Technical specification of sodium cyclamate NF13 Appearance: odorless white crystals Assay(anhydrous basis): 98% min. Loss on drying: 1% max. Arsenic: 3ppm max. Selenium: 30ppm max. Heavy metals: 10ppm max. Cyclohexylamine: 25ppm max. Dicyclohexylamine: 1ppm. max. Aniline: 1ppm max.