Lapse in Appropriations
For workplace safety and health, please call 800-321-6742; for mine safety and health, please call 800-746-1553; for Job Corps, please call 800-733-5627 and for Wage and Hour, please call 866-487-9243 (866-4-US-WAGE). This website is currently not being updated due to the suspension of Federal government services. The last update to the site was 10/1/2025. Updates to the site will start again when the Federal government resumes operations.
DIETHYLAMINOETHANOL (2-DIETHYLAMINOETHANOL)†
| CAS # | 100-37-8 |
|---|---|
| Formula |
C₆H₁₅NO |
| Synonyms |
diethylaminoethanol; 2-diethylaminoethyl alcohol; N,N-diethylethanolamine; diethyl-(2-hydroxyethyl)amine; 2-hydroxytriethylamine, 2-diethylaminoethanol |
| Physical description | Colorless liquid with a nauseating, ammonia-like odor. | ||
|---|---|---|---|
| Boiling point | 325°F | Molecular weight | 117.2 |
| Freezing point/melting point | -94°F | Vapor pressure | 1 mmHg |
| Flash point | 140°F | Vapor density | 4.03 |
| Specific gravity | 0.89 | Ionization potential | |
| Lower explosive limit (LEL) | 6.7% | Upper explosive limit (UEL) | 11.7% |
| NFPA health rating | 3 | NFPA fire rating | 2 |
| NFPA reactivity rating | 0 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | 0920 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | Silica gel tube (300/150 mg) [SKC 226-10-04] |
| Sampling time* | |
| Sampling volume (TWA)* | 4-24 L |
| Sampling flow rate (TWA)* | 0.01-0.2 L/min |
| Sampling volume (STEL/Peak/C)* | |
| Sampling flow rate (STEL/Peak/C)* | |
| Analytical method instruments | GC-FID |
| Method reference | NIOSH 2007 (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 Sampler/Sampling media | |
|---|---|
| Bulk Method |
| Device | Detector tube |
|---|---|
| Model/Type | Gastec 180L |
|
Sampling information (see manufacturer instructions) |
1 stroke, 0.12-12 ppm range; uncertainty 16% for 0.6-2.4 ppm, 8% for 2.4-12 ppm |
|
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 |
|||||
|---|---|---|---|---|---|---|---|
| PEL-TWA |
10 ppm (50 mg/m³) |
REL-TWA |
10 ppm (50 mg/m³) |
TLV-TWA |
2 ppm [1991] |
PEL-TWA |
2 ppm (9.6 mg/m³) |
| PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
| PEL-C | REL-C | TLV-C | PEL-C | ||||
| Skin notation |
Y |
Skin notation |
Y |
Skin notation |
Y |
Skin notation |
Y |
| Notes: | Notes: | Notes: | Notes: | ||||
| Health factors: See NIH-NLM PubChem. | IDLH |
100 ppm |
|||||
| Carcinogenic classifications: Not listed | Notes: | ||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - 2-Diethylaminoethanol NIOSH: Pocket Guide to Chemical Hazards - 2-Diethylaminoethanol Literature References
|
Last Updated Date : 12/28/2020