Quality standard:GB/T 1918-1998
97.5%Min
Specification:
97.5%Min
Specification:
|
Inspection Items
|
Unit
|
Industrial Grade
|
First Grade
|
Agricultural Grade
|
|
Purity
|
%≥
|
99.8
|
99.4
|
97.5
|
|
Moisture
|
%≤
|
0.10
|
0.10
|
-
|
|
Chloride(as cl-)
|
%≤
|
0.01-0.03
|
0.02
|
0.80
|
|
Sulphate(as SO42-)
|
%≤
|
0.01
|
0.01
|
-
|
|
Insoluble Matter in Water
|
%≤
|
0.01
|
0.02
|
-
|
|
Fe
|
%≤
|
0.003
|
-
|
-
|
|
Hygroscopic
|
%≤
|
0.25
|
0.30
|
-
|
|
K2O
|
%≥
|
-
|
-
|
46
|
|
Nitrogen(in nitrate)
|
%≥
|
-
|
-
|
13.5
|
|
Particle Size
|
MM
|
-
|
-
|
0.2-2.5 2-5
|
Applications:
It is mainly applied in TV glass, glass refining agent and motor light glass, fireworks and black powder, salt bath of heat treatment, concentrating agent; In agriculture area, it is mainly used to make compound fertilizer, foliar spray fertilizer, especially used for mango, tobacco, fruit tree, rubber. In additional, It is applied in cigarette paper, conservatives and chromogen in food industry, etc.
It is mainly applied in TV glass, glass refining agent and motor light glass, fireworks and black powder, salt bath of heat treatment, concentrating agent; In agriculture area, it is mainly used to make compound fertilizer, foliar spray fertilizer, especially used for mango, tobacco, fruit tree, rubber. In additional, It is applied in cigarette paper, conservatives and chromogen in food industry, etc.