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Sodium Bicarbonate also is called Baking soda is a weak base, an inorganic compound that is easily soluble in water and slightly soluble in ethanol (some say insoluble). The aqueous solution is slightly alkaline. It is prone to decomposition when heated and slowly decomposes in humid air, producing carbon dioxide. It begins to decompose at around 50 ℃ and completely decomposes when heated to 270 ℃. When encountering acid, it strongly decomposes and produces carbon dioxide. Changli uses this property as a leavening agent for making biscuits, cakes, Mantou and bread. Sodium bicarbonate will leave residual sodium carbonate after action, and excessive use can cause the finished product to have an alkaline taste.
Technical Data:
Sodium Bicarbonate
Characteristic: White crystalline powder, odorless, alkaline
Molecular formula: NaHCO₃
Cas No.: 144-55-8
HS Code: 28363000.00
Item | Grade I | Grade II |
|---|---|---|
Content | ≥99.8% | ≥99.5% |
Potassium (K) | ≤ 0.02% | ≤ 0.02% |
Water insoluble substance | ≤ 0.01% | ≤ 0.02% |
Chloride and chlorate (in CL) | ≤ 0.002% | ≤ 0.005% |
Nitrogen compound (N) | ≤ 0.001% | ≤ 0.002% |
Phosphate (PO4) | ≤ 0.005% | ≤ 0.001% |
Sulfur compounds (calculated as SO4) | ≤ 0.005% | ≤ 0.01% |
Heavy metal (calculated as Pb) | ≤ 0.001 | ≤ 0.002 |
Magnesium (Mg) | ≤ 0.003% | ≤ 0.005% |
Potassium (K) | ≤ 0.01% | ≤ 0.02% |
Calcium (Ca) | ≤ 0.005% | ≤ 0.01% |
Iron (Fe) | ≤ 0.001% | ≤ 0.002% |
PH Value | 7- 8.3 | 7- 8.6 |
Application:
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1. In food processing, it is one of the most widely used bulking agents, used in the production of biscuits, cakes, steamed bread, bread, etc. It is a carbon dioxide generator in soda drinks, because sodium bicarbonate solids begin to gradually increase above 50°C. It can be decomposed to produce sodium carbonate, water and carbon dioxide gas, so it can be used as a leavening agent; it can be compounded with alum to form alkaline baking powder, or it can be compounded with soda ash to form civil alkali; it can also be used as a butter preservative. Sodium bicarbonate will leave sodium carbonate after its action, too much use will make the finished product have an alkaline taste.
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2. In the pharmaceutical industry, sodium bicarbonate can be directly used as a raw material in the pharmaceutical industry to treat hyperacidity and is a raw material for antacids. It can neutralize gastric acid, dissolve mucus, increase alkali storage after absorption, and has a certain expectorant effect. It is mainly used in veterinary clinics to treat gastrointestinal catarrhal inflammation, sepsis and severe diarrhea, extensive burns, and alkalization of urine Liquid and so on.
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3. In fire-fighting equipment, sodium bicarbonate can be used to produce acid-base fire extinguishers and foam fire extinguishers.
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4. It can be used in the production of rubber and sponge in the rubber industry.
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5. It can be used as a flux for casting steel ingots in the metallurgical industry.
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6. In the machinery industry, it can be used as a forming aid for cast steel (sand foundry) sand molds.
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7. In the printing and dyeing industry, it can be used as a fixing agent for dyeing and printing, an acid-base buffering agent, and a finishing agent for fabric dyeing and finishing; adding baking soda to the dyeing can prevent the yarn bobbin from producing colored flowers.
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8. It can also be used as a detergent for wool and for soaking seeds in agriculture.
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9. Adding baking soda to livestock and poultry feed can effectively improve the digestibility of livestock and poultry for feed, accelerate the utilization of nutrients and the excretion of harmful substances, and increase the rate of weight gain of livestock and poultry; it can make the body of livestock and poultry resistant The strength and immunity are always kept in the best condition, and the anti-stress ability of livestock and poultry is improved, which has a positive effect on preventing livestock and poultry diseases and ensuring their healthy growth.