TRIETHANOLAMINE

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 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
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.

Bulk/Wipe Method
Wipe Sampler/Sampling media
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		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

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

TRIETHANOLAMINE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References