Sodium benzoate has the chemical formula NaC 7 H 5 O 2; it is a widely used food preservative, with an E number of E211.It is the sodium salt of benzoic acid and exists in this form when dissolved in water. It can be produced by reacting sodium hydroxide with benzoic acid.s a food additive, sodium benzoate has the E number E211. It is bacteriostatic and fungistatic under acidic conditions.
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VIDEO Scroll down to watch highlights & Colin Montgomerie: Rory McIlroy is world class. 1  Eyes on the prize: Rory McIlroy has won the WGC-Bridgestone Invitational and in turn becomes world No 1. 2  This is coming with me! 3  Just pipped! McIlroy successfully chased down Spaniard Sergio Garcia during the final day.