A1230112
Bromochloromethane , 99.5% , 74-97-5
CAS NO.：74-97-5
Empirical Formula: CH2BrCl
Molecular Weight: 129.38
MDL number: MFCD00000880
EINECS: 200-826-3
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | −88 °C(lit.) |
| Boiling point: | 68 °C(lit.) |
| Density | 1.991 g/mL at 25 °C(lit.) |
| vapor density | 4.5 (vs air) |
| vapor pressure | 117 mm Hg ( 20 °C) |
| refractive index | n |
| Flash point: | 11 °C |
| storage temp. | 2-8°C |
| solubility | Soluble in acetone, alcohol, benzene, ether (Weast, 1986), and many other solvents, particularly
chlorinated hydrocarbons. |
| Specific Gravity | 1.991 |
| Water Solubility | 9 g/L (20 ºC) |
| BRN | 1730801 |
| Henry's Law Constant | (x 10-3 atm?m3/mol):
1.44 at 25 °C (approximate - calculated from water solubility and vapor pressure) |
| Exposure limits | NIOSH REL: TWA 200 ppm (1,050 mg/m3), IDLH 2,000 ppm; OSHA PEL:
TWA 200 ppm; ACGIH TLV: TWA 200 ppm (adopted) |
| Dielectric constant | 7.8（Ambient） |
| Stability: | Stable, but may discolour in light. Incompatible with aluminium, magnesium, zinc, calcium, strong oxidizing agents. |
| LogP | 1.410 |
| CAS DataBase Reference | 74-97-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Methane, bromochloro-(74-97-5) |
| EPA Substance Registry System | Halon 1011 (74-97-5) |
Description and Uses
Chlorobromomethane is a clear, colorless topale yellow liquid with a chloroform-like odor. Odor threshold=400 ppm. Molecular weight=129.39; Specific gravity (H2O:1)=1.93; Boiling point=68.3℃; Freezing/Melting point=2 88℃; Vapor pressure=115 mmHg at20℃. Hazard Identification (based on NFPA 704 M RatingSystem): Health 2, Flammability 0, Reactivity 0. Insolublein water.
Fire fighting agent
Safety
| Symbol(GHS) |   GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H315-H318-H332-H335-H420 |
| Precautionary statements | P261-P280-P305+P351+P338 |
| Hazard Codes | Xi,N,Xn,T,F |
| Risk Statements | 37/38-41-59-36/37/38-20-39/23/24/25-23/24/25-11-36/38 |
| Safety Statements | 26-39-59-37/39-45-36/37-16-7 |
| OEB | A |
| OEL | TWA: 200 ppm (1050 mg/m3) |
| RIDADR | UN 1887 6.1/PG 3 |
| WGK Germany | 2 |
| RTECS | PA5250000 |
| Hazard Note | Irritant |
| HazardClass | 6.1(b) |
| PackingGroup | III |
| HS Code | 29034980 |
| Hazardous Substances Data | 74-97-5(Hazardous Substances Data) |
| Toxicity | LC50 (inhalation) for mice 15,850 mg/m3/8-h, rats 28,800 ppm/15-min (quoted, RTECS, 1985). Acute oral LD50 for rats 5,000 mg/kg, mice 4,300 mg/kg (quoted, RTECS, 1985). |
| IDLA | 2,000 ppm |
