sodium metabisulfite

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sodium metabisulfite
Posting date : Aug 11, 2011
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Classification: Sulphate Type : Sodium Metabisulfite CAS No. : 7681-57-4 Other Names : sodium metabisulfite, SMBS MF : Na2S2O5 EINEC S No.: 231-673-0 Purity :98% 96% Appearance :White Free Flowing Fine Crystal or Powder Application : For printing and dyeing industry, organic synthesis, printing, leather, pharmaceuticals and other departments; in food processing for preservatives, bleach, osteoporosis agent Model Number: industrial grade, food grade Packaging detail : 25 kg/50kg P.P woven bag or with the clients’ request The 20 foot container can hold 25 tons, accounting for the price you press 20 tons of nuclear Description : sodium sulfate is white or yellow crystalline powder or small crystals, with a strong odor of the SO2, the proportion of 1.4, soluble in water, water solution is acidity, contact with strong acids are released SO2 and generates the corresponding salts, long in the air, is oxidized into Na2S2O4, so the product can not be stored for a long time. Higher than that of 1500C, namely the decomposition of SO2 Specifications 1.sodium metabisulfite 64% 2.CAS NO.7681-57-4 3.MF:Na2S2O5 4.Packing: in 25KGS pp bag 5.Origin: Made in China Property: white or light yellow crystal powder, a strong smell of sulfur dioxide,relative density is 1.4, easy to dissolve in water and glycerin, water solution. It has acidity,and its solubility will become large while raising the temperature and is less to dissolve in ethanol. Specification For Food Grade and Industry Grade : Item Quality Index Food Grade Industry Grade Purity( AS Na2S2O5) 98.0%min 96.0%min Sulfur Dioxide( SO2) 65.0%min 65.0%min Arsenic ( As ) 0.0002% max ----- Heavy metals ( As Pb ) 0.0005% max ------ Selenium (Se ) 0.0005% max ------ Iron (Fe) 0.001% max 0.002% max Water insoluble 0.02% max 0.05% max PH value : 4.0-4.8 4.0-4.8 Remark : Conformed with FCC V and E 223

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