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Organic Chemistry – Some Basic Principles And Techniques
The distillation technique most suited for separating glycerol from spent-lye in the soap industry is:
fractional distillation
steam distillation
distillation under reduced pressure
simple distillation
C.
distillation under reduced pressure
Glycerol with high boiling point (290oC) can be separated from spent lye by distillation under reduced pressure. This process is used to purify liquids having very high boiling points. By this process, the liquid is made to boil at a lower temperature than its boiling point by lowering the pressure on its surface.
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What system of nomenclature is accepted universally?
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