Potassium Nitrate Properties:This product is colorless and transparent rhmobic crystals or white powder.It will burn and explode when meeting with organics relesing irritant gas.If mixed withe carbon powder or sulfur,it burns with strong light. Use: 1.It is mainly applied in TV kinescope glass,glass refining agent and motor light glass; 2.compound fertilizer and foliar spray fertilizer for crop and flower; 3.fireworkss to produce purple flame and black powder in mine,ignition wire and firecracker; 4.drugs as penicillian potassium salt in medicine industry and catalyzer;ceramaic and enamel; 5.salt bath of heat treament,cigarette paper,concentrating agent; 6.conservatives in salted meat and chromogen in food ondustry,etc. Industrial GradeExport GradeUnitFine GradeFirst GradeRegular GradeUnitIndustrial GradeAgriculture GradePurity%≥99.799.499%≥99.897.5Mositure%≤0.10.10.3%≤0.1Chloride(as CL)%≤0.010.020.1%≤0.01-0.030.8Insoluble matter in water%≤0.010.020.05%≤0.01Sulphate(as SO4)%≤0.0050.01%≤0.01Hygroscopicity%≤0.250.3%≤0.25Iron(Fe)%≤0.003%≤0.003K2O%≤46Nitrogen (in nitrate)%≥13.5Particle size0.2-2.5,1-3,0.2-5MM0.2-2.5,1-3,2-5,0.2-5