Buy Potassium Nitrate CAS No:7757-79-1:
Molecular Formula:KNO3
CAS No.: 7757-79-1
Relative Molecular Weight: 101.1
Quality Standard: GB 1918-2011
Place of Origin: Shanxi, China (Mainland)
Mainly used in fireworks, gunpowder, match, fuse, wick, tobacco, color TV picture tubes, drugs, chemical reagents, catalysts, ceramic glaze, glass, composite fertilizer, and the foliar spray fertilizer of Economic crops such as Flowers, vegetables, fruit trees and so on. Potassium nitrate is the accessory material of metallurgical industry.
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Index Name
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First Grade
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Qualified Grade
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Agricultural Grade
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Actual Value
|
|
Purity (KNO3-) % ≥
|
99.4
|
99
|
98
|
99.4
|
|
Water content (H2O) % ≤
|
0.10
|
0.30
|
1.0
|
0.06
|
|
Chloride content (based on Cl) % ≤
|
0.02
|
0.10
|
0.30
|
0.009
|
|
Insoluble substance in water % ≤
|
0.02
|
0.05
|
—
|
0.007
|
|
Sulfate content (based on SO42) % ≤
|
0.01
|
—
|
—
|
0.005
|
|
Fe % ≤
|
0.003
|
—
|
—
|
0.003
|
|
K2O % ≥
|
—
|
—
|
45.5
|
46
|
|
N % ≥
|
—
|
—
|
13
|
13.5
|
