Fertilizer 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)
Potassium nitrate is a source of potassium and nitrogen, two macro nutrients (primary nutrients) essential for plant nutrition and growth. Since healthy growth requires large amounts of nitrogen and potassium, these elements have to be added to the soil in order to achieve healthy growth.
The use of agricultural potassium nitrate can increase the yield, improve the quality, early maturity, enhance disease resistance, prolong the freshness period.
|
Index Name
|
First Grade
|
Qualified Grade
|
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
|
