DIETHYLENE GLYCOL MONOBUTYL ETHER (BUTYL CARBITOL)

Chemical Identification
CAS #	112-34-5
Formula	C₈H₁₈O₃
Synonyms	2-(2-butoxyethoxy)ethanol; butoxydiethylene glycol, butoxydiglycol; diethylene glycol monobutyl ether; diethylene glycol n-butyl ether; Dowanol DB

Physical Properties
Physical description	Colorless liquid
Boiling point	448°F	Molecular weight	162.2
Freezing point/melting point	-90.6°F	Vapor pressure	0.01 mmHg at 68°F
Flash point	176°F	Vapor density	5.58
Specific gravity	0.954 at 68°F	Ionization potential
Lower explosive limit (LEL)	1.20%	Upper explosive limit (UEL)	8.50%
NFPA health rating	1	NFPA fire rating	2
NFPA reactivity rating	1	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	0471
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]
Sampling time^*	50 min
Sampling volume (TWA)^*	10 L
Sampling flow rate (TWA)^*	0.2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-FID
Method reference	OSHA PV2095 (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	10 ppm (inhalable fraction and vapor) [2012]	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	N	Skin notation	NA
Notes: Not established		Notes: Not established		Notes:		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Diethylene glycol monobutyl ether

NIOSH: Pocket Guide to Chemical Hazards - Diethylene glycol monobutyl ether

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Diethylene glycol monobutyl ether. See annual publication for most recent information.
Berlin, K., Johanson, G. and Lindberg, M.: Hypersensitivity to 2-(2-butoxyethoxy)ethanol. Contact Dermatitis 32(1): 54, 1995.
Bingham, E., Cohrssen, B., and Powell, C.H.: Patty's Toxicology Volumes 1-9 5th ed. John Wiley & Sons. New York, NY, p. V7 203, 2001.
Dawson, T.A.J., Black, R.J., Strang, W.C., Millership, J.S., and Davies, I.A.I.: Delayed and immediate hypersensitivity to carbitols. Contact Dermatitis 21(1): 52-53, 1989.
NIOSH/IPCS: International Chemical Safety Card - Diethylene Glycol Monobutyl Ether. April 19, 2004.
Korinth, G., Goen, T., Lakemeyer, M., Broding, H.C., and Drexler, H.: Skin strain and its influence on systemic exposure to a glycol ether in offset printing workers. Contact Dermatitis 49(5):248-54, November 2003.
Laitinen, J. and Pulkkinen, J.: Biomonitoring of 2-(2-alkoxyethoxy)ethanols by analysing urinary 2-(2-alkoxyethoxy)acetic acids. Toxicol. Lett. 156(1): 117-126, 2005.
OSHA: Sampling and Analytical Methods - Butyl Carbitol. February 1993.
Schliemann-Willers, S., Bauer, A., and Elsner, P.: Occupational contact dermatitis from diethylene glycol monobutyl ether in a podiatrist. Contact Dermatitis 43(4): 225, 2000.

Last Updated Date : 12/28/2020

DIETHYLENE GLYCOL MONOBUTYL ETHER (BUTYL CARBITOL)

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References