| Customization: | Available |
|---|---|
| CAS No.: | 144-55-8 |
| Formula: | Nahco3 |
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| Item--sodium bicarbonate | INDUSTRY GRADE | FOOD GRADE | FEED GRADE |
| Total Alkali(Quality Fraction of NaHCO3 Dry Basis)%≥ | 99.0-100.5 | 99.0-100.5 | 99.0-100.5 |
| Lost of Ignition % ≤ | 0.2 |
0.2 |
0.2 |
| PH 90(10g /L ) ≤ | 8.5 | 8.5 | 8.5 |
| NaCl (Quality Fraction of NaCl Dry Basis) % ≤ | 0.20 | 0.40 | --- |
| Iron(dry mass fraction of Fe)% ≤ | 0.002 | --- | --- |
| Water insoluble matter mass fraction % ≤ | 0.02 | --- | --- |
| As Quality Fraction(Dry Basis) % ≤ | 0.0001 | 0.0001 | 0.0001 |
| Pb Quality Fraction(Dry Basis) % ≤ | 0.0005 | 0.0005 | 0.0005 |
| Ca Quality Fraction(Dry Basis) % ≤ | 0.03 | --- | --- |
| Sulfate(SO4 dry basis of the mass fraction) | 0.05 | --- | --- |
Laboratory use
Sodium bicarbonate can be used as an analytical reagent and also in inorganic synthesis [5]. It can be used to prepare sodium carbonate-sodium bicarbonate buffer solution. When a small amount of acid or alkali is added, the hydrogen ion concentration does not change significantly, and the pH value of the system can be kept relatively stable [24].
Industrial use
Sodium bicarbonate can be used to produce acid-base fire extinguishers and foam fire extinguishers. In the rubber industry, sodium bicarbonate can be used in rubber and sponge production. In the metallurgical industry, sodium bicarbonate can be used as a flux for casting steel ingots. In the machinery industry, sodium bicarbonate can be used as a molding aid for cast steel (sand casting) sand molds. In the printing and dyeing industry, sodium bicarbonate can be used as a color fixative for dyeing and printing, an acid-base buffer, and a post-treatment agent for fabric dyeing and finishing; adding baking soda to dyeing can prevent the yarn tube from producing color spots, and it can also be used as a detergent for wool.
Food processing use
In food processing, sodium bicarbonate is the most widely used loosening agent, used in the production of biscuits, bread, etc., but sodium carbonate will remain after the action. Excessive use will make the food too alkaline, resulting in a deterioration of flavor and a yellow-brown color. It is a carbon dioxide generator in carbonated beverages; it can be combined with alum to form alkaline baking powder, and it can also be combined with soda ash to form civilian soda ash; it can also be used as a butter preservative. It can be used as a color preservative for fruits and vegetables in vegetable processing. Adding about 0.1%~0.2% sodium bicarbonate when washing fruits and vegetables can stabilize the green color. When sodium bicarbonate is used as a fruit and vegetable treatment agent, it can increase the pH value of fruits and vegetables by boiling and bleaching fruits and vegetables, improve the water retention of protein, promote the softening of food tissue cells, and dissolve astringent components. In addition, it has a deodorizing effect on goat milk, and the usage amount is 0.001%~0.002%.
Agricultural and animal husbandry uses
Sodium bicarbonate can be used for agricultural seed soaking, and it can also make up for the lack of lysine content in feed. Dissolving sodium bicarbonate in a small amount of clean water or mixing it into concentrate for feeding cattle (adding an appropriate amount) can promote the growth of cattle and significantly increase the milk production of dairy cows [5-7]. Medical uses
Sodium bicarbonate can be used as a raw material for the treatment of hyperacidity and metabolic acidosis, and for alkalizing urine to prevent uric acid kidney stones. It can also reduce the renal toxicity of sulfonamides, prevent hemoglobin from depositing in the renal tubules during acute hemolysis, and treat symptoms caused by hyperacidity; intravenous infusion has a non-specific therapeutic effect on drug poisoning such as barbiturates, salicylates. However, it is contraindicated for gastric lavage in the case of ingestion of strong acid poisoning, and large-scale injection, renal insufficiency, or long-term use may cause arrhythmia, muscle cramps, pain, abnormal fatigue and weakness, slow breathing, bad breath, frequent urination, urgency, persistent headache, loss of appetite, nausea, vomiting, etc. [25].
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