Salts & Minerals
REACH
Sodium bromide
CAS Number
7647-15-6
EC Number
231-599-9
Abbreviation
NaBr
What is Sodium bromide?
Sodium bromide (CAS 7647-15-6), also referenced as NaBr, is an inorganic bromide salt.
Where is Sodium bromide used?
- Oil and gas: key component of high-density clear brine fluids for wellbore completion and workover
- Pharmaceuticals: intermediate in synthesis of active ingredients and sedative-class compounds
- Water treatment and pool sanitation: activates oxidizing biocides to control microbial growth in recirculating systems
- Flame retardants: bromine source and synergist in halogenated systems for plastics and polymers
- It functions primarily as a bromide ion source.
Good to know: Precise density control is critical in oilfield brine applications to ensure safety and efficiency during drilling. A bromide counterion may be required for the final chemical structure.
Commercial specifications
- Standard grades: technical, pharmaceutical (USP/BP), oilfield-grade, each with distinct purity requirements
- Packaging: bags, drums, bulk quantities
Other Names (Synonyms)
Trisodium tribromide|NaBr|Bromide salt of sodium|Sodium bromide (NaBr)|Natrum bromatum|Caswell No. 750A|Sanibrom 40
What are the physical properties of Sodium bromide?
Melting Point 755 °C
Boiling Point 1390 °C
Density 3.21 g/cm³
Flash Point 1390°C
Appearance white powder
Color White
Form Powder
Water Solubility 905 g/L (20 ºC)
Vapor Pressure 1 mm Hg ( 806 °C)
Refractive Index 1.6412
pH 5.74 (430g/l, H2O, 22.5℃)
Log P 0 at 25℃
How is Sodium bromide classified and handled safely? Learn More
Danger
GHS07· Irritant GHS08· Health Hazard
Hazard Statements
H319 Causes serious eye irritation
H336 May cause drowsiness or dizziness
H360 May damage fertility or the unborn child
H361 Suspected of damaging fertility or the unborn child
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
Which trade and regulatory codes apply to Sodium bromide?
HS Code 28275100
Storage Class 13 - Non Combustible Solids
WGK (Germany) 1