It is not as selective as crystalization, it typically requires a vacuum and usually requires that the compound you are trying to separate is volatile, while everything else in the mixture is not volatile.
Source(s):ChemistIt is not as selective as crystalization, it typically requires a vacuum and usually requires that the compound you are trying to separate is volatile, while everything else in the mixture is not volatile.
One of the biggest advantages of using a dye sublimation printer is that the image that is produced has much more true to life colours, for example like a photograph. This is due to the continuous-tone technology which allows each dot to be a different colour.
not all compounds turn to gas in which sublimation does.
Eretrets best answer for project
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temperature and pressure
purification by sublimation is applicable when the solid has a relatively high vapor pressure at temperature below its melting point. it is also applicable when the purity has a lower vapor pressure than the purified, and when a small quantity of the solid is used. this process can also be used when compounds display characteristic property of condensing the solid state without passing through the liquid state.
it is used because some organic compounds do not sublime at atmospheric pressure so by using the vacuum it substantially reduces the pressure so that they can be purified by sublimation. it also makes decomposition and melting less likely to occur during the sublimation.
Various methods used for purification and separation of organic compounds are: i) Crystallisation ii) Fractional Crystallisation iii) Sublimation iv) Distillation v) Extraction with solvents vi) Chromatography.
sublimationAnswersublimation AnswerSublimation Its Sublimation
A solid that turns directly into a gas is dry ice. Sublimation
Recrystallization and Sublimation are two commonly encountered methods of Purification. Several of these are done in the laboratory to obtain a pure sample of a particular organic compound. Recrystallization literally means to crystallize again. Sublimation involves heating the compound at low pressure from one apparatus and and condensing it in another. This is quite the same as distillation but of solid state.
because sublimation is a method of obtaining a product of high purity; it is best adapted to use with small amounts of material; there is little loss of material in sublimation; and the process of sublimation requires less time and transferring.
purification by sublimation is applicable when the solid has a relatively high vapor pressure at temperature below its melting point. it is also applicable when the purity has a lower vapor pressure than the purified, and when a small quantity of the solid is used. this process can also be used when compounds display characteristic property of condensing the solid state without passing through the liquid state.
it is used because some organic compounds do not sublime at atmospheric pressure so by using the vacuum it substantially reduces the pressure so that they can be purified by sublimation. it also makes decomposition and melting less likely to occur during the sublimation.
Various methods used for purification and separation of organic compounds are: i) Crystallisation ii) Fractional Crystallisation iii) Sublimation iv) Distillation v) Extraction with solvents vi) Chromatography.
I think the answer is sublimation
sublimationAnswersublimation AnswerSublimation Its Sublimation
sublimation. for example when dry ice changes directly to a gas.
A solid that turns directly into a gas is dry ice. Sublimation
The opposite of sublimation, where a solid changes to a gas is called deposition, NOT SUBLIMATION! Hope that clears it up :).
It is called sublimation.
When a solid turns directly into a gas without becoming a liquid it is called sublimation. The reverse of this process is called deposition.