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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.
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What limitations are encountered in the application of sublimation as general method of purification?
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):Chemist
Where sublimation is used?
Sublimation is used in the process of converting a solid directly into a gas without passing through the liquid phase. It is commonly used in the production of freeze-dried foods, in the purification of substances such as iodine, and in the creation of air fresheners and deodorizers.
What is the importance of sublimation?
Sublimation can be important during the recovery of compounds that are suspended or dissolved in a fluid or a solid such as dry ice. Sublimation is the transition of a substance from a solid to a gas without passing through the liquid phase.
How does sublimation work in science?
Sublimation is the process of a solid to gas without being turned into a liquid. One must find a phase diagram of the substance. The triple point where all three phases can mannerly exist. So when one finds point below this, and a pressure and temperature where liquid doesn't exist the solid will become gas.
What is the name of a solid turning into a gas?
sublimationAnswersublimation AnswerSublimation Its Sublimation
Why is crystallization a much better purification technique than simply washing the crystals with cold solvent?
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.
What limitations are encountered in the application of sublimation as general method of purification?
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):Chemist
What are the applications of sublimation in chemistry?
Sublimation is the primary process by which dry ice turns into carbon dioxide. This process uses energy from the atmosphere which causes a cooling effect. Many people use dry ice to keep things cold, such as during hunting or fishing trips.
Where sublimation is used?
Sublimation is used in the process of converting a solid directly into a gas without passing through the liquid phase. It is commonly used in the production of freeze-dried foods, in the purification of substances such as iodine, and in the creation of air fresheners and deodorizers.
Why common salt cannot purified by sublimation?
Common salt, or sodium chloride, cannot be purified by sublimation because it has a high melting point (801°C) and does not sublime at normal temperatures and pressures. Sublimation is the process of a substance transitioning directly from a solid to a gas without passing through the liquid phase, which is not applicable to sodium chloride.
What is the importance of sublimation?
Sublimation can be important during the recovery of compounds that are suspended or dissolved in a fluid or a solid such as dry ice. Sublimation is the transition of a substance from a solid to a gas without passing through the liquid phase.
What is the process called when ice turns into water vapor?
I think the answer is sublimation
What is the purpose of the sublimation and recrystallization steps?
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.
How does sublimation work in science?
Sublimation is the process of a solid to gas without being turned into a liquid. One must find a phase diagram of the substance. The triple point where all three phases can mannerly exist. So when one finds point below this, and a pressure and temperature where liquid doesn't exist the solid will become gas.
What is it called when a solid changes directly into a gas?
It is called sublimation.
Is sublimation a physical change?
Sublimation is a physical change.
Is sublimation an element or an atom?
Neither. Sublimation is a process.
