Salts & Minerals
REACH
Potassium bromide
CAS Number
7758-02-3
EC Number
231-830-3
Abbreviation
KBr
What is Potassium bromide?
Potassium bromide (CAS 7758-02-3), also abbreviated KBr, is an inorganic bromide salt used in pharmaceutical, industrial and specialty chemical manufacturing.
Where is Potassium bromide used?
- Pharmaceutical manufacturing: intermediate in active ingredient synthesis and buffering agent in formulation development
- Plastics and polymers: flame retardant precursor in halogen-based fire suppression systems
- Catalysis: modifier or precursor in oxidation and bromination reactions
- Photographic and printing operations use it in emulsions and plate processing chemistry.
Good to know: Pharmaceutical-grade material meets USP and BP specifications; technical grade is offered where pharmacopeial certification is not required.
Other Names (Synonyms)
KBr|Bromide salt of potassium|Potassium bromide (KBr)|Bromure de potassium|Kalii bromidum|Kali bromatum|Tripotassium tribromide
What are the physical properties of Potassium bromide?
Melting Point 730 °C
Boiling Point 1435 °C
Density 2.75 g/cm³ @ Temp: 25 °C
Flash Point 1435°C
Appearance White, crystalline granules or pow- der; pungent, strong, bitter, saline taste; somewhat hygroscopic.Solu- ble in water and glycerol; slightly soluble in alcohol and ether.
Color White
Form random crystals
Water Solubility 650 g/L (20 ºC)
Vapor Pressure 175 mm Hg ( 20 °C)
Refractive Index 1.559
pH 5.0-8.8 (25℃, 50mg/mL in H2O)
Log P 1 at 25℃
How is Potassium bromide classified and handled safely? Learn More
Warning
GHS07· Irritant
Hazard Statements
H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
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 Potassium bromide?
HS Code 28275100
UN Number 1744
ADR Class 8
Packing Group I
Storage Class 11 - Combustible Solids
WGK (Germany) 2