petroleum ether उदाहरण वाक्य

Petroleum ether is obtained from petroleum refineries as the portion of the distillate which is intermediate between the lighter naphtha and the heavier kerosene.
Adding petroleum ether induces the crystallization of the less soluble diastereomeric salt, the S-enantiomer of Example 20 ( Example 47 ).
It is soluble in about 800 parts water and is miscible with alcohol, benzene, chloroform, ether, petroleum ether, acetone, and oils.
The research discussed how several chemical compounds could be isolated from " P . ellipsoideus " with petroleum ether and ( after defatting ) chloroform.
If I leave the jar without a lid in a ventilated place, will all the petroleum ether or ligroin evaporate fully or will something be left behind?

Another property of colocynth is hair growth stimulation : an experiment on rats demonstrated that hair growth initiation time was significantly decreased after treatment with colocynth petroleum ether extracts.
Diethyl ether should not be confused with petroleum ether ( a crude oil distillate consisting mostly of pentane and other alkanes ) which has also been used for starting engines.
In general, the toxicity is more pronounced with petroleum ethers containing higher concentrations of aromatic compounds . n-Hexane is known to cause axonal damage in peripheral nerves.
Lecithin can easily be extracted chemically using any non-polar solvent such as hexane, ethanol, acetone, petroleum ether, benzene, etc ., or extraction can be done mechanically.
In this method, oils from the algae are extracted through repeated washing, or percolation, with an organic solvent such as hexane or petroleum ether, under reflux in a special glassware.