What is used to make hypophosphorous acid?

Answer 1

motorcyclemessiah ON BEHALF OF THE JUNKIES AGAINST CRIME LIBERATION FRONT says what i would guess at to arrive at h3po2 is if you started with 200 grams of sodium bi phosphate 140 ml HCL+140 ml H2O gently heat till sodiun chloride precipitates out of solution then test with hydrometer it should come up at 11.25 specific densityand it should be able to be burnt giving of a good flame and leaving a black residue if this dosent work it is used in the dairy pig and electroplating industrys so drop the power to the place and bolt cutter the locks and send us the lot and we will give you some speed when we make it regards the motorcycle messiah.

Answer 2

Hypophosphorous acid is typically made by the reaction between phosphorus trichloride and water, followed by hydrolysis. It can also be produced by the reduction of phosphorus pentoxide with hydrogen gas.

Answer 3

H3PO2 is named by IUPAC: Phosphinic acid.

Hypophosphorous acid is used in the formulation of pharmaceuticals, discoloration of polymers, water treatment, retrieval of precious or non-ferrous metals.

Its main use however, is for electroless plating (deposition of select metal films from solution on a sensitized surface).