Ligroin


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ligroin

[′lig·rə·wən]
(materials)

Ligroin

 

a fraction of petroleum or gas condensate. Boiling interval, 120°-240°C; density, 785–795 kg/m3, viscosity, 1.2 centistokes (20°C); cloud point, not above — 60°C. Ligroin was originally manufactured as motor fuel for tractors. However, since the conversion of the tractor fleet to diesel engines, it has lost its importance as a motor fuel and is now used mainly in instrument-making (in fluid-filled devices) and sometimes as a solvent.

REFERENCES

Tovarnye nefteprodukty, ikh svoistva i primenenie. Moscow, 1971. Nefteprodukty [part 1]. Moscow, 1970.
References in periodicals archive ?
Before the latter measurements, PLLA (both freeze-dried and bulk) was immersed in ligroin for at least 72 h at room temperature so that ligroin permeated completely into the porous PLLA.
As the freeze-dried particles are very porous, they were first immersed in ligroin and degassed under vacuum by several pump-thaw cycles until the particles sank completely to the bottom of glass tube.
Naphtha as was used in our first case represents a variety of distillates from crude oil or coal tar such as petroleum ether, white spirit, ligroin, petroleum spirits and shellite(1).