White crystal powder. Odorless. Relativedensity:2.13. It
will lose 1 crystal water at temperature 205℃. When it is heated (550-650℃), it
will decompose pyrophosphate. It is soluble in lower density acid, hardly
soluble in water, insoluble in ethanol.
It should be stored in a dry and ventilative warehouse.
Avoid rain and moisture during transport. Furthermore, it should be stored
separately from poisonous substance.