CAS No.7647-15-6 Sodium bromide

Sodium bromide

Identification
Name Sodium bromide
CAS Registry Number 7647-15-6
Synonyms SODIUM BROMIDE;SODIUM BROMIDE 40;SODIUM BROMIDE 45;BROMIDE STANDARD;BROMIDE STANDARD SOLUTION;BROMIDE;BROMIDE ION CHROMATOGRAPHY STANDARD;Bromide salt of sodium
Molecular Structure Sodium bromide   7647-15-6
Molecular Formula BrNa
Molecular Weight 102.89
mp: 755 ℃(lit.)
Hazard Codes: Details
Risk Statements: 36/37/38
Safety Statements: 24/25-25-36-26
HS Code: 28275100

CAS 7647-15-6 Wiki / 7647-15-6 MSDS

Sodium bromide
3D model of sodium bromide
Sodium bromide powder
Names
IUPAC name
Sodium bromide
Identifiers
CAS Number
  • 7647-15-6 YesY
  • 13466-08-5 (dihydrate) N
3D model (Jmol)
  • Interactive image
ChemSpider
  • 22712 YesY
ECHA InfoCard 100.028.727
PubChem CID
  • 253881
RTECS number VZ3150000
UNII
  • LC1V549NOM YesY
Properties
Chemical formula
BrNa
Molar mass 102.89 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[1]
Boiling point 1,390 °C (2,530 °F; 1,660 K) [1]
Solubility in water
71.35 g/100 mL (−20 °C)
79.52 g/100 mL (0 °C)
94.32 g/100 mL (25 °C)[2]
104.9 g/100 mL (40 °C)
116.2 g/100 mL (100 °C)[3]
Solubility Soluble in alcohol, liquid ammonia, pyridine, hydrazine, SO2, amine
Insoluble in acetone, acetonitrile[2]
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)[2]
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)[2]
Solubility in formic acid 19.3 g/100 g (18 °C)
19.4 g/100 g (25 °C)[2]
Solubility in glycerol 38.7 g/100 g (20 °C)[2]
Solubility in dimethylformamide 3.2 g/100 g (10.3 °C)[2]
Vapor pressure 1 torr (806 °C)
5 torr (903 °C)[1]
Magnetic susceptibility (χ)
−41.0·10−6 cm3/mol
Thermal conductivity 5.6 W/m·K (150 K)[4]
Refractive index (nD)
1.6428 (24 °C)
nKrF = 1.8467 (24 °C)
nHe–Ne = 1.6389 (24 °C)[5]
Viscosity 1.42 cP (762 °C)
1.08 cP (857 °C)
0.96 cP (937 °C)[2]
Structure
Crystal structure
Cubic
Lattice constant
a = 5.97 Å[4]
Thermochemistry
Specific
heat capacity (C)
51.4 J/mol·K[2]
Std molar
entropy (So298)
86.82 J/mol·K[2]
Std enthalpy of
formation (ΔfHo298)
−361.41 kJ/mol[2]
Gibbs free energy (ΔfG˚)
−349.3 kJ/mol[2]
Hazards
Safety data sheet External MSDS
R-phrases (outdated) R36
S-phrases (outdated) (S2), S24/25, S46
NFPA 704
[6]
Flammability code 0: Will not burn. E.g., waterHealth code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroformReactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogenSpecial hazards (white): no codeNFPA 704 four-colored diamond
0
2
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)
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).
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Infobox references

Sodium bromide is an inorganic compound with the formula NaBr. 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.[7]