HEXYLENE GLYCOL

Chemical Identification
Chemical Identification
CAS # 107-41-5
Formula

C₆H₁₄O₂

Synonyms

2,4-dihydroxy-2-methylpentane; 2-methyl-2,4-pentanediol; 4-methyl-2,4-pentanediol; 2-methylpentane-2,4-diol

Physical Properties
Physical Properties
Physical description Colorless liquid with a mild, sweetish odor.
Boiling point 388°F Molecular weight 118.2
Freezing point/melting point -58°F (sets to glass) Vapor pressure 0.05 mmHg
Flash point 209°F Vapor density
Specific gravity 0.923 Ionization potential
Lower explosive limit (LEL) 1.3% (calc) Upper explosive limit (UEL) 8.1% (calc)
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.) 1389
Sampling group
Sampler/Sampling media CSC tube (100/50 mg) [SKC 226-01]
Sampling time*

15 min minimum

Sampling volume (TWA)*

3 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 PV2101 (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
 

25 ppm (vapor fraction) [2016]

PEL-TWA
 

 

PEL-STEL
 

 

REL-STEL
 

 

TLV-STEL
 

50 ppm (vapor fraction), 10 mg/mg³ (inhalable particulate matter, aerosol only) [2016]

PEL-STEL
 

 

PEL-C
 

 

REL-C
 

25 ppm (125 mg/m³)

TLV-C
 

 

PEL-C
 

25 ppm (125 mg/m³)

Skin notation
 

NA

Skin notation
 

N

Skin notation
 

N

Skin notation
 

N

Notes:
 

Not established

Notes:
 

 

Notes:
 

 

Notes:
 

 

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
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Hexylene glycol

NIOSH: Pocket Guide to Chemical Hazards - Hexylene glycol

Literature References

 
  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Hexylene glycol. See annual publication for most recent information.

Last Updated Date : 12/31/2020