Chemical Appearance
– Form: Sodium bicarbonate is a white crystalline powder.
– Texture: It has a fine texture, similar to that of table salt or powdered sugar.
– Odor: It is typically odorless.
– Solubility: It is moderately soluble in water, with its solubility increasing with temperature. In water, it forms a slightly alkaline solution.
Applications
– Cooking and Baking: Perhaps the most well-known use of sodium bicarbonate is as a leavening agent in baking. It reacts with acidic components in dough, releasing carbon dioxide, which helps the dough rise.
– Cleaning Agent: Its mild abrasive properties and ability to neutralize odors make it a popular choice for cleaning applications, from scrubbing surfaces to freshening carpets.
– Personal Care Products: It is used in toothpaste for its gentle abrasive qualities and in deodorants for its odor-neutralizing properties.
– Antacid: Sodium bicarbonate can neutralize stomach acid, making it an effective antacid to treat heartburn and indigestion.
– Fire Extinguishing: It is an ingredient in some types of dry chemical fire extinguishers, as it releases carbon dioxide when heated, which helps to smother flames.
– Medical Uses: In medicine, it is used to treat acidosis and in certain cases of overdose or poisoning, where it helps to neutralize stomach acid or to change the pH of the body.
– Chemical and Industrial Applications: In various industrial processes, it’s used as a buffering agent, a component in chemical feedstock, and in pH balancing.
– Agriculture: Sodium bicarbonate is sometimes used in agriculture to neutralize acidic soil.
– Deodorizing: It is effective in absorbing odors, which is why it’s commonly used in refrigerators and for laundering.
– Pest Control: It’s sometimes used as a fungicide and in homemade pest control solutions.
Specification
| inspection standard | GB/T1606-2008 | |
| inspecting item | Standard requirements | The measured results |
| content,% | ≥99.0 | 99.3 |
| surface | White crystal powder | White crystal powder |
| loss on drying,% | ≤0.15 | 0.03 |
| PH Value (10g / L aqueous solution) | ≤8.5 | 8.4 |
| Chloride (in C1),% | ≤0.20 | <0.20 |
| iron (Fe),% | ≤0.002 | <0.002 |
| water-insoluble,% | ≤0.02 | 0.01 |
| Sulphate (S04),% | ≤0.05 | <0.05 |
| calcium (Ca),% | ≤0.03 | <0.03 |
| arsenic (As),% | ≤0.0001 | <0.0001 |
| Heavy metals (in Pb),% | ≤0.0005 | <0.0005 |
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