Sodium Bicarbonate

Origin China  Model Number Sodium Bicarbonate  Brand Name Xiangchangtong  CAS No. 144-55-8  Purity 99.0% min  Fomular NaHCO3  MOL WT. 84.01  H.S. CODE 2836.30  SYNONYMS Baking soda; Sodium acid Sodium Bicarbonate, commonly called baking soda, is a white odourless, crystalline solid, completely soluble in water but slightly soluble in ethanol. It is the mildest of all sodium alkalis. It is prepared from purified sodium carbonate or sodium hydroxide solution with passing carbon dioxide which is bubbled into the solution of pure carbonate, and the bicarbonate precipitates out to be dried as the bicarbonate is less soluble than the carbonate. Sodium bicarbonate is also made as an intermediate product in the Solvay process which is to make sodium carbonate from calcium carbonate by treating sodium chloride with ammonia and carbon dioxide. The major use of sodium bicarbonate is in baking powders. Sodium Bicarbonate plays an important role in the products of many diverse industries with functions of  releasing CO2 when heated above about 50 C or when reacted with a weak acid makes sodium bicarbonate a key ingredient in food leavening as well as in the manufacture of effervescent salts and beverages. It can react as an acid or a base in water treatment. In health and beauty applications, mild abrasivity and ability to reduce odors chemically by neutralizing the acid by-products of bacteria are utilized. It is also used in  treating wool and silk, fire extinguishers, pharmacy, leather, oredressing, metallurgy, in cleaning preparations and industrial & chemical processe. PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE White crystalline powder or lumps MELTING POINT 60 C (Decomposes) BOLING POINT   SPECIFIC GRAVITY 2.159 SOLUBILITY IN WATER soluble pH 8.3 (0.1 mol) VAPOR DENSITY   AUTOIGNITION   NFPA RATINGS Health: 1; Flammability: 0; Reactivity: 0 REFRACTIVE INDEX   FLASH POINT Not considered to be a fire hazard STABILITY Stable under ordinary conditions APPLICATIONS food & food processing, beverages , pharmaceuticals , animal foodstuffs , household cleaning products , rubber & plastics foam blowing , fire extinguishers & explosion suppression , effluent & water treatment, flue gas treatment , oil drilling , industrial & chemical processes   SALES SPECIFICATION   APPEARANCE clear powder NaHCO3 99.0% min INSOLUBLES IN WATER 0.01% max NaCl 0.02% max Na2SO4 0.04% max Fe2O3 0.001% max Na2CO3 1.05% max Pb 5ppm max MESH SCREEN SIZE 70% min (+325)   TRANSPORTATION PACKING 25kgs, 50kgs in bag HAZARD CLASS Not regulated

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