Specifically: That portion of the distillate obtained in the refinement of petroleum which is intermediate between the lighter gasoline and the heavier benzine, and has a specific gravity of about 0.7, -- used as a solvent for varnishes, as a carburetant, illuminant, etc. Naphtha (n.) One ...
The instrument takes advantage of the soxhlet extraction principle and measure the fattiness content by weighing measurement. On the other word, dissolve the fattiness by organic solvent at first, separate the fattiness from the solvent through extraction secondly, then ...