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Sodium Benzoate is used as a preservatives for internal liquid pharmaceuticals, it has the effect of preventing deterioration, acidity and prolonging the shelf life, but excessive dosage can cause very serious harm to the human liver and even carcinogenic. Sodium benzoate has a wide range of uses. Sodium benzoate is an important acidic food preservative, and can also be used in medicines, dyes and so on.

Secondly, sodium benzoate can also be used as food additives, bactericides in the pharmaceutical industry, mordant in the dyestuff industry, plasticizer in the plastics industry, and as an intermediate in organic synthesis such as spices, and then sodium benzoate can be used as an anti-biotic agent. In addition, it can be used in the pharmaceutical industry and plant phytogenetic research, also used as a dye intermediate fungicide and preservative. Since sodium benzoate is cheap, it is now widely used by food companies.

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