Potassium salts
Potassium Nitrate
Product name: Potassium Nitrate
CAS No.: 7646-93-7
Molecular Formula:
KNO3
Molecular Weight: 101.1
Characters: White crystalline powder, It is deliquescent, can be easily decomposed when heated, soluble in water, slightly soluble in alcohols.
Specifications:
| Potassium Nitrate | A.R. | C.P. | Refined grade |
| Item | Spec. | Spec. | Spec. |
| Assay % | -- | -- | ≥99.0 |
| Aqueous solution reaction | PASS | PASS |
-- |
| Clarity test | PASS |
PASS |
-- |
| Water insoluble% | ≤0.004 | ≤0.006 | ≤0.01 |
| Drying loss % | ≤0.2 | ≤0.5 | ≤0.5 |
| Chloride% | ≤0.003 | ≤0.007 | ≤0.01 |
| Sulphates(SO4) % | ≤0.005 | ≤0.01 | ≤0.01 |
| Nitrite and Iodinates(asNO2)% | ≤0.001 | ≤0.002 | ≤0.002 |
| Phosphate(PO4)% | ≤0.001 | ≤0.001 | ≤0.001 |
| Na% | ≤0.02 | ≤0.05 | ≤0.05 |
| Mg% | ≤0.002 | ≤0.004 | ≤0.004 |
| Ca% | ≤0.004 | ≤0.006 | ≤0.006 |
| Fe% | ≤0.0002 | ≤0.0005 | ≤0.0005 |
| Pb% | ≤0.0005 | ≤0.001 | ≤0.001 |
Product Usage: It is mainly used for firework, black gunpowder, matches, primacord, candlewick, tobacco, color-TV kinescope, chemical reagent, catalyst, glazed color for ceramics, glass, fertilizers, and flowers, vegetables, fruit trees etc. It is also used in metallurgical industry and food industry.
Packaging: In 25Kg/woven bag lined with double-layer plastic bag
Storage Precautions: Stored in cool, draughty and dry place at room temperature.


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