NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005

Ethanolamine

CAS
141-43-5

NH2CH2CH2OH

RTECS
KJ5775000
Synonyms & Trade Names

2-Aminoethanol, beta-Aminoethyl alcohol, Ethylolamine, 2-Hydroxyethylamine, Monoethanolamine
DOT ID & Guide
2491 / 153

Exposure
Limits

NIOSH REL: TWA 3 ppm (8 mg/m3) ST 6 ppm (15 mg/m3)
OSHA PEL: TWA 3 ppm (6 mg/m3)
IDLH
30 ppm See: 141435
Conversion
1 ppm = 2.50 mg/m3
Physical Description
Colorless, viscous liquid or solid (below 51°F) with an unpleasant, ammonia-like odor.
MW: 61.1
BP: 339°F
FRZ: 51°F
Sol: Miscible
VP: 0.4 mmHg
IP: 8.96 eV

Sp.Gr: 1.02
Fl.P: 186°F
UEL: 23.5%
LEL(284°F): 3.0%

Class IIIA Combustible Liquid: Fl.P. at or above 140F and below 200F.
Incompatibilities & Reactivities

Strong oxidizers, strong acids, iron [Note: May attack copper, brass, and rubber.]
Measurement Methods
NIOSH 2007, OSHA PV2111
See: NMAM or OSHA Methods
Personal Protection & Sanitation
(See protection)
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
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
See also: INTRODUCTION   See ICSC CARD: 0152