Production capacity: 600 t/year Specification£ºcomply with the requirement of both state standard gb3626-82 and b.P.1980 edition, u.S.P.Xxi(1985)edition; u.S.A.Fcc-iv standard. Technical data: Appearance: white or almost white crystalline powder Purity: % 98-102 Melting point: ¡æ 146--150 As: % ¡ü0.0003 Heavy metal: % ¡ü0.001 Loss on drying: % ¡ü0.5 Residue on ignition: % ¡ü 0.1 Usage: mainly used as antioxidant additive in fattiness, oleaginous foods and Medicinal preparations. Storage£ºescape from light, storing in the airtight vessel, prevent from contacting with metal . Packing£ºcircinal-paper barrel with plastic bag inside, n.W. 25kg/drum. 25kg/drum