Identification Chemical Properties Safety Data Raw materials And Preparation Products Hazard Information Material Safety Data Sheet(MSDS) Spectrum Detail Well-known Reagent Company Product Information Supplier Related Products


Name Pentane
CAS 109-66-0
EINECS(EC#) 203-692-4
Molecular Formula C5H12
MDL Number MFCD00009498
Molecular Weight 72.15
MOL File 109-66-0.mol

Chemical Properties

Appearance Pentane is a colorless liquid. Gas above 36C. Gasoline-like odor.
Melting point  -130 °C
Boiling point  36 °C
density  0.626 g/mL at 25 °C(lit.)
vapor density  2.48 (vs air)
vapor pressure  26.98 psi ( 55 °C)
refractive index  n20/D 1.358
Fp  −57 °F
storage temp.  2-8°C
solubility  ethanol: soluble(lit.)
form  Liquid
pka >14 (Schwarzenbach et al., 1993)
color  Colorless
Specific Gravity 0.63
Odor Like a gasoline.
Relative polarity 0.009
explosive limit 1.4-8%(V)
Odor Threshold 1.4ppm
Water Solubility  insoluble
λmax λ: 200 nm Amax: ≤0.70
λ: 210 nm Amax: ≤0.20
λ: 220 nm Amax: ≤0.07
λ: 230 nm Amax: ≤0.02
λ: 250 nm Amax: ≤0.004
Merck  14,7116
BRN  969132
Henry's Law Constant 1.20 at 25 °C (J?nsson et al., 1982)
Dielectric constant 1.8(20℃)
Exposure limits TLV-TWA 600 ppm (~1800 mg/m3) (ACGIH), 1000 ppm (~3000 mg/m3) (OSHA), 500 ppm (~1500 mg/m3) (MSHA); STEL 750 ppm (~2250 mg/m3) (ACGIH).
LogP 3.390
CAS DataBase Reference 109-66-0(CAS DataBase Reference)
NIST Chemistry Reference Pentane(109-66-0)
EPA Substance Registry System 109-66-0(EPA Substance)

Safety Data

Hazard Codes  F+,Xn,N,F
Risk Statements 
R12:Extremely Flammable.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R65:Harmful: May cause lung damage if swallowed.
R66:Repeated exposure may cause skin dryness or cracking.
R67:Vapors may cause drowsiness and dizziness.
Safety Statements 
S9:Keep container in a well-ventilated place .
S16:Keep away from sources of ignition-No smoking .
S29:Do not empty into drains .
S33:Take precautionary measures against static discharges .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S62:If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label .
RIDADR  UN 1265 3/PG 2
WGK Germany  2
RTECS  RZ9450000
Autoignition Temperature 500 °F
HazardClass  3
PackingGroup  II
HS Code  29011090
Safety Profile
Moderately toxic by inhalation and intravenous routes. Narcotic in high concentration. The liquid can cause blisters on contact. Flammable liquid. Highly dangerous fire hazard when exposed to heat, flame, or oxidizers. Severe explosion hazard when exposed to heat or flame. Shock can shatter metal containers and release contents. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes
Hazardous Substances Data 109-66-0(Hazardous Substances Data)
LC (in air) in mice: 377 mg/l (Fühner)
IDLA 1,500 ppm [10% LEL]

Hazard Information

Material Safety Data Sheet(MSDS)

Well-known Reagent Company Product Information