n-Pentane
Synonyms & Trade Names
Pentane, normal-PentaneExposure Limits
NIOSH REL
TWA 120 ppm (350 mg/m3) C 610 ppm (1800 mg/m3) [15-minute]OSHA PEL
TWA 1000 ppm (2950 mg/m3) See Appendix GPhysical Description
Colorless liquid with a gasoline-like odor. [Note: A gas above 97°F. May be utilized as a fuel.]Molecular Weight
72.2Boiling Point
97°FFreezing Point
-202°FSolubility
0.04%Vapor Pressure
420 mmHgIonization Potential
10.34 eVSpecific Gravity
0.63Flash Point
-57°FUpper Exposive Limit
7.8%Lower Explosive Limit
1.5%Incompatibilities & Reactivities
Strong oxidizersExposure Routes
inhalation, ingestion, skin and/or eye contactSymptoms
irritation eyes, skin, nose; dermatitis; chemical pneumonitis (aspiration liquid); drowsiness; In Animals: narcosisTarget Organs
Eyes, skin, respiratory system, central nervous systemPersonal Protection/Sanitation
(See protection codes)Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet (flammable)
Change:No recommendation
First Aid
(See procedures)Eye:Irrigate immediately
Skin:Water wash promptly
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations
NIOSH
Up to 1200 ppm:
(APF = 10) Any supplied-air respirator
Up to 1500 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