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Methylcyclohexanol

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Synonyms & Trade Names
Hexahydrocresol, Hexahydromethylphenol
CAS No.
25639-42-3
RTECS No.
GW0175000
DOT ID & Guide
2617 129
Formula
CH₃C₆H₁₀OH
Conversion
1 ppm = 4.67 mg/m3
IDLH
500 ppm
See: 25639423
Exposure Limits
NIOSH REL
TWA 50 ppm (235 mg/m3)
OSHA PEL
TWA 100 ppm (470 mg/m3) See Appendix G
Measurement Methods
NIOSH 1404
See: NMAM or OSHA Methods
Physical Description
Straw-colored liquid with a weak odor like coconut oil.
Molecular Weight
114.2
Boiling Point
311-356°F
Freezing Point
-58°F
Solubility
4%
Vapor Pressure
(86°F): 2 mmHg
Ionization Potential
9.80 eV
Specific Gravity
0.92
Flash Point
149-158°F
Upper Explosive Limit
?
Lower Explosive Limit
?
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
Incompatibilities & Reactivities
Strong oxidizers
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, upper respiratory system; headache; In Animals: narcosis; liver, kidney damage
Target Organs
Eyes, skin, respiratory system, central nervous system, kidneys, liver
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:No recommendation
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap wash promptly
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

NIOSH

Up to 500 ppm:
(APF = 10) Any supplied-air respirator*
(APF = 50) Any self-contained breathing apparatus with a full facepiece

Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus

Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0292
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health