1-AMINO-2-PROPANOL

Lapse in Appropriations

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Chemical Identification
CAS #	78-96-6
Formula	C₃H₉NO
Synonyms	1-aminopropan-2-ol; ⍺-aminoisopropyl alcohol; 2-hydroxypropylamine; isopropanolamine; 1-methyl-2-aminoethanol

Physical Properties
Physical description	A colorless liquid with a slight ammonia-like odor.
Boiling point	313-316°F	Molecular weight	75.13
Freezing point/melting point	34.5°F	Vapor pressure	2.59 mmHg
Flash point	171°F	Vapor density	2.6
Specific gravity	0.961	Ionization potential
Lower explosive limit (LEL)	2.20%	Upper explosive limit (UEL)	12%
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.)	A606
Sampling group
Sampler/Sampling media	XAD-2 tube (80/40) coated with 10% 1-naphthylisothiocyanate (NITC) [SKC 226-30-18]
Sampling time^*	200 min
Sampling volume (TWA)^*	20 L
Sampling flow rate (TWA)^*	0.1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	HPLC
Method reference	OSHA PV2122 (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		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes: Not established		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Monoisopropanolamine

NIOSH: Pocket Guide to Chemical Hazards - Monoisopropanolamine

Literature References

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: UA5775000
International Chemical Safety Cards (WHO/IPCS/ILO): Isopropanolamine.
Detwiler-Okabayashi, K.A. and Schaper, M.M.: Respiratory effects of a synthetic metalworking fluid and its components. Arch. Toxicol. 70(3-4): 195-201, 1996.
Geier, J., et al.: Patch testing with components of water-based metalworking fluids: results of a multicentre study with a second series. Contact Dermatitis 55(6): 322-329, 2006.
Hervin, R.L. and Lucas, J.B.: Occupational Health Case Report No. 8. Monoisopropanolamine. J. Occup. Med. 16(5): 355-357, 1974.
No authors listed: Summary of Evaluations Performed by the Joint FAO/WHO Expert Committee on Food Additives, 1-Amino-2-propanol.

Last Updated Date : 12/15/2020

Lapse in Appropriations

1-AMINO-2-PROPANOL

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References