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Ethanolamine

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Synonyms & Trade Names
2-Aminoethanol, β-Aminoethyl alcohol, Ethylolamine, 2-Hydroxyethylamine, Monoethanolamine
CAS No.
141-43-5
RTECS No.
KJ5775000
DOT ID & Guide
2491 153
Formula
NH₂CH₂CH₂OH
Conversion
1 ppm = 2.50 mg/m3
IDLH
30 ppm
See: 141435
Exposure Limits
NIOSH REL
TWA 3 ppm (8 mg/m3) ST 6 ppm (15 mg/m3)
OSHA PEL
TWA 3 ppm (6 mg/m3) See Appendix G
Measurement Methods
NIOSH 2007;
OSHA PV2111
See: NMAM or OSHA Methods
Physical Description
Colorless, viscous liquid or solid (below 51°F) with an unpleasant, ammonia-like odor.
Molecular Weight
61.1
Boiling Point
339°F
Freezing Point
51°F
Solubility
Miscible
Vapor Pressure
0.4 mmHg
Ionization Potential
8.96 eV
Specific Gravity
1.02
Flash Point
186°F
Upper Explosive Limit
23.5%
Lower Explosive Limit
(284°F): 3.0%
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
Incompatibilities & Reactivities
Strong oxidizers, strong acids, iron [Note: May attack copper, brass, and rubber.]
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, respiratory system; drowsiness
Target Organs
Eyes, skin, respiratory 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 or contaminated
Change:Daily
Provide:Eyewash
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Water flush promptly
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

NIOSH/OSHA

Up to 30 ppm:
(APF = 10) Any chemical cartridge respirator with cartridge(s) providing protection against the compound of concern*
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern
(APF = 25) Any powered, air-purifying respirator with cartridge(s) providing protection against the compound of concern*
(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 canister providing protection against the compound of concern
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0152
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health