Mô tả sản phẩm: Sodium Bicarbonate - Baking Soda - Bột khai - NaHCO3
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SODIUM BICARBONATE
PRODUCT IDENTIFICATION
CAS NO.144-55-8
EINECS NO.205-633-8
FORMULANaHCO3
MOL WT.84.01
H.S. CODE2836.30
TOXICITYOral rat LD50: 4220 mg/kg
SYNONYMSBaking soda; Sodium acid carbonate;
Sodium Hydrogen Carbonate; Carbonic acid monosodium salt; carbonic acid sodium salt (1:1); monosodium hydrogen carbonate; monosodium carbonate; meylon; Bicarbonate of soda;
RAW MATERIALS
CLASSIFICATION
GENERAL DESCRIPTION
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 STATEWhite crystalline powder or lumps
MELTING POINT 60 C (Decomposes)
BOLING POINT
SPECIFIC GRAVITY 2.159
SOLUBILITY IN WATERsoluble
pH8.3 (0.1 mol)
VAPOR DENSITY
AUTOIGNITION
NFPA RATINGSHealth: 1; Flammability: 0; Reactivity: 0
REFRACTIVE INDEX
FLASH POINTNot considered to be a fire hazard
STABILITYStable 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
APPEARANCEclear powder
NaHCO399.0% min
INSOLUBLES IN WATER0.01% max
NaCl0.02% max
Na2SO40.04% max
Fe2O30.001% max
Na2CO31.05% max
Pb5ppm max
MESH SCREEN SIZE 70% min (+325)
TRANSPORTATION
PACKING25kgs, 50kgs in bag
HAZARD CLASSNot regulated
UN NO.
SODIUM BICARBONATE
PRODUCT IDENTIFICATION
CAS NO.144-55-8
EINECS NO.205-633-8
FORMULANaHCO3
MOL WT.84.01
H.S. CODE2836.30
TOXICITYOral rat LD50: 4220 mg/kg
SYNONYMSBaking soda; Sodium acid carbonate;
Sodium Hydrogen Carbonate; Carbonic acid monosodium salt; carbonic acid sodium salt (1:1); monosodium hydrogen carbonate; monosodium carbonate; meylon; Bicarbonate of soda;
RAW MATERIALS
CLASSIFICATION
GENERAL DESCRIPTION
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 STATEWhite crystalline powder or lumps
MELTING POINT 60 C (Decomposes)
BOLING POINT
SPECIFIC GRAVITY 2.159
SOLUBILITY IN WATERsoluble
pH8.3 (0.1 mol)
VAPOR DENSITY
AUTOIGNITION
NFPA RATINGSHealth: 1; Flammability: 0; Reactivity: 0
REFRACTIVE INDEX
FLASH POINTNot considered to be a fire hazard
STABILITYStable 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
APPEARANCEclear powder
NaHCO399.0% min
INSOLUBLES IN WATER0.01% max
NaCl0.02% max
Na2SO40.04% max
Fe2O30.001% max
Na2CO31.05% max
Pb5ppm max
MESH SCREEN SIZE 70% min (+325)
TRANSPORTATION
PACKING25kgs, 50kgs in bag
HAZARD CLASSNot regulated
UN NO.
