Hexane


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Related to Hexane: toluene

hexane

[′hek‚sān]
(organic chemistry)
C6H14 Water-insoluble, toxic, flammable, colorless liquid with faint aroma; forms include: n-hexane, a straight-chain compound boiling at 68.7°C and used as a solvent, paint diluent, alcohol denaturant, and polymerization-reaction medium; isohexane, a mixture of hexane isomers boiling at 54-61°C and used as a solvent and freezing-point depressant; and neohexane.

Hexane

 

(n-hexane), the saturated hydrocarbon C6H14; a colorless liquid. Boiling point, 69°C; density, 0.660 g/cm3 (20°C); refractive index (Hexane), 1.37506.

In view of its low octane number (25), hexane is an undesirable constituent of synthetic gasoline. Hexane is present in considerable quantities in straight-run gasoline and in the cracking distillates of petroleum. Under the conditions of petroleum product aromatization and catalytic reforming, hexane is dehydrocyclized to benzene. The hexane isomers 2,2-dimethylbutane and 2,3-dimethylbutane (diisopropyl) are additives improving the quality of motor fuels.

References in periodicals archive ?
For investigation of phytotoxicity and cytotoxic potential, the obtained aqueous, hydroalcoholic and hexane extracts were used to prepare the test solutions at the concentrations of 0.
Antioxidant screening using thin-layer chromatography Figure 1 shows that hexane-ethanol solvent system exhibited more separation when hexane is in larger amount.
Roots of both species exposed to hexane extracts showed the highest rates of chromosomal abnormalities, statistically significant in comparison to methanol extracts (Table 3; Figure 3).
Acetone and hexane (1: 1) were tested together and the lipid percentage was recorded as 10.
australis gives the best results with extracts of hexane.
There are seven combinations types of mobile phase (hexane: ethyl acetate: methanol, chloroform: methanol: hexane, chloroform: methanol: water, ethyl acetate: methanol: hexane, diethyl ether: hexane, diethyl ether: hexane: methanol; and acetone: methanol: water).
For all the assays, hexane and dichloromethane extracts were dissolved in chloroform and all methanol extracts were dissolved in ethanol; 2 mL of the extracts was placed in tests-tubes.
However, pre-extraction of the seeds with hexane (defatting) followed by subsequent extraction of the marc with absolute ethanol, resulted in a considerably active ethanol extract (Table 1, Treatment no.
Extractions were performed by using hexane (Soxhlet hexane), petroleum ether (Soxhlet pet ether), and hexane-acetone 4:1 (Soxhlet hexane-acetone) as solvents (Manirakiza et al.
In this study, the effects of water content on the lipase-catalyzed transesterification (methanolysis) of RO was investigated via the addition of a definite quantity of water to the reaction solution of methanol and RO as substrates, t-butanol, n- hexane or the mixture of these solvents (1:1, v/v) as a solvent, and Lipoprime 50T as the enzyme.
This is generated from a feedstock of the gas 1,3 Butadiene, which is pressurised to form liquid phase and then dissolved in Hexane.