A desiccator is used to cool a crucible in order to prevent the absorption of moisture during the cooling process so an accurate result can be obtained
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it must be cooled in the desiccator in order to take the correct measurement on the scale while performing the experiment.
The purpose is to avoid absorption of water vapors, CO2, H2S, dust, etc.
The crucible must be cold before weighing because the heat from the crucible will warms the surrounding air
There is no alliteration used in the crucible.
A crucible is used for heating, melting or calcination of materials.