Hypophosphorous acidHypophosphorous acid (HPA), or phosphinic acid, is a phosphorus oxyacid and a powerful reducing agent with molecular formula H3PO2. It is a colorless low-melting compound, which is soluble in water, dioxane Read from the Chembox of the Wikipedia article Hypophosphorous acid, revision 1352866107.

Property

Value

Formula

H3O2P, 66.00 g/mol

Melting point

26.5 °C

Boiling point

130 °C

Density

1.493 g/cm³

pKa

0.89

The compounds of every Wikipedia article carrying a Chembox or a Drugbox, refreshed daily, with the values their infoboxes give. The pages need JavaScript; the API does not.