ETHANOLAMINE (2-AMINOETHANOL)†

Chemical Identification
CAS # 141-43-5
Formula
 

C₂H₇NO

Synonyms
 

2-aminoethanol; β-aminoethyl alcohol; ethylolamine; 2-hydroxyethylamine; monoethanolamine

Physical Properties
Physical description Colorless, viscous liquid or solid (below 51°F) with an unpleasant, ammonia-like odor.
Boiling point 339°F Molecular weight 61.1
Freezing point/melting point 51°F Vapor pressure 0.4 mmHg
Flash point 186°F Vapor density 2.1
Specific gravity 1.02 Ionization potential 8.96 eV
Lower explosive limit (LEL) 5.5% Upper explosive limit (UEL) 17%
NFPA health rating 3 NFPA fire rating 2
NFPA reactivity rating 0 NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs
Monitoring Methods Used by OSHA
Analyte code (IMIS no.) 1030
Sampling group
Sampler/Sampling media XAD-2 tube (80/40) coated with 10% 1-naphthylisothiocyanate (NITC) [SKC 226-30-18]
Sampling time*
 

100 min

Sampling volume (TWA)*
 

10 L

Sampling flow rate (TWA)*
 

0.1 L/min

Sampling volume (STEL/Peak/C)*
 

1.5 L

Sampling flow rate (STEL/Peak/C)*
 

0.1 L/min

Analytical method instruments HPLC-UV
Method reference OSHA PV2111 (partially validated)
Notes
 

 

Special requirements
 

 

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Wipe Method
Sampler/Sampling media
 

 

Bulk Method
Bulk Method
 

 

On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)
Exposure Limits
OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA
 

3 ppm (6 mg/m³)

REL-TWA
 

3 ppm (8 mg/m³)

TLV-TWA
 

3 ppm [1985]

PEL-TWA
 

3 ppm (8 mg/m³)

PEL-STEL
 

 

REL-STEL
 

6 ppm (15 mg/m³)

TLV-STEL
 

6 ppm [1985]

PEL-STEL
 

6 ppm (15 mg/m³)

PEL-C
 

 

REL-C
 

 

TLV-C
 

 

PEL-C
 

 

Skin notation
 

N

Skin notation
 

N

Skin notation
 

N

Skin notation
 

N

Notes:
 

See 29 CFR 1910.1000 Table Z-1.

Notes:
 

 

Notes:
 

 

Notes:
 

 

Health factors:  See NIH-NLM PubChem. IDLH
 

30 ppm

Carcinogenic classifications: Not listed Notes:
 

 

AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
 

 

Last Updated Date : 12/28/2020