Physical Properties
 1. Content: ≥ 99.5%

 2. Appearance: Qualified

 3. Water insoluble: 0.01

 4. Alkalinity: Qualified

 5. Chloride: 0.01

 6. Sulfate: 0.005;
 7. Iron: 0.0005

 8. Heavy metals (as Pb): 0.0005

 Sodium benzoate is a preservative used in pharmaceutical oral liquid, sour to prevent deterioration and prolong shelf-life results, the amount of human liver would be too much harm, and even cancer. According to GB2760-1996 national health standards, the meat should not be used in the food system, sodium benzoate.

 "Sudan" after the incident, along with various food additives caused great public concern and was frequently "exposed." According to Chinas GB2760-1996 "food additives health standards" requirement, in meat products, food preservatives sodium benzoate and benzoic acid not detected. But some reports, such as "benzoic acid and sodium benzoate is in force prohibiting the use of meat, because the toxic", "acid containing benzene, benzene is a carcinogen," and so on, these reports are accurate science? This paper describes the benzoic acid and sodium benzoate physical and chemical properties, corrosion mechanism of toxicity and its detoxification mechanism in the human body, as well as foreign use of these two preservatives, designed to explore the possibility of benzoic acid and sodium benzoate Add meat used to provide reference.

 Physical and chemical properties
 CAS: 65-85-0 Molecular formula: C7H6O2 Molecular Weight: 122.12 Melting Point: 122-123 ℃