Description

Normal Heptane (and its many isomers) is widely used in laboratories as a non-polar solvent. As a liquid, it is ideal for transport and storage. In the grease spot test, it is used to dissolve an oil spot to show the previous presence of organic compounds on a stained paper. Often times heptane e is used for certain types of extractions replacing the more toxic solvent hexane. n-Heptane can be used to extract crude oil from the herb instead of more polar alcohols. Heptane is also commonly employed as a solvent in liquid column chromatography. When separating (fractionating) cannabis, the terpenes, other cannabinoids, and finally the plant material comes apart into layers that can be individually collected.

Junyuan Petroleum Group offers Pharm Grade™ 99%+ n-Heptane in 200-L drums and 16-MT ISO Tank Containers

Properties
Pharm Grade™ n-Heptane
Boiling point: 208.4 °F (98 °C)
Flash point: 24.8 °F (-4 °C) Closed Cup
Molecular formula: C7-H16
Molecular weight: 100.2 g/mol
Vapor pressure: 110.7 hPa
CAS Number: 142-82-5
Specific Gravity @ 15.56°C: 0.680 – 0.695
Titrable Acid: 0.0003 meq/g max.
Color (APHA): 10 max.
Residue after Evaporation: 10 ppm max.