| en | en | |
| Fractional crystallization | Fractional \Frac"tion*al\, a. 1. Of or pertaining to fractions or a fraction; constituting a fraction; as, fractional numbers. [1913 Webster] 2. Relatively small; inconsiderable; insignificant; as, a fractional part of the population. [1913 Webster] {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. [1913 Webster] |
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