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Key Documents

6.18549

Sigma-Aldrich

n-Heptane

for chromatography

Synonym(s):

Heptane

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About This Item

Linear Formula:
CH3(CH2)5CH3
CAS Number:
Molecular Weight:
100.20
Beilstein:
1730763
MDL number:
UNSPSC Code:
12352001
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grade

for chromatography

Quality Level

vapor density

3.5 (vs air)

vapor pressure

40 mmHg ( 20 °C)
83 mmHg ( 37.7 °C)

autoignition temp.

433 °F

expl. lim.

7 %

refractive index

n20/D 1.387 (lit.)

bp

98 °C (lit.)

mp

−91 °C (lit.)

density

0.684 g/mL at 25 °C (lit.)

SMILES string

CCCCCCC

InChI

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

InChI key

IMNFDUFMRHMDMM-UHFFFAOYSA-N

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General description

n-Heptane is a hydrocarbon liquid commonly usedas a nonpolar mobile phase or solvent in gas chromatography (GC) and reversed-phase liquid chromatography (RPLC).[1][2]

Application


  • Identification of Different Classes of VOCs Based on Optical Emission Spectra Using a Dielectric Barrier Helium Plasma Coupled with a Mini Spectrometer.: This paper describes a novel analytical technique for identifying volatile organic compounds, including n-heptane, demonstrating the versatility of plasma spectroscopy in chemical analysis (Mao et al., 2024).

  • Rapid online analysis of n-alkanes in gaseous streams via APCI mass spectrometry.: This research discusses a rapid analytical method for detecting n-alkanes like n-heptane in gaseous streams, showcasing advancements in mass spectrometry for real-time environmental monitoring (Wentrup et al., 2024).


Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Target Organs

Central nervous system

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

24.8 °F - closed cup

Flash Point(C)

-4 °C - closed cup


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Investigation of the effects of solvent-mismatch and immiscibility in normal-phase ? aqueous reversed-phase liquid chromatography
Groeneveld G, et al.
Journal of Chromatography A, 462818, 1665-1665 (2022)
Gas chromatograph applications in petroleum hydrocarbon fluids
Zeng H, et al.
Advanced gas chromatography-Progress in agricultural, biomedical and industrial applications, 363-388 (2012)

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