METHYLCYCLOHEXANOL†

Chemical Identification
Chemical Identification
CAS # 25639-42-3
Formula
 

C₇H₁₄O

Synonyms
 

hexahydrocresol; hexahydromethylphenol

Physical Properties
Physical Properties
Physical description Straw-colored liquid with a weak odor like coconut oil.
Boiling point 311-356°F Molecular weight 114.2
Freezing point/melting point -58°F Vapor pressure 2 mmHg at 86°F
Flash point 149-158°F Vapor density
Specific gravity 0.92 Ionization potential 9.80 eV
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating NFPA fire rating
NFPA reactivity rating 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.) 1760
Sampling group
Sampler/Sampling media CSC tube (100/50 mg) [SKC 226-01]
Sampling time*
 

 

Sampling volume (TWA)*
 
 

1-15 L

Sampling flow rate (TWA)*
 
 

0.01-0.2 L/min

Sampling volume (STEL/Peak/C)*
 
 

 

Sampling flow rate (STEL/Peak/C)*
 
 

 

Analytical method instruments GC-FID
Method reference NIOSH 1404 (fully 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 Detector tube Infrared spectrophotometer
Model/Type Matheson-Kitagawa 8014-199U Miran 1A & 1B
Sampling information
(see manufacturer instructions)
5-200 ppm range 0.5 ppm@9.5 µm
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
 
 

100 ppm (470 mg/m³)

REL-TWA
 
 

50 ppm (235 mg/m³)

TLV-TWA
 
 

50 ppm [2005]

PEL-TWA
 
 

50 ppm (235 mg/m³)

PEL-STEL
 
 

 

REL-STEL
 
 

 

TLV-STEL
 
 

 

PEL-STEL
 
 

 

PEL-C
 
 

 

REL-C
 
 

 

TLV-C
 
 

 

PEL-C
 
 

 

Skin notation
 
 

N

Skin notation
 
 

N

Skin notation
 
 

N

Skin notation
 
 

N

Notes:
 
 

See 29 CFR 1910.1000 Table Z-1.

Notes:
 
 

 

Notes:
 
 

 

Notes:
 
 

 

Health factors:  See NIH-NLM PubChem. IDLH
 
 

500 ppm

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 - Methylcyclohexanol

NIOSH: Pocket Guide to Chemical Hazards - Methylcyclohexanol

Literature References

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

Last Updated Date : 01/05/2021