Rui Desheng Chemical, ex-factory] [sodium metabisulfite, sodium metabisulfite provided by 瑞德胜 chemical. We are Weifang Rui Desheng Chemical Co., Ltd. (www.ruidesheng.com) located at: Shandong Weifang specializes in: sodium sulfate, sodium metabisulfite, deicing salt, calcium chloride, sodium bicarbonate, sodium metabisulfite uses a pharmaceutical grade: use for the production of acrylic fiber factory price sodium metabisulfite, chemical synthesis part of vitamin K, vitamin A, and pharmaceutical intermediate products and the like. 2, photographic grade: a photosensitive industrial and fixing bath in reducing the amount of drug used. Sodium metabisulfite is white or yellow crystalline powder or small crystals of high quality sodium metabisulfite, with a strong smell of SO2, the proportion of 1.4, sodium metabisulfite dissolved in water, acidic aqueous solution, with a strong acid contact with the release SO2 and generates the corresponding salts, long home Air sodium metabisulfite price, then oxidized into Na2S2O6, so the product can not go far. Higher than 1500C, ie the decomposition of SO2. English / Latin name Sodium Pyrosulfite Jiaoya Liusuanna Alias: sodium metabisulfite; heavy thioredoxin; focus of sulfite; sodium metabisulphite CASRN :7681-57-4 EINECS No. :231-673-0 InchI Code: InChI = 1/2Na.H2O5S2/c ;; 1-6 ⑵ 5-7 ⑶ 4 / h;; (H, 1,2) (H, 3,4) / q2 * +1 ;/ p-2 Molecular formula: Na2S2O5 Molecular Weight: 190.09 Appearance: white or light yellow crystalline powder or small crystals .. Specifications: Sulfur dioxide ≥ 65% Fe ≤ 0.005% Water insoluble ≤ 0.05% PH value 4.0-4.6 Tel: 15263640888