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Ethyl bromide

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Synonyms & Trade Names
Bromoethane, Monobromoethane
CAS No.
74-96-4
RTECS No.
KH6475000
DOT ID & Guide
1891 131
Formula
CH₃CH₂Br
Conversion
1 ppm = 4.46 mg/m3
IDLH
2000 ppm
See: 74964
Exposure Limits
NIOSH REL
See Appendix D
OSHA PEL
TWA 200 ppm (890 mg/m3) See Appendix G
Measurement Methods
NIOSH 1011;
OSHA 7
See: NMAM or OSHA Methods
Physical Description
Colorless to yellow liquid with an ether-like odor. [Note: A gas above 101°F.]
Molecular Weight
109.0
Boiling Point
101°F
Freezing Point
-182°F
Solubility
0.9%
Vapor Pressure
375 mmHg
Ionization Potential
10.29 eV
Specific Gravity
1.46
Flash Point
<4°F
Upper Explosive Limit
8.0%
Lower Explosive Limit
6.8%
Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
Incompatibilities & Reactivities
Chemically-active metals such as sodium, potassium, calcium, powdered aluminum, zinc & magnesium
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, respiratory system; central nervous system depression; pulmonary edema; liver, kidney disease; cardiac arrhythmias, cardiac arrest
Target Organs
Eyes, skin, respiratory system, liver, kidneys, cardiovascular system, central nervous system
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet (flammable)
Change:No recommendation
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap flush promptly
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

OSHA

Up to 2000 ppm:
(APF = 10) Any supplied-air respirator
(APF = 50) Any self-contained breathing apparatus with a full facepiece

Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus

Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 1378
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health