Sodium Benzoate, also known as benzoic acid, it is also known as Sodium Benzoate sodium benzoin. E211 is insoluble in water at room temperature in air (especially the hot air) in the micro-volatile, hygroscopic, about room temperature 0.34g/100ml; but soluble in hot water; soluble in ethanol, chloroform and non-volatile oil. In the use of multi-use Sodium Benzoate; acid and E211 and corrosion resistance traits are similar. E211 mostly white granules, odorless or slight benzoin smell, taste sweet, with convergence; soluble in water (room temperature) 53.0g/100ml around, PH of 8 or so; E211 is the acid preservatives in the alkaline medium no bactericidal, antibacterial; Sodium Benzoate corrosion is the best PH 2.5-4.0, when the 5% solution PH5.0 bactericidal effect is not very good. E211 lipophilic large, easy to penetrate the cell membrane into the cell body, interference with membrane permeability, Sodium Benzoate can inhibit the absorption of amino acids the cell membrane; into cells in vivo acidification of intracellular ionized alkaline reserve, and inhibit cell respiration enzyme activity, to prevent condensation of acetyl coenzyme A, Sodium Benzoate to play the purpose of food preservation.
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