Food additive, pharmaceutical precursor, polymer catalyst,reducing agent for chemical synthesis

Pink odorless, almost tasteless crystals or powder.  When heated evolves spontaneously
flammable phosphine. One gram dissolves in 6.5 ml cold water or 6.0 ml boiling water.
Insoluble in alcohol.

Keep indoors and protected, keep closed and away from air or moisture. Keep cool and
out of direct sunlight.