probably
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∙ 13y agoTo make pure crystals of alum from impure alum, start by dissolving the impure alum in warm water. Filter the solution to remove any impurities, and then cool the filtered solution slowly. As the solution cools, pure alum crystals will start to form. Carefully collect the crystals and allow them to dry to obtain pure crystals of alum.
Pure
By using repeated cycles of fractional crystallization. On each cycle the impurities will concentrate in the brine, leaving purer crystals of salt.
To obtain copper sulfate from an impure sample, you can first dissolve the sample in water to create a solution. Then, filter the solution to remove any insoluble impurities. Finally, crystallize the solution by evaporation to obtain pure copper sulfate crystals.
If a substance in a mixture is preponderant--, if the amount far exceeds the amounts of the other substances in the mixture it is usually called an impure substance. Resource: Separation of the Components of a Mixture Lab -Chemistry
During recrystallization, impurities are removed as the compound is dissolved and then slowly cooled to allow for the formation of pure crystals. As a result, the melting point of the compound should increase after recrystallization because the presence of impurities lowers the melting point of the compound.
One method to obtain pure copper sulfate from an impure sample is by recrystallization. In this process, the impure sample is dissolved in water, and then the solution is heated and slowly cooled to allow pure copper sulfate crystals to form. These crystals are then filtered out and dried to obtain the pure compound.
The suitable prefix for pure is pure it won't make sense of you put another set of words in front of pure it just would not make
Impure common salt can be purified through the process of recrystallization. This involves dissolving the impure salt in water, filtering out any insoluble impurities, and then allowing the solution to cool slowly so that pure salt crystals form. These crystals can then be separated and dried to obtain purified common salt.
Any chemical may be pure or impure.
pure
Adding impurities to a pure salt or applying a method of preparation which not lead to a pure salt.
Pure
To purify copper sulfate, you can dissolve the impure copper sulfate in water, filter out any insoluble impurities, then evaporate the water to obtain pure copper sulfate crystals. You can also perform a recrystallization process by dissolving the impure copper sulfate in hot water, allowing the solution to cool and crystals to form, then filter out the pure crystals.
Pure water does not contain colour but impure water contains Other compounds.
impure
By using repeated cycles of fractional crystallization. On each cycle the impurities will concentrate in the brine, leaving purer crystals of salt.
Generally an impure material is cheaper than a pure material; the word advantage is not so adequate here - can use pure or impure, this depends on the specific applications.