Sodium Sulfite90

Product Name:Sodium Sulfite Product Description: Melting point 500 °C Density 2.63 Refractive index 1,484 Storage conditions Store at RT. Solubility H2O: 1 M at 20 °C, clear, colorless form Solid colour White to slightly yellow PH value 9.0-10.5 (25℃, 1M in H2O) Water solubility 23 g/100 mL (20 oC) Sensitivity Hygroscopic Merck 14,8682 stability Stable. Incompatible with strong acids. Moisture and air sensitive. CAS database 7757-83-7(CAS DataBase Reference) Synonyms: Sodium sulfite anhydrous; SODIUM SULFITE, EXSICCATED; SODIUM SULPHITE; anhydroussodiumsulfite; disodiumsulfite; exsiccatedsodiumsulfite; natriisulphis; natriumsulfid Overview Sodium sulfite (English Sodium formula: Na2SO3) is an inorganic compound. It is a white granule powder at room temperature with a sulphur dioxide odor, stable on drying and sensitive to moisture. Soluble in water and glycerin, insoluble in ethanol, aqueous solution is alkaline, its aqueous solution is alkaline to litmus paper and phenolphthalein, and produces toxic sulfur dioxide gas with acid. The pH of 1% aqueous solution is 8.3~9.4, strong reduction Sex. It decomposes into sodium sulfide and sodium sulfate when heated, and gradually oxidizes to sodium sulfate when placed in air. In nature, there are three forms of anhydrous sodium sulfite, sodium sulfite and sodium sulfite, among which anhydrous sodium sulfite is the least susceptible to oxidation. Sodium sulfite can be obtained by passing sulfur dioxide into a sodium hydroxide solution, and when the sulfur dioxide is excessive, sodium hydrogen sulfite is formed. Alternatively, sulfur dioxide gas is introduced into the sodium carbonate solution, and after saturation, a sodium carbonate solution is added, and crystallized to obtain a hemihydrate crystal, which is heated and dehydrated to obtain an anhydride. Sodium sulfite can be used as a developer, preparation of cellulose sulfite, preparation of sodium thiosulfate, preservatives for dried fruits and meats, deoxidizers in the printing and dyeing industry, and as a reducing chemical agent for chemical and laboratory applications. Production and synthesis. Price:10.00 Product Website:http://www.dlskychem.com/active-pharmaceutical-ingredients/sodium-sulfite.html Company Description Dalian Sky Chemical Co., Ltd. Address:liaoningliaoningdalianganjingziRoom 102, Unit 3, Building 17, Puya Ziyu Road, Ganjingzi District, Dalian City, Liaoning Province,China. Descption:Dalian Sky Chemical Co., Ltd was founded in 2003, therefore we began in 1992, as a large-scale trade import and export corporation. Company is mainly engaged in four categories of products: plant extracts (used in medicals, cosmetics, food and chemical industry), chemical raw materials, finished product drug (Chinese traditional medicine&Western medicine), pharmaceutical raw materials and intermediates. Registered Capital:100 EmployeeNum:100 Dalian Sky Chemical Co., Ltd. Contact:LIBIN Telphone:86-411-86487833-0 Fax:86-000-0000000-0 Email:[email protected] Company Website:http://www.dlskychem.com