Potassium nitrate

Property: Colorless and transparent rhombic or diamond-shaped crystal white powder, soluble in water, liquid Nitrogen and glycer

Quality standard:

Item	Indicator
	High purity	Excellent	First grade	Agriculture grade
Potassium nitrate (KNO3) content	≥99.9%	≥99.8%	≥99.4%	≥98.0%
Moisture content	≤0.10%	≤0.10%	≤0.10%	≤0.10%
Chloride ( Cl-)	≤0.005%	≤0.01%	≤0.01%	≤0.10%
Water insoluble	≤0.005%	≤0.01%	≤0.01%	≤0.10%
Sulfate ( SO42-)	≤0.003%	≤0.005%	≤0.005%	---
Moisture absorption	≤0.20%	≤0.25%	≤0.25%	---
Iron(Fe ) content	≤0.001%	≤0.003%	≤0.003%
Potassium (K2O) content	---	---	---	≥46.0%
Nitrogen (N ) content	---	---	---	≥13.5%

Potassium nitrate