xylene

/zahy-leen/US // ˈzaɪ lin //UK // (ˈzaɪliːn) //

二甲苯

Definitions

n.名词 noun

1
Chemistry.
- : any of three oily, colorless, water-insoluble, flammable, toxic, isomeric liquids, C8H10, of the benzene series, obtained mostly from coal tar: used chiefly in the manufacture of dyes.

Apart from the softening point the pitch is all the more valued the more constituents it contains which are soluble in xylene.
The musk deer may now be saved from extinction since we can make tri-nitro-butyl-xylene from coal tar.
So is xylene, a chemical which will readily clean grease and fatty matter from the fingers.
The fingers should be wiped very lightly with either soap and water or xylene, always following the ridge contours.
If the substance dries too fast to permit proper photographing, the skin should be photographed while immersed in the xylene.