Methyl isobutyl carbinol
Synonyms & Trade Names
Isobutylmethylcarbinol, Methyl amyl alcohol, 4-Methyl-2-pentanol, MIBCExposure Limits
NIOSH REL
TWA 25 ppm (100 mg/m3) ST 40 ppm (165 mg/m3) [skin]OSHA PEL
TWA 25 ppm (100 mg/m3) [skin] See Appendix GPhysical Description
Colorless liquid with a mild odor.Molecular Weight
102.2Boiling Point
271°FFreezing Point
-130°FSolubility
2%Vapor Pressure
3 mmHgIonization Potential
?Specific Gravity
0.81Flash Point
106°FUpper Exposive Limit
5.5%Lower Explosive Limit
1.0%Incompatibilities & Reactivities
Strong oxidizersExposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contactSymptoms
irritation eyes, skin; headache, drowsiness; dermatitis; In Animals: narcosisTarget Organs
Eyes, skin, central nervous systemPersonal 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:Water flush promptly
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations
NIOSH/OSHA
Up to 250 ppm:
(APF = 10) Any supplied-air respirator*
Up to 400 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode*
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator 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
- Page last reviewed:April 11, 2016
- Page last updated:April 11, 2016
- Content source:
- National Institute for Occupational Safety and Health (NIOSH) Education and Information Division