White or grey powder. It tastes slightly bitter. It dissolves in water while greatly releasing heat. Its water solution is clear transparent. Its absorbility is very strong.
Quality Standards：
Test Items
Specifications
Appearance
White power
Assay
77%-80%
Sodium Chloride
≤5%
Calcium hydroxide
≤0.10%
Water insoluble
≤0.15%
Fe2O3
≤0.002%
As
≤1ppm
Cu
≤1ppm
Cd
≤1ppm
Cr
≤1ppm
Pb
≤10ppm
Hg
≤1ppm
ph
8~10
Package：
In 25kg PP bags.
Usage：
It is used as desiccant, cryogen, construction antifreeze, dust collecting agent in road, antifogging agent, fire retardant in textile, food antiseptic, etc. It could also be used to product calcium salts.
