CP Grade Packing 25kg Bag Cas No.:139-05-9 Color & Appearances:white crystalline flakes or needles Purity:98.5%-101% PH:5.5-7.5 Loss on Drying:15.5% max Arsenic:1ppm max Selenium:30ppm max Heavy Metals(Pb):10ppm max Sulphate(SO4):500ppm max Cyclohexlamine:25ppm max Dicyclohexylamine:1ppm max Aniline:1ppm max Transparance:95% min |