Sodium benzoate

Names
IUPAC name sodium benzoate
Other names E211, benzoate of soda
Identifiers
CAS Number	532-32-1 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:113455 N
ChemSpider	10305 Y
ECHA InfoCard	100.007.760
E number	E211 (preservatives)
PubChem CID	517055
RTECS number	DH6650000
UNII	OJ245FE5EU Y
InChI InChI=1S/C7H6O2.Na/c8-7(9)6-4-2-1-3-5-6;/h1-5H,(H,8,9);/q;+1/p-1 Y Key: WXMKPNITSTVMEF-UHFFFAOYSA-M Y 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	C 7 H 5 Na O 2
Molar mass	144.10 g·mol −1
Appearance	white or colorless crystalline powder
Odor	odorless
Density	1.497 g/cm 3
Melting point	410 °C (770 °F; 683 K)
Solubility in water	62.69 g/100 mL (0 °C) 62.78 g/100 mL (15 °C) 62.87 g/100 mL (30 °C) 71.11 g/100 mL (100 °C) [1]
Solubility	soluble in liquid ammonia, pyridine [1]
Solubility in methanol	8.22 g/100 g (15 °C) 7.55 g/100 g (66.2 °C) [1]
Solubility in ethanol	2.3 g/100 g (25 °C) 8.3 g/100 g (78 °C) [1]
Solubility in 1,4-Dioxane	0.818 mg/kg (25 °C) [1]
Pharmacology
ATC code	A16AX11 ( WHO )
Hazards
GHS pictograms	[2]
GHS signal word	Warning
GHS hazard statements	H319 [2]
GHS precautionary statements	P305+351+338 [2]
NFPA 704	1 2 0
Flash point	100 °C (212 °F; 373 K)
Autoignition temperature	500 °C (932 °F; 773 K)
Lethal dose or concentration ( LD , LC ):
LD 50 (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).
N verify (what is Y N ?)
Infobox references

Sodium benzoate is a substance which 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.