Derivative
Monohydrate.
Properties
White, odorless, deliquesc granules; saline taste.
When strongly heated, it dec with evolution of phosphine which ignites
spontaneously in the air. It explodes when
triturated with chlorates or other oxidizing agents. Sol
in 1 part water, 0.15 part boiling water; freely sol in glycerol and
in boiling alcohol; sol in cold alcohol, slightly in abs alcohol.
Insol in ether. Soly of anhydr NaH2PO2 at
25° in ethylene glycol: 33.0 g/100 g; in propylene glycol: 9.7 g/100
g. The aq soln is neutral. Keep well closed.As reagent for arsenic and iodates; prepn of hypophosphites
syrup.