China H&Z® Sodium benzoate is mostly white granules, odorless or slightly benzoin smell, slightly sweet taste, with astringency; easily soluble in water (normal temperature) about 53.0g / 100ml, PH around 8; sodium benzoate is also an acidic preservative, in alkali There is no sterilization and bacteriostasis in sexual media; its best antiseptic pH is 2.5-4.0.