Analytical grade anhydrous sodium sulfite

? LANGFANG PENGCAI FINECHEMICAL CO, LTD Langfang Peng Cai Fine Chemical Co., Ltd. Test Report of Product inspection report Name: Anhydrous sodium sulfite (Na 2SO3) Specifications: AR criteria based on: HG / T3472-2000 Product: Sodium sulfite anhydrous pacification: AR Standard: HG / T3472-2000 Lot: 20110713 Production Date: July 13, 2011 Duration: July 12, 2013 Batch No: 20110713 Produce Date :? July.13.2011 Expire Date :? July.12.2013 test items T?? I tem test T est S tandard test results est T estresult Characters (Characters) as a white powder (White powder) qualified (Conform) content (Assay) 97.0% 98.2% Clarity test (Appearance of solution) shall comply with (Comply with the standard) qualified (Conform) Water-insoluble (Water-insoluble)? 0.005% 0.003% bisulfite (in Na2HSO3 dollars) (Acid accumulator sulfite (Na2HSO3)) shall comply with (Comply with the standard) qualified (Conform) free alkali (as Na2CO3 meter) (Free alkali (Na2CO3)) 0.1% 0.1% chloride (Chloride) 0.005% 0.005% thiosulfate (S2O3) (Thiosulfate (S2O3)) 0.01% 0.01% Fe (Iron) 0.0005% 0.0004 % Heavy (Heavy metal) 0.001% 0.001% Arsenic (Arsenic) 0.0001% 0.0001% conclusion (Conclusion): comply with the provisions of AR (The above product complies with AR?????) Leader (Principal): Zhao Ling test members (Inspectors): Liu Fang