sodium cyclamate Purity : 98.5-101% Heavy Metals(Pb): 10 ppm max. Sulfate(SO4) : 500 ppm max. Loss on drying : 1% max. PH Value : 5.5-7.5 As : 3 ppm max. Anline: 1 ppm max. Selenium : 30 ppm max. Cyclohexylamine : 25 ppm max. Dicyclohexylamine : 1 ppm max. Transparency : 95% min.