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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McHenry is conveniently located at the intersection of State Routes 120 and 31 in northeast Illinois, minutes away from Interstates 90, 94 and 43. Our community is served by METRA, Chicagoland Commuter Rail Service, and PACE suburban bus service.