weh***efactoryproducePotassiumnitrateandpotassiumcarbonate.Itismainlyuseforceramicindustry.Qualityareverystableandwithverycompetitiveprice.sampleis***aliable,pleasedofeelfreetocontactus.Spec.:COMMODITY:POTASSIUMNITRATEAppearance:WhiteCrystallinePowderTechnicalSpecificationStandardTestResultAssay99.4%min99.5%Moisture0.10%max0.07%Chloride0.03%max0.02%InsolublesInWater0.01%max0.01%Iron0.003%max0.003%Sulphates0.01%max0.01%Hygroscopicity0.25%max0.20%)