PRODUCT: AMMONIUM CHLORIDE PERIOD OF VALIDITY:2 YEARS APPEARANCE: WHITE POWDERED CRYSTALS ANALYSIS RESULT: PURITY(NH4Cl CONTENT ON DRY BASIS):99.54% MOISTURE: 0.13% Fe CONTENT: 0.001 REMNANT OF COMBUSTION: 0.16% HEAVY METAL(AS Pb)CONTENT: <0.0004% SULPHATE CONTENT(SO4):<0.02% PH VALUE(200g/L,25¡æ): 4.8