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Product Name: Potassium Nitrate
Common name: soil glass, fire glass
CAS No.: 7757-79-1
Molecular formula: KNO3
Molecular weight: 101.1
HS CODE: 28342190
UN No.: 1486 Class 5.1 oxidant
Properties and Uses: colorless transparent rhombic or rhombic crystals or white powder, easily soluble in water, soluble in liquid ammonia and glycerin, insoluble in absolute ethanol and ether.?It is not easy to deliquesce in the air. It is a strong oxidant. It can cause combustion or explosion when it comes in contact with metal powders such as carbon, sulfur and titanium.
Mainly used in the manufacture of purple flame, black powder; metal heat treatment salt bath; manufacture of lamp glass bulbs, optical glass, picture tube glass bulbs; also used in ceramic glaze medicine, agricultural fertilizers.
It is mainly used for foliar spraying fertilizers on candle wicks, tobacco, color television picture tubes, medicines, chemical reagents, catalysts, ceramic glazes, glass, compound fertilizers, flowers, vegetables, fruit trees and other economic crops.?In addition, the metallurgical industry and the food industry use potassium nitrate as an auxiliary material.
Product standard of industrial potassium nitrate: GB1918-2011
| Main Index | Unit | Top grade | Industrial grade | Agricultural grade | Ceramic grade |
|---|---|---|---|---|---|
| Content | % ≥ | 99.8 | 99.6 | 99 | 96 |
| Moisture | % ≤ | 0.10 | 0.10 | 0.10 | 0.10 |
| Chloride | % ≤ | 0.02 | 0.03 | 0.03 | 0.08 |
| Water insoluble matter | % ≤ | 0.01 | 0.01 | 0.02 | 0.15 |
| Sulfate | % ≤ | 0.02 | 0.02 | - | - |
| Iron content | % ≤ | 0.003 | 0.01 | - | 0.003 |
| Potassium oxide | % ≥ | - | - | 46.0 | 44 |
| Nitrogen content | % ≥ | - | - | 13.5 | 13.5 |
| Sodium content | % ≤ | - | - | - | 0.007 |
| Sodium oxide | % ≤ | - | - | - | 0.01 |
Packing: 25/50kg plastic bag lined woven bag, or according to customer requirements.
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