n-Heptane

What is N-Heptane?

Heptane is a saturated hydrocarbon of the alkane family with the formula C7H16. It exists in the form of 9 isomers. One of them, n-heptane, is used as a fuel component in an anti-knock engine test, a fuel with 100% n-heptane is the zero point of the octane number (100 point is 100% octane).

What is N-heptane used for?

Heptane (and its many isomers) is used in laboratories as a completely non-polar solvent. Since it is liquid at room temperature and pressure, it is easy to transport and store.

Heptane is commercially available as a pure substance or mixed with its isomers, for use in paints and coatings, as well as neat for research and development, pharmaceutical manufacturing, and as a minor component in gasoline.

octane scale

n-heptane is the zero point on the octane rating. It was chosen as the zero point of the octane number, because of the possibility of obtaining very pure n-heptane, without being mixed with other heptane isomers or other alkanes.

buy n-Heptane?

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Technical information

Methyl hexane, 1-Methyl hexane
Empirical formula C7H16
Molar mass (M) 100,20 g/mol
Density (D) 0,69 g/cm³
Boiling point (bp) 98,4 °C
Flash point (flp) -4 °C
Melting point (mp) -90,5 °C
ADR 3 II
WGK 2
CAS No. [142-82-5]
EG-Nr. 205-563-8
UN-Nr. 1206

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