Ammonium phosphinate is a chemical compound with the chemical formula . This is a salt of ammonium and phosphoric acid.
Synthesis.
The effect of ammonia solution on phosphoric acid solution:
Physical properties.
Ammonium phosphonate forms colorless crystals of rhombic system, spatial group "C mma", cell parameters a = 0.757 nm, b = 1.147 nm, c = 0.398 nm, Z = 4.
The compound is soluble in water and ethanol, but insoluble in acetone.
Uses.
The compound is usually used as a catalyst for the production of polyamide.