Citric acid
| Physical and chemical properties | Color and smell state: at room temperature, colorless translucent crystals or white particles or white crystalline powder, with a strong sour taste | ||
| Toxicity: non-toxic | Flammability: non-flammable | ||
| Density: 1.542 | Volatility: non-volatile | ||
| Corrosivity: None | Stability: unstable at high temperature | ||
| Melting point: 153-154.5°C | Acidity and alkalinity: strong acidity | ||
| Hygroscopicity: moisture absorption | Deliquescence: slight deliquescence | ||
| Flash point: 155.2°C | Solubility: easily soluble in water and ethanol | ||
| Various numbers | CAS:77-92-9 | HS: 2918140000 | EINECS: 201-069-1 |
| Uses | Citric acid is a relatively strong acidic organic acid. It is the largest organic acid produced by biochemical methods in the world. Citric acid and salts are one of the pillar products of the fermentation industry. They are mainly used in the food industry, such as sour agents and solubilizers. , Buffers, antioxidants, deodorants, flavor enhancers, gelling agents, toners, etc. are used as experimental reagents, chromatographic analysis reagents and biochemical reagents, and also used in the preparation of buffers. In the detergent industry, it It is an ideal substitute for phosphate. Boiler chemical cleaning pickling agent, boiler chemical cleaning rinsing agent, also used to prepare medicine cooling agent, detergent, etc. | ||
| Hazard category | General chemicals | ||
| Fire-fighting measures | This thing is not combust | ||
| Emergency treatment | This substance is non-toxic | ||
| Packaging, storage, transportation | Packed in a lined woven bag or kraft paper bag 25 kg/bag. The citric acid monohydrate loses crystal water in dry air or when heated to about 40 degrees. It is slightly deliquescence in humid air. Dilute citric acid aqueous solution can Ferment when standing. Therefore, the solid monohydrate or anhydrous should be stored in an airtight container in a cool and dry place. | ||
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