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NIOSH

BROMOETHANE

ICSC: 1378

Ethyl bromide
CH3CH2Br / C2H5Br
Molecular mass: 109.0
ICSC # 1378 		CAS # 74-96-4
RTECS # KH6475000
UN # 1891
EC # 602-055-00-1
October 18, 2001 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Extremely flammable.
NO open flames, NO sparks, and NO smoking.
Powder, water spray, foam, carbon dioxide .
EXPLOSION


EXPOSURE
STRICT HYGIENE!
IN ALL CASES CONSULT A DOCTOR!
•INHALATION Drowsiness. Unconsciousness.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
•SKIN
Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
•EYES Pain. Redness.
Safety goggles, or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION
Do not eat, drink, or smoke during work.
Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Evacuate danger area! Consult an expert! Remove all ignition sources. Ventilation. Collect leaking liquid in sealable metal containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Chemical protection suit including self-contained breathing apparatus.
Fireproof. Separated from incompatible materials . Cool. Dry. Well closed. Ventilation along the floor.
Unbreakable packaging; put breakable packaging into closed unbreakable container.
Note: E
F symbol
Xn symbol
R: 11-20/22-40
S: 2-36/37
UN Hazard Class: 6.1
UN Packing Group: II
ICSC: 1378 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

BROMOETHANE

ICSC: 1378

I

M

P

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R

T

A

N

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D

A

T

A

PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:
The vapour is heavier than air and may travel along the ground; distant ignition possible.

CHEMICAL DANGERS:
The substance decomposes on burning producing toxic and corrosive gases . Reacts violently with oxidants, strong bases,aluminium,zinc and magnesium. Attacks plastic and rubber.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 5 ppm as TWA (skin); A3 (confirmed animal carcinogen with unknown relevance to humans); (ACGIH 200).
MAK:
Carcinogen category: 2;
(DFG 2004).
OSHA PEL†: TWA 200 ppm (890 mg/m3)
NIOSH REL: See Appendix D
NIOSH IDLH: 2000 ppm See: 74964


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation and by ingestion.

INHALATION RISK:
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes . The substance may cause effects on the central nervous system . Exposure may result in unconsciousness.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

PHYSICAL
PROPERTIES

Boiling point: 38.4°C
Melting point: -119°C
Relative density (water = 1): 1.4
Solubility in water, g/100 ml at 20°C: 0.91
Vapour pressure, kPa at 20°C: 51
Relative vapour density (air = 1): 3.76
Relative density of the vapour/air-mixture at 20°C (air = 1): 2.4
Flash point: -20°C c.c.
Auto-ignition temperature: 511°C
Explosive limits, vol% in air: 6.8-11
Octanol/water partition coefficient as log Pow: 1.61

ENVIRONMENTAL
DATA


N O T E S

Card has been partly updated in April 2005. See section Occupational Exposure Limits.
NFPA Code: H2; F1; R0
Transport Emergency Card: TEC (R)-61S1891

ADDITIONAL INFORMATION



ICSC: 1378 BROMOETHANE
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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