Complaint
Sodium Benzoate (formula: C6H5CO2Na,Cas No:532-32-1), E number: E211. It is the sodium salt of benzoic acid. The most common form of sodium benzoate is white granular, odourless or microstrip benzoin odor. Sodium benzoate dissolves in (normal temperature) water easily around 53.0g/100ml. PH value is around 8. Sodium benzoate is also acidic preservative, it has nobactericidal and bacteriostatic effect. The most suitable value of antiseptic is 2.5-4.0.
| Check item | Specifications | Check conclusion |
| (Content) | ≥99.0% | 99.58 |
| (Loss on drying) | ≤1.5% | 0.98 |
| (Heavy metals as pb ) | ≤0.0001% | <0.0001 |
| (acidity and alkalinity) | ≤0.2% | -- |
| (As ) | ≤0.0002% | 0.0001 |
| (CL) | ≤0.02% | -- |
| (chloride compound) | ≤0.03% | 0.01 |
| (sulphate) | ≤0.1% | 0.07 |
| (Hq) | ≤0.0001% | Pass |
| (oxide) | Pass | |
| (particle size) | 0.2-0.3mm | 0.2 |
| (Bulk density) | 700-750 kg/m3 | 710 kg/m3 |
| (colour of solution ) | Y6 | Y6 |
Uses | 1. Sodium benzoate is mainly used as food preservatives, it can also be used in making medicine and dye etc. 2. Used in medicine industry and plant genetic research, as well as dye intermediate, sterilizing agent and preservative. 3. Preservative; antimicrobial 4. Sodium benzoate is also an important acid type food preservatives, it becomes effective form benzoic acid when using. The range of application and the usage amount refers to benzoic acid. In addition, it can also be used as preservative of fodder. |
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Cautions | Sodium benzoate and benzoic acid are used as preservative widely in Food processing. In some countries, it is used in food processing. Benzoic acid can play a role under the free condition, so it has good result in acid food. Benzoic acid is normally used in carbonated beverage, soy, preserved fruit and fruit and vegetable drinks etc. |
