TRIETHANOLAMINE

Chemical Identification
Chemical Identification
CAS # 102-71-6
Formula

C₆H₁₅NO₃

Synonyms

tris(2-hydroxyethyl)amine; tri(hydroxyethyl)amine; trolamine; TEA (amino alcohol); nitrilo-2,2',2''-triethanol; triethylolamine; daltogen

Physical Properties
Physical Properties
Physical description Oily liquid with a mild ammonia odor.
Boiling point 635.7°F (decomposes) Molecular weight 149.19
Freezing point/melting point 70.9°F Vapor pressure <0.01 mmHg
Flash point 365°F Vapor density 5.14
Specific gravity 1.13 Ionization potential
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating 2 NFPA fire rating 1
NFPA reactivity rating 0 NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs
Monitoring Methods Used by OSHA
Monitoring Methods Used by OSHA
Analyte code (IMIS no.) T185
Sampling group
Sampler/Sampling media GFF (37 mm), Type A/E [AP4003705]
Sampling time*

100 min

Sampling volume (TWA)*

100 L

Sampling flow rate (TWA)*

1 L/min

Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments GC-FID
Method reference OSHA PV2141 (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
Wipe Method
Sampler/Sampling media
Bulk Method
Bulk Method
On-Site Screening Techniques
On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)
Exposure Limits
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 REL-TWA TLV-TWA

5 mg/m³ [1990]

PEL-TWA

5 mg/m³

PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

NA

Skin notation

NA

Skin notation

N

Skin notation

N

Notes:

Not established

Notes:

Not established

Notes: Notes:
Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: IARC-3 Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Triethanolamine

NIOSH: Pocket Guide to Chemical Hazards - Triethanolamine

Literature References

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Triethanolamine. See annual publication for most recent information.
  • NIOSH Registry of Toxic Effects of Chemical Substances (RTECS): KL9275000: Ethanol, 2,2',2"- nitrilotri-.
  • Blum, A. and Lischka, G.: Allergic contact dermatitis from mono-, di- and triethanolamine. Contact Dermatitis 36(3): 166, 1997.
  • National Toxicology Program: NTP toxicology and carcinogenesis studies of triethanolamine (Cas No. 102-71-6) in B6C3F1 mice (dermal studies). Nat. Toxicol. Program Tech. Rep. Ser. (518): 5-163, 2004.
  • Pohanish, R.P. (editor): Ethanolamines. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1028-1031.
  • Savonius, B, Keskinen, H., Tuppurainen, M. and Kanerva, L.: Occupational asthma caused by ethanolamines. Allergy 49(10): 877-881, 1994.
  • Stott, W.T., Radtke, B.J., Linscombe, V.A., Mar, M.-H. and Zeisel, S.H.: Evaluation of the potential of triethanolamine to alter hepatic choline levels in female B6C3F1 mice. Toxicol. Sci. 79(2): 242-247, 2004.
  • Stott, W.T., Waechter, J.M., Rick, D.L. and Mendrala, A.L.: Absorption, distribution, metabolism and excretion of intravenously and dermally administered triethanolamine in mice. Food Chem. Toxicol.38(11): 1043-1051, 2000.

Last Updated Date : 01/13/2021