A substance used to force a distillate in a distillation, as it has a boiling point more than that of the substance to be extracted and less than that of the impurities. It is rarely used but mostly with fractional distillation when column packing is used. As it vaporises it heats the column packing and causes the trapped fluid to rise over.

The concentration of volatile pollutants, generated in the temperate zones, in the polar regions

The heating of solid materials to produce gaseous products (which may condense into liquids or solids).

plural of distillation chaser

plural of fractional distillation

plural of steam distillation

plural of vacuum distillation

The process of enriching a solution (not truly distilling it) by partially freezing it and then removing frozen material that is poorer in the dissolved material than is the liquid portion left behind.

(chemistry, physics) a technique of extractive distillation in which a salt or a non-volatile liquid is added to the mixture being distilled in order to remove azeotropes and aid separation

plural of distilled water