Sodium Benzoate
Legal Code:GB12493-90(17.002);INS 211;EEC No.E211;
CAS:[532-32-1]
Molecular Formula:C7H5NaO2
Molecular Weight:144.11
Properties
white granules, crystalline powder or flakes. Odorless or with slight odor of benzoin. Stable in the air. Extremely easily soluble in water (53.0g/100ml,25℃). Soluble in ethanol (1.4g/100ml). PH of aqueous solution is 8. Its fermentation resistanc eand sterilizability are weaker than those of benzoic acid. When PH is at 3.5, 0.05% solution can completely resist the growth of yeast. When PH is at 6.5, concentration above 2.5% is needed.
Use
Preservative; biocide resisting agent
Packing
paper-plastic composition bag lined with polyethylene film food bag, 25kg.
| Parameter | BP-98 | GB1902-2005 |
| Form | White powder and with styrax benzoin smell | White powder and with styrax benzoin smell |
| Assay | ≥ 99.0 % -100.5 % | ≥ 99.0 % -100.5 % |
| Loss on drying | ≤ 2.0 % | ≤ 1.5 % |
| Dissolve test | Meets Y 6 | passes test |
| Acidity & Alkalinity | Meets standard | passes test |
| 1:10 solution chroma | --- | ≤ 20 Hazen |
| Sulphate(as SO4) | --- | ≤ 0.1 % |
| Heavy metals(as Pb) | ≤ 0.001 % | ≤ 0.001 % |
| Chloride(as Cl) | ≤ 0.02 % | ≤ 0.03 % |
| Arsenic(as As) | --- | ≤ 2 mg/kg |
| Easy oxide | --- | passes test |
| Total CL content | ≤ 0.03 % | --- |
| O-Phthalic acid | --- | passes test |
