Sell Sodium Hypophosphite

Sodium Hypophosphite You May Also Be Interested In: electroless nickel electroless nickel plating hypophosphorous acid nah2po2 sodium hypophosphite

Appearance White Crystalline
NaH2PO2. H2O 101% min
NaH2PO3 0.3% max
SO4 50ppm max
Cl 50ppm max
Fe 1ppm max
Ca 50ppm max
As 1ppm max
Pb 1ppm max
pH 6 - 8

Package: in 25 kg net kraft paper bags with an inner PE liner, or in 500 or 1000 Kg big bags.

Sodium hypophosphite (NaPO2H2, also known as sodium phosphinate) is the sodium salt of hypophosphorous acid and is often encountered as the monohydrate, NaPO2H27H2O. It is a solid at room temperature, appearing as odorless white crystals. It is soluble in water, and easily absorbs moisture from the air.

Sodium hypophosphite should be kept in a cool, dry place, isolated from oxidizing materials. It decomposes when heated and produces toxic phosphine gas, causing irritation to the respiratory tract.


Sodium hypophosphite is mainly used for electroless nickel plating. With this method, a durable nickel-phosphorus film can coat objects with irregular surfaces, and can widely be used ionics, aviation and the petroleum field.