Sell Sodium Metabisulfite

Description

English name: Sodium Metabisulfiteï&frac*4;ŒSodium Metabisulfiteï&frac*4;ŒSodium Pyrosulfite / Sodium Metabisulphite Technical Manual Code: ***3 CAS No.: ********4 Molecular Formula: Na2S2O5 Molecular Weight: **0.*9 Physical Properties: Sodium Metabisulfite is white or yellow crystalline powder or small crystals, with a strong smell of SO2, the proportion of 1.4, soluble inwater, aqueous solution is acidic, and acid contact with the release of SO2 and generates the corresponding salts, long time home in theair , the oxidized Na2S2O6, so the product n not Jiucun. Higher than ***0C, the decomposition of the SO2. Uses: used for printing and dyeing industry, organic synthesis, printing, leather, pharmaceutical and other sectors; in food processing as preservatives, bleaching agents, baking powder. Packaging and storage: 1 bag (barrel) should be brushing strong signs include: product name, grade, weight and production plant name; 2 sodium metabisulfite, or drum with plastic bag lined with plastic bag, net weight *5 or *0kg; 3 the product transportation, storage should be to prevent damage, moisture, thermal metamorphic event. Strictly prohibited and oxidizer, acid coexist; 4 the product from the production date, storage period of 6 months. Physical and Chemical Properties Ingredients: pure Appearance and Properties: white crystal or crystalline powder, slight odor of sulfite. pH: Melting point (℃):> **0 (decomposition) Relative density (water = 1): 1.*8 Solubility: soluble in water, soluble in ethanol, acetone and so on. Main application: as a chemical reagent (printing and photography, etc.)