Classification: sulphate type: sodium sulfite cas no.: 7757-83-7 other names: sodium anhydrous mf: na2so3 einecs no.: 231-821-4 place of origin: shandong, china (mainland) grade standard: industrial grade, reagent grade purity: 97% appearance: white crystalline powder application: industrial grade, reagent grade brand name: blue ribbon model number: br-005 classification: sulphate mf: na2so3 grade standard: industrial grade, reagent grade brand name: blue ribbon type: sodium sulfite einecs no: 231-821-4 purity: 97% model number: br-005 cas no: 7757-83-7 appearance: white crystalline powder 1.Color: white crystalline powder 2.Purity: 97% 3.Packing:25kg/50kg bag or as per customer's request.