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32287-M

Heptane

Name: Heptane
Brand: SIAL

puriss. p.a., reag. Ph. Eur., ≥99% n-heptane basis (GC)

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About This Item

Linear Formula:

CH₃(CH₂)₅CH₃

CAS Number:

142-82-5

Molecular Weight:

100.20

UNSPSC Code:

12352001

NACRES:

NA.21

PubChem Substance ID:

329754124

EC Number:

205-563-8

Beilstein/REAXYS Number:

1730763

MDL number:

MFCD00009544

Assay:

≥99% n-heptane basis (GC)

Technique(s):

GC/GC: suitable

Bp:

98 °C (lit.)

Vapor pressure:

40 mmHg ( 20 °C), 83 mmHg ( 37.7 °C)

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Properties

agency

USP/NF, reag. Ph. Eur.

vapor density

3.5 (vs air)

vapor pressure

40 mmHg ( 20 °C), 83 mmHg ( 37.7 °C)

grade

puriss. p.a.

assay

≥99% n-heptane basis (GC)

form

liquid

autoignition temp.

433 °F

expl. lim.

7 %

greener alternative product characteristics

Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.

technique(s)

GC/GC: suitable

impurities

≤0.0005% free acid (as CH₃COOH), ≤0.001% non-volatile matter, ≤0.005% S-compounds (as S), ≤0.01% water (Karl Fischer)

refractive index

n20/D 1.387 (lit.), n20/D 1.3870-1.3880

bp

98 °C (lit.)

mp

−91 °C (lit.)

density

0.684 g/mL at 25 °C (lit.)

cation traces

Al: ≤0.50 ppm, B: ≤0.02 ppm, Ba: ≤0.10 ppm, Ca: ≤0.50 ppm, Cd: ≤0.05 ppm, Co: ≤0.02 ppm, Cr: ≤0.02 ppm, Cu: ≤0.02 ppm, Fe: ≤0.10 ppm, Mg: ≤0.10 ppm, Mn: ≤0.02 ppm, Ni: ≤0.02 ppm, Pb: ≤0.1 ppm, Sn: ≤0.10 ppm, Zn: ≤0.10 ppm

suitability

passes test for reaction against H₂SO₄

greener alternative category

Aligned

SMILES string

CCCCCCC

InChI

1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3

InChI key

IMNFDUFMRHMDMM-UHFFFAOYSA-N

Description

General description

Heptane (n-Heptane) is a linear hydrocarbon. Its cetane number has been reported to be 56. Mechanism and kinetic studies of its oxidation in flow reactors, shock tubes and rapid compression machines have been proposed.

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. Heptane is an environmentally preferable solvent and greener alternative to hexane and thus has been enhanced for "Safer Solvents and Auxiliaries". Click here for more information. Heptane is a linear hydrocarbon that is considered as a greener alternative to the more toxic hexane.

Application

Heptane may be used in the following studies:

To compose the water/sodium bis(2-ethylhexyl) sulfosuccinate (AOT)/n-heptane microemulsions, employed for the synthesis of ZnS nanoparticles.
As a solvent for various solid n-paraffins.
Sterol quantification method (SQM) for the determination of total intracellular ergosterol in Aspergillus fumigatus extracts.

Greener alternatives to Hexane.