ETHYLENE GLYCOL

Chemical Identification
Chemical Identification
CAS # 107-21-1
Formula

C₂H₆O₂

Synonyms

1,2-dihydroxyethane; 1,2-ethanediol; glycol; glycol alcohol; monoethylene glycol

Physical Properties
Physical Properties
Physical description Clear, colorless, syrupy, odorless liquid.
Boiling point 388°F Molecular weight 62.1
Freezing point/melting point 9°F Vapor pressure 0.06 mmHg
Flash point 232°F Vapor density 2.14
Specific gravity 1.11 Ionization potential
Lower explosive limit (LEL) 3.2% Upper explosive limit (UEL) 15.3%
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.) 1911
Sampling group
Sampler/Sampling media OSHA versatile sampler (OVS-7) - 13 mm XAD-7 tube (200/100 mg) with GFF enclosed [SKC 226-57]
Sampling time*
Sampling volume (TWA)*

5-60 L

Sampling flow rate (TWA)*

0.5-2 L/min

Sampling volume (STEL/Peak/C)*
 

 

Sampling flow rate (STEL/Peak/C)*
 

 

Analytical method instruments GC-FID
Method reference NIOSH 5523 (partially validated)
Notes
 

Keep samples refrigerated when not in transit. Ship samples overnight with cold-packs as soon as possible.

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 Detector tube Detector tube Detector tube
Model/Type Dräger - Ethylene Glycol 10; 8101351 Gastec 165L Matheson-Kitagawa 8014-232SB
Sampling information
(see manufacturer instructions)
10 strokes; approx 5-180 mg/m³ range; uncertainty aprpox 41% 2 strokes; 2-100 mg/m³ range; uncertainty 25% for 10-50 mg/m³, 16% for 50-100 mg/m³ 3 strokes; approx 1-40 mg/m³ range
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
 

25 ppm (vapor fraction) [2016]

PEL-TWA
 

 

PEL-STEL
 

 

REL-STEL
 

 

TLV-STEL
 

50 ppm (vapor fraction), 10 mg/m³ (inhalable particulate matter, aerosol only) [2016]

PEL-STEL
 

 

PEL-C
 

 

REL-C
 

 

TLV-C
 

 

PEL-C
 

40 ppm (100 mg/m³)

Skin notation
 

NA

Skin notation
 

N

Skin notation
 

N

Skin notation
 

N

Notes:
 

Not established

Notes:
 

See Appendix D - Substances with No Established RELs.

Notes:
 

 

Notes:
 

vapor

Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: TLV-A4 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 - Ethylene glycol

NIOSH: Pocket Guide to Chemical Hazards - Ethylene Glycol

Literature References

 
  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Ethylene glycol. See annual publication for most recent information.
  • EPA Air Toxics Website: Ethylene Glycol. U.S. Environmental Protection Agency Technology Transfer Network.
  • Pohanish, R.P. (editor): Ethylene Glycol. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1088-1090.

Last Updated Date : 12/28/2020