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Cyclopentane

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Synonyms & Trade Names
Pentamethylene
CAS No.
287-92-3
RTECS No.
GY2390000
DOT ID & Guide
1146 128
Formula
C₅H₁₀
Conversion
1 ppm = 2.87 mg/m3
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
TWA 600 ppm (1720 mg/m3)
OSHA PEL
none See Appendix G
Measurement Methods
None available
See: NMAM or OSHA Methods
Physical Description
Colorless liquid with a mild, sweet odor.
Molecular Weight
70.2
Boiling Point
121°F
Freezing Point
-137°F
Solubility
Insoluble
Vapor Pressure
(88°F): 400 mmHg
Ionization Potential
10.52 eV
Specific Gravity
0.75
Flash Point
-35°F
Upper Explosive Limit
8.7%
Lower Explosive Limit
1.1%
Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
Incompatibilities & Reactivities
Strong oxidizers (e.g., chlorine, bromine, fluorine)
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, nose, throat; dizziness, euphoria, incoordination, nausea, vomiting, stupor; dry, cracking skin
Target Organs
Eyes, skin, respiratory system, central nervous system
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:Daily
Remove:When wet (flammable)
Change:No recommendation
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap wash
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0353
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health