CAS number : 7757-79-1
Molecular weight :101.10
Molecular formula/chemical symbol :KNO3
Description :
Apearances: Colorless transparent prismatic or white granules or crystalline powder. Taste spicy and salty cool feeling. Slightly hygroscopic, hygroscopicity than nitrite. 400 ℃ decomposition escaping oxygen. The 1g Products dissolved in 2.8ml cold water, 0.5ml boiling water, 620ml ethanol. Soluble in glycerin, insoluble in anhydrous ethanol. Can absorb heat when dissolved in water to reduce the temperature. The pH of the aqueous solution is about 7. The relative density of 2.109. Melting point 334 ℃. Strong oxidizing with organic friction or impact can cause a fire or explosion. The median lethal dose (rabbit, oral) 1.166g (anion) / kg.
USES :
Foliar
spray fertilizer for fireworks, gunpowder, matches, fuse, wick, tobacco, color
TV picture tube, drugs, chemical reagents, catalysts, ceramic glaze, glass,
fertilizer, and flowers, vegetables, fruit trees and other cash crops and so on.
In addition, the metallurgical industry, food industry, such as potassium
nitrate used as accessories.
Keywords:Surface treatment chemicals
Report :
|
Product name |
Potassium nitrate |
CAS: 7757-79-1 |
|
|
Apearances |
Colorless transparent prismatic or white granules or crystalline powder |
||
|
TEST ITEMS |
TEST RESULT |
||
|
|
(GR) |
(AR) |
(CP) |
|
KNO3 |
≥99.0 |
≥99.0 |
≥98.5 |
|
Clarity Test |
Qualified |
Qualified |
Qualified |
|
Water insoluble matter |
≤0.002 |
≤0.004 |
≤0.006 |
|
Iodate (IO3) |
≤0.0005 |
≤0.0005 |
≤0.002 |
|
Total chlorine (Cl) |
≤0.0015 |
≤0.003 |
≤0.005 |
|
Sulfate (SO4) |
≤0.002 |
≤0.003 |
≤0.01 |
|
Nitrite (NO2) |
≤0.001 |
≤0.001 |
≤0.002 |
|
Heavy metals (Pb) |
≤0.0003 |
≤0.0005 |
≤0.001 |
|
NH4 |
≤0.001 |
≤0.001 |
≤0.005 |
|
Fe |
≤0.0001 |
≤0.0002 |
≤0.0005 |
|
Ca |
≤0.001 |
≤0.004 |
≤0.006 |
|
Mg |
≤0.001 |
≤0.002 |
≤0.05 |
|
Na |
≤0.02 |
≤0.02 |
≤0.05 |
|
Phosphate (PO4) |
≤0.0005 |
≤0.0005 |
≤0.001 |
