2 results about "HYPOPHOSPHITE ION" patented technology

The hypophosphite ion is H 2 PO − 2.The salts are prepared by heating white phosphorus in warm aqueous alkali e.g. Ca(OH) 2: P 4 + 2 Ca(OH) 2 + 4 H 2 O → 2 Ca(H 2 PO 2) 2 + 2 H 2. Hypophosphites are reducing agents:. H 2 PO − 2 + 3OH − → HPO 2− 3 + 2H 2 O + 2e −. Hypophosphites are used in electroless nickel plating as the reducing agent to deposit for example Ni metal from Ni salts.