Definition of Fractional distillation. Meaning of Fractional distillation. Synonyms of Fractional distillation
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Definition of Fractional distillation
Fractional distillationDistillation Dis`til*la"tion, n. [F. distillation, L.
1. The act of falling in drops, or the act of pouring out in
2. That which falls in drops. [R.] --Johnson
3. (Chem.) The separation of the volatile parts of a
substance from the more fixed; specifically, the operation
of driving off gas or vapor from volatile liquids or
solids, by heat in a retort or still, and the condensation
of the products as far as possible by a cool receiver,
alembic, or condenser; rectification; vaporization;
condensation; as, the distillation of illuminating gas and
coal, of alcohol from sour mash, or of boric acid in
Note: The evaporation of water, its condensation into clouds,
and its precipitation as rain, dew, frost, snow, or
hail, is an illustration of natural distillation.
4. The substance extracted by distilling. --Shak.
Destructive distillation (Chem.), the distillation,
especially of complex solid substances, so that the
ultimate constituents are separated or evolved in new
compounds, -- usually requiring a high degree of heat; as,
the destructive distillation of soft coal or of wood.
Dry distillation, the distillation of substances by
themselves, or without the addition of water or of other
volatile solvent; as, the dry distillation of citric acid.
Fractional distillation. (Chem.) See under Fractional. Fractional distillationFractional Frac"tion*al, a.
1. Of or pertaining to fractions or a fraction; constituting
a fraction; as, fractional numbers.
2. Relatively small; inconsiderable; insignificant; as, a
fractional part of the population.
Fractional crystallization (Chem.), a process of gradual
and approximate purification and separation, by means of
repeated solution and crystallization therefrom.
Fractional currency, small coin, or paper notes, in
circulation, of less value than the monetary unit.
Fractional distillation (Chem.), a process of distillation
so conducted that a mixture of liquids, differing
considerably from each other in their boiling points, can
be separated into its constituents.
Meaning of Fractional distillation from wikipedia
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