Sodium bromide

Sodium bromide
Names
	IUPAC name Sodium bromide
Identifiers
CAS Number	anhydrous: 7647-15-6 ; dihydrate: 13466-08-5 ;
3D model (JSmol)	anhydrous: Interactive image;
ChEMBL	anhydrous: ChEMBL1644694 ;
ChemSpider	anhydrous: 22712 ;
ECHA InfoCard	100.028.727
PubChem CID	anhydrous: 253881;
RTECS number	anhydrous: VZ3150000;
UNII	anhydrous: LC1V549NOM ;
CompTox Dashboard (EPA)	anhydrous: DTXSID3034903 ;
	InChI InChI=1S/BrH.Na/h1H;/q;+1/p-1 Key: JHJLBTNAGRQEKS-UHFFFAOYSA-M ; anhydrous: InChI=1/BrH.Na/h1H;/q;+1/p-1 Key: JHJLBTNAGRQEKS-REWHXWOFAR;
	SMILES anhydrous: [Na+].[Br-];
Properties
Chemical formula	NaBr
Molar mass	102.894 g·mol−1
Appearance	White powder, hygroscopic
Density	3.21 g/cm3 (anhydrous); 2.18 g/cm3 (dihydrate)
Melting point	747 °C (1,377 °F; 1,020 K) ; (anhydrous); 36 °C (97 °F; 309 K); (dihydrate) decomposes
Boiling point	1,390 °C (2,530 °F; 1,660 K)
Solubility in water	71.35 g/100 mL (−20 °C); 79.52 g/100 mL (0 °C); 94.32 g/100 mL (25 °C); 104.9 g/100 mL (40 °C); 116.2 g/100 mL (100 °C)
Solubility	Soluble in alcohol, liquid ammonia, pyridine, hydrazine, SO2; Insoluble in acetone, acetonitrile
Solubility in methanol	17.3 g/100 g (0 °C); 16.8 g/100 g (20 °C); 16.1 g/100 g (40 °C); 15.3 g/100 g (60 °C)
Solubility in ethanol	2.45 g/100 g (0 °C); 2.32 g/100 g (20 °C); 2.29 g/100 g (30 °C); 2.35 g/100 g (70 °C)
Solubility in formic acid	19.3 g/100 g (18 °C); 19.4 g/100 g (25 °C)
Solubility in glycerol	38.7 g/100 g (20 °C)
Solubility in dimethylformamide	3.2 g/100 g (10.3 °C)
Vapor pressure	1 torr (806 °C); 5 torr (903 °C)
Magnetic susceptibility (χ)	−41.0·10−6 cm3/mol
Thermal conductivity	5.6 W/(m·K) (150 K)
Refractive index (nD)	1.6428 (24 °C); nKrF = 1.8467 (24 °C); nHe–Ne = 1.6389 (24 °C)
Viscosity	1.42 cP (762 °C); 1.08 cP (857 °C); 0.96 cP (937 °C)
Structure
Crystal structure	Cubic
Lattice constant	a = 5.97 Å
Thermochemistry
Heat capacity (C)	51.4 J/(mol·K)
Std molar; entropy (S⦵298)	86.82 J/(mol·K)
Std enthalpy of; formation (ΔfH⦵298)	−361.41 kJ/mol
Gibbs free energy (ΔfG⦵)	−349.3 kJ/mol
Pharmacology
Legal status	AU: S4 (Prescription only) /S5;
Hazards
NFPA 704 (fire diamond)	2 0 0
Flash point	800 °C (1,470 °F; 1,070 K)
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	3500 mg/kg (rats, oral)
Safety data sheet (SDS)	External MSDS
Related compounds
Other anions	Sodium fluoride; Sodium chloride; Sodium iodide; Sodium astatide;
Other cations	Lithium bromide; Potassium bromide; Rubidium bromide; Caesium bromide; Francium bromide;
	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 bromide is an inorganic compound with the formula Na Br. It is a high-melting white, crystalline solid that resembles sodium chloride. It is a widely used source of the bromide ion and has many applications.