005% Max.
Sodium: 0.050% Max.
Chloride: 0.010% Max
Sulphate: 0.010% Max.
Calcium:  0.010% Max.
Copper: 1ppm max.
Arsen: 1ppm max.
Lead: 1ppm max.
Sb: 1ppm max.
Color (Hazen): 30 max
Specific gravity: 1.190-1.220
Packing: net25kg /250kg/drum or 1mt /IBC

Application : Can be used in the production of the modifier of thermosetting coatings, adhesives, fiber treatment agents and synthetic resin copolymers. Also can be used as one of the main cross-linking functional group monomers