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- CAS:
- 7726-95-6
- MF:
- Br2
- MW:
- 159.81
Properties
- Melting point::
- −7.2 °C(lit.)
- Boiling point::
- 58.8 °C(lit.)
- Density :
- 3.119 g/mL at 25 °C(lit.)
- vapor density :
- 7.14 (vs air)
- vapor pressure :
- 175 mm Hg ( 20 °C)
- Flash point::
- 113 °C
- storage temp. :
- 2-8°C
- solubility :
- 35g/l
- form :
- Liquid
- pka:
- 7.91(Solvent: Water)
- color :
- Red-brown
- Specific Gravity:
- 3.119
- Odor:
- Odor can be detected at concentrations as low as 0.05 ppm; exposure to concentrations below 1 ppm causes lacrimation.
- Resistivity:
- 7.8E18 μΩ-cm, 20°C
- Water Solubility :
- 35 g/L (20 ºC)
- Electrical Conductivity:
- 1× 10-10S/m
- Thermal Conductivity:
- 0.12 W/(m·K)
- Specific Heat Capacity:
- Cp(liquid): 0.47 J/(g·K); Cp(gas): 0.23 J/(g·K), at 25℃
- Merck :
- 13,1378
- Henry's Law Constant:
- 7.2×10-3 mol/(m3Pa) at 25℃, Burkholder et al. (2019)
- Exposure limits:
- ACGIH:TLV-TWA 0.1 ppm (0.66 mg/m3); TLV-STEL 0.2 ppm (1.3 mg/m3)
OSHA:PEL-TWA 0.1 ppm (0.7 mg/m3)
NIOSH:REL-TWA 0.1 ppm; REL-STEL 0.3 ppm
- Stability::
- Stable. Incompatible with reducing agents, alkali metals, powdered metals, steel, iron, copper, organic materials.
- InChI:
- 1S/BrH/h1H/p-1
- InChIKey:
- CPELXLSAUQHCOX-UHFFFAOYSA-M
- SMILES:
- [Br-]
- CAS DataBase Reference:
- 7726-95-6(CAS DataBase Reference)
- NIST Chemistry Reference:
- Bromine(7726-95-6)
- EPA Substance Registry System:
- Bromine(7726-95-6)
SecurityInformation
- Symbol(GHS) :
-




GHS05,GHS06,GHS08,GHS09
- Signal word :
- Danger
- Hazard statements :
- H302-H314-H331-H340-H351-H400-H330
- Precautionary statements :
- P201-P261-P273-P280-P305+P351+P338-P310-P260-P284-P303+P361+P353-P304+P340-P320-P405-P501a
- Hazard Codes :
- T+,C,N,T
- Risk Statements :
- 26-35-50-40-22-46-45
- Safety Statements :
- 26-45-61-7/9-36/37/39-28-53
- RIDADR :
- UN 1744 (BROMINE or BROMINE SOLUTION)
- WGK Germany :
- 2
- RTECS :
- EF9100000
- TSCA :
- TSCA listed
- HS Code :
- 2801 30 90
- HazardClass :
- 8
- PackingGroup :
- I
- Storage Class:
-
6.1B - Non-combustible, acute toxic Cat. 1 and 2
very toxic hazardous materials
- Hazard Classifications:
-
Acute Tox. 1 Inhalation
Aquatic Acute 1
Eye Dam. 1
Skin Corr. 1A
- Toxicity:
-
LD50 oral (rat) 2600 mg/kg
LC50 inhal (rat) 2700 mg/m3
PEL (OSHA) 0.1 ppm
TLV-TWA (ACGIH) 0.1 ppm (0.7 mg/m3)
STEL (ACGIH) 0.3 ppm (2 mg/m3)
- IDLA:
- 3 ppm
- REACH Registrations:
- Active
- Excepted Quantities:
- Forbidden
- Use:
- bromine was discovered by balard in 1826, but not prepared in quantity until 1860. a member of the halogen group of elements, it is obtained from natural brines from wells in michigan and arkansas. little bromine is extracted today from seawater, which contains only about 85 ppm.
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