Specifications
|
ITEM
|
STANDARD
|
||
|
sodium sulphate %(Na2SO4)
|
99.5 MIN.
|
99.0 MIN.
|
99.0 MIN.
|
|
water insolubles %
|
0.01 MAX.
|
0.05 MAX.
|
0.05 MAX.
|
|
Ca + Mg (as Mg) %
|
0.03 MAX.
|
0.15 MAX.
|
0.15 MAX.
|
|
chlorides %(Cl)
|
0.07 MAX.
|
0.35 MAX.
|
0.35 MAX.
|
|
iron %(Fe)
|
0.002 MAX.
|
0.002 MAX.
|
0.002 MAX.
|
|
moisture %
|
0.20 MAX.
|
0.20 MAX.
|
0.20 MAX.
|
|
whiteness %
|
85 MIN.
|
82 MIN.
|
82 MIN.
|
|
PH-value
|
6-7.5
|
6-8
|
9-11
|
|
Partickle size: Passed through on 100 mesh
|
around 60-65%
|
around 60-65%
|
not required
|
Usage: Sodium sulfate anhydrous 99%, Mainly used in detergents, paper-making, glass, dyeing, textile and porcelain industries.
Properties: White/fine granular or powder; Easily dissolving in water showing neutrality. It can be dissolved glycerin, but insoluble in alcohol. Its accessibilly make it easily became monohydrated salt when it is exposed in the air.