Chinese name Hypophosphorous acid
English name Hypophosphorous acid
Alias hypophosphorous acid

Phosphoric Acid

HPA
English alias Hypophosphorousacidcolorlessliq

phosphinic acid

Phosphinic acid

phosphenous acid

hydroxy(oxo)phosphonium

HPA

Hypophosphite Acid
CAS 6303-21-5
EINECS 228-601-5
Chemical formula H3O2P
Molecular weight 65.9964
inchi InChI=1/H3O2P/c1-3-2/h3H2,(H,1,2)
Melting point -25℃
Water-soluble SOLUBLE
Physical and chemical properties Colorless oily liquid or deliquescent crystal. Easily soluble in hot water, ethanol and ether. Soluble in cold water.
Product use It is a strong reducing agent, used to make hypophosphites such as sodium hypophosphite and calcium hypophosphite
Dangerous goods mark C-corrosive goods