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154954

Sigma-Aldrich

Pentane

spectrophotometric grade, ≥99%

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About This Item

Linear Formula:
CH3(CH2)3CH3
CAS Number:
Molecular Weight:
72.15
Beilstein:
969132
EC Number:
MDL number:
UNSPSC Code:
12352001
PubChem Substance ID:
NACRES:
NA.06

grade

spectrophotometric grade

Quality Level

vapor density

2.48 (vs air)

vapor pressure

26.98 psi ( 55 °C)
8.4 psi ( 20 °C)

Assay

≥99%

form

liquid

autoignition temp.

500 °F

expl. lim.

~8.3 %

technique(s)

UV/Vis spectroscopy: suitable

impurities

<0.010% water

evapn. residue

<0.0003%

refractive index

n20/D 1.358 (lit.)

bp

35-36 °C (lit.)

mp

−130 °C (lit.)

density

0.626 g/mL at 25 °C (lit.)

λ

H2O reference

UV absorption

λ: 195 nm Amax: 1.00
λ: 200 nm Amax: 0.60
λ: 210 nm Amax: 0.30
λ: 220 nm Amax: 0.06
λ: 245-400 nm Amax: 0.01

SMILES string

CCCCC

InChI

1S/C5H12/c1-3-5-4-2/h3-5H2,1-2H3

InChI key

OFBQJSOFQDEBGM-UHFFFAOYSA-N

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General description

Pentane (n-pentane) undergoes hydroisomerization in the presence of nanocrystalline beta (BEA) zeolite. It has been reported as one of the products formed from the peroxidation of unsaturated fatty acid. It isomerizes to iso-pentane in the presence of ZSM-5 (Zeolite Socony Mobil-5) zeolite catalysts under hydrogen and nitrogen atmosphere.
Pentane is a low boiling solvent, which finds applications in industries as a petroleum solvent and as a substitute for diethyl ether.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 2 - STOT SE 3

Target Organs

Central nervous system

Supplementary Hazards

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

-40.0 °F

Flash Point(C)

-40 °C


Certificates of Analysis (COA)

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Smallwood.McN I et al.
Solvent Recovery Handbook (2002)
Hydroisomerization of n-pentane over hybrid catalysts containing a supported hydrogenation catalyst.
Fujimoto K, et al.
Applied Catalysis A: General, 91(2), 81-86 (1992)
Anna Svensson et al.
Carbohydrate polymers, 92(1), 775-783 (2012-12-12)
Dry ultra-porous cellulose fibres were obtained using a liquid exchange procedure in which water was replaced in the following order: water, methanol, acetone, and finally pentane; thereafter, the fibres were dried with Ar(g). The dry samples (of TEMPO-oxidized dissolving pulp)
Assessment of lipid peroxidation in newborn infants and rabbits by measurements of expired ethane and pentane: influence of parenteral lipid infusion.
Wispe JR, et al.
Pediatric Research, 19(4), 374-379 (1985)
Fuming Chen et al.
Langmuir : the ACS journal of surfaces and colloids, 27(15), 9174-9181 (2011-07-01)
Graphene oxide (GO) can be viewed as an amphiphilic soft material, which form thin films at organic solvent-water interfaces. However, organic solvent evaporation provides little driving force, which results in slow GO transfer in aqueous phase, thus dawdling GO film

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