Bromoethane , AR,98% , 74-96-4
Synonym(s):
Bromoethane;Ethyl bromide
CAS NO.：74-96-4
Empirical Formula: C2H5Br
Molecular Weight: 108.97
MDL number: MFCD00000232
EINECS: 200-825-8
PRODUCT Properties
| Melting point: | -119 °C |
| Boiling point: | 37-40 °C(lit.) |
| Density | 1.46 g/mL at 25 °C(lit.) |
| vapor density | ~3.75 (vs air) |
| vapor pressure | 25.32 psi ( 55 °C) |
| refractive index | n |
| Flash point: | -23 °C |
| storage temp. | Store below +30°C. |
| solubility | Miscible with ethanol, ether, chloroform and organic solvents. |
| form | Liquid |
| color | Clear colorless to slightly yellow |
| explosive limit | 6.7-11.3%(V) |
| Water Solubility | 0.91 g/100 mL (20 ºC) |
| Sensitive | Light Sensitive |
| Merck | 14,3771 |
| BRN | 1209224 |
| Henry's Law Constant | 7.56(x 10-3 atm?m3/mol) at 25 °C (Hine and Mookerjee, 1975) |
| Exposure limits | TLV-TWA 200 ppm (～90 mg/m3)
(ACGIH, MSHA, OSHA, and NIOSH); TLV STEL 250 ppm (～110 mg/m3) (ACGIH);
IDLH 3500 ppm (NIOSH). |
| Dielectric constant | 9.4（20℃） |
| Stability: | Stable. Highly flammable. Readily forms explosive mixtures with air. Note low flash point. Incompatible with alkali metals, aluminium, magnesium, strong bases, water, strong oxidizing agents. May be light sensitive. |
| CAS DataBase Reference | 74-96-4(CAS DataBase Reference) |
| IARC | 3 (Vol. 52, 71) 1999 |
| NIST Chemistry Reference | Ethane, bromo-(74-96-4) |
| EPA Substance Registry System | Bromoethane (74-96-4) |
Description and Uses
Ethyl bromide is a colorless to yellow liquid that becomes a gas at temperatures above 101 °F (38 ℃). Ethyl bromide has an etherlike odor and a burning taste. Ethyl bromide is miscible with alcohols, ether, chloroform, and organic solvents; its water solubility is 9000 mg l-1 at 25 ℃. Ethyl bromide’s vapor density relative to air is 3.76.
Bromoethane is an alkylating agent primarily used as a chemical intermediate in organic synthesis, in the manufacture of pharmaceuticals, and for the ethylation of gasoline. To a lesser extent, it has been used as a fruit and grain fumigant, refrigerant, and solvent. Although proposed occasionally as a general anesthetic in the earlier part of this century, it has not been used to any extent for this purpose (Sayers et al., 1929; Abreu et al., 1939; ITII, 1979; Sittig, 1979; Torkelson and Rowe, 1981;Merck, 1983).
Safety
| Symbol(GHS) |    GHS02,GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H225-H302+H332-H351-H420 |
| Precautionary statements | P202-P210-P301+P312-P304+P340+P312-P308+P313-P502 |
| Hazard Codes | F,Xn |
| Risk Statements | 11-20/22-40 |
| Safety Statements | 36/37 |
| RIDADR | UN 1891 6.1/PG 2 |
| WGK Germany | 1 |
| RTECS | KH6475000 |
| F | 8 |
| Autoignition Temperature | 952 °F |
| TSCA | Yes |
| HS Code | 2903 39 19 |
| HazardClass | 6.1 |
| PackingGroup | II |
| Hazardous Substances Data | 74-96-4(Hazardous Substances Data) |
| Toxicity | LC50 rats, mice (ppm): 27000, 16200 (Vernot) |
| IDLA | 2,000 ppm |
