Ligroin
Ligroin is the petroleum fraction consisting mostly of C7 and C8hydrocarbons and boiling in the range 90‒140 ℃; commonly used as a laboratory solvent.
Products under the name ligroin can have boiling ranges as low as 60‒80 ℃ and may be practically indistinguishable from a petroleum ether with the same boiling range.
Ligroin is assigned the CAS Registry Number 8032-32-4, which is also applied to many other products, particularly the lower boiling ones, called , petroleum ether, and petroleum benzine.
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