Sodium benzoate

Sodium benzoate
	; Skeletal formula
	; Ball-and-stick model of part of the crystal structure
	; Ball-and-stick model of packing in the crystal structure
Names
	Preferred IUPAC name Sodium benzoate
	Other names E211, benzoate of soda
Identifiers
CAS Number	532-32-1 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:113455 ;
ChEMBL	ChEMBL1356 ;
ChemSpider	10305 ;
ECHA InfoCard	100.007.760
E number	E211 (preservatives)
PubChem CID	517055;
RTECS number	DH6650000;
UNII	OJ245FE5EU ;
CompTox Dashboard (EPA)	DTXSID1020140 ;
	InChI InChI=1S/C7H6O2.Na/c8-7(9)6-4-2-1-3-5-6;/h1-5H,(H,8,9);/q;+1/p-1 Key: WXMKPNITSTVMEF-UHFFFAOYSA-M ; InChI=1/C7H6O2.Na/c8-7(9)6-4-2-1-3-5-6;/h1-5H,(H,8,9);/q;+1/p-1 Key: WXMKPNITSTVMEF-REWHXWOFAY;
	SMILES [Na+].[O-]C(=O)c1ccccc1;
Properties
Chemical formula	C7H5NaO2
Molar mass	144.105 g·mol−1
Appearance	white or colourless crystalline powder
Odor	odorless
Density	1.497 g/cm3
Melting point	410 °C (770 °F; 683 K)
Solubility in water	62.65 g/100 mL (0 °C); 62.84 g/100 mL (15 °C); 62.87 g/100 mL (30 °C); 74.2 g/100 mL (100 °C)
Solubility	soluble in liquid ammonia, pyridine
Solubility in methanol	8.22 g/100 g (15 °C); 7.55 g/100 g (66.2 °C)
Solubility in ethanol	2.3 g/100 g (25 °C); 8.3 g/100 g (78 °C)
Solubility in 1,4-Dioxane	0.818 mg/kg (25 °C)
Pharmacology
ATC code	A16AX11 (WHO)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H319
Precautionary statements	P305+P351+P338
NFPA 704 (fire diamond)	2 1 0
Flash point	100 °C (212 °F; 373 K)
Autoignition; temperature	500 °C (932 °F; 773 K)
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	4100 mg/kg (oral, rat)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Sodium benzoate also known as benzoate of soda is the sodium salt of benzoic acid, widely used as a food preservative (with an E number of E211) and a pickling agent. It appears as a white crystalline chemical with the formula C₆H₅COONa.

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