|
INSPECT ION ITEM
|
UNIT
|
FINE
GRADE |
Technical
Grade |
FIRST
GRADE |
REGULAR
GRADE |
Feed
grade |
|
Purity(as K2CO3)
|
% Min
|
99.0
|
99.0
|
98.5
|
96.0
|
90
|
|
Chloride(as KCl)
|
% Max
|
0.01
|
0.03
|
0.10
|
0.20
|
0.4
|
|
Sulphate(as K2SO4)
|
% Max
|
0.01
|
0.04
|
0.10
|
0.15
|
0.3
|
|
Iron
|
% Max
|
0.001
|
0.001
|
0.003
|
0.010
|
0.1
|
|
nsoluble matter in water
|
% Max
|
0.02
|
0.04
|
0.05
|
0.10
|
0.2
|
|
Burnt loss
|
% Max
|
0.6
|
0.8
|
1.00
|
1.00
|
1.5
|
Specification: Food Grade (HG2452-93)
|
NSPECT ION ITEM
|
UNIT
|
STANDARD
|
|
Purity(as K2CO3)
|
% Min
|
99.0
|
|
Chloride(as KCl )
|
% Max
|
0.01
|
|
Sulphate (as K2SO4)
|
% Max
|
0.01
|
|
Iron
|
% Max
|
0.001
|
|
Insoluble matter in water
|
% Max
|
0.02
|
|
Burnt loss
|
% Max
|
0.6
|
|
Arsenic
|
% Max
|
0.0003
|
|
Heavy Metal(as Pb)
|
% Max
|
0.002
|