Home Categories Chemical Reagents n-Pentane
A6699012

n-Pentane , AR,99% , 109-66-0

Synonym(s):
acs solvents;high purity solvents;Pentane

CAS NO.:109-66-0

Empirical Formula: C5H12

Molecular Weight: 72.15

MDL number: MFCD00009498

EINECS: 203-692-4

Update time: 2022-07-08

PRODUCT Properties

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
Flash point: −57 °F
storage temp.  Store at +5°C to +30°C.
solubility  ethanol: soluble(lit.)
form  Liquid
pka >14 (Schwarzenbach et al., 1993)
color  Colorless
Specific Gravity 0.63
Relative polarity 0.009
Odor Like a gasoline.
Odor Threshold 1.4ppm
explosive limit 1.4-8%(V)
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)
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).
Dielectric constant 1.8(20℃)
InChIKey OFBQJSOFQDEBGM-UHFFFAOYSA-N
LogP 3.390

Description and Uses

Fuel; solvent; chemical synthesis

Safety

Symbol(GHS) 
GHS02,GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H225-H304-H336-H411
Precautionary statements  P210-P273-P301+P310+P331
Hazard Codes  F+,Xn,N,F
Risk Statements  12-51/53-65-66-67
Safety Statements  9-16-29-33-61-62
RIDADR  UN 1265 3/PG 2
OEB A
OEL TWA: 120 ppm (350 mg/m3), Ceiling: 610 ppm (1800 mg/m3) [15-minute]
WGK Germany  2
RTECS  RZ9450000
3-10
Autoignition Temperature 500 °F
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29011090
Toxicity LC (in air) in mice: 377 mg/l (Fühner)
IDLA 1,500 ppm [10% LEL]

RELATED PRODUCTS