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I'm assuming you mean a crucible and lid (the little white things you place in ovens or on the top of Bunsen burners)?
If you do, then a crucible and a lid is a way to get an anhydrized solid (a solid which may have H2O mixed in amongst the pure solid) and turn it into pure product by evaporating away all of the water in the solid.
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EzraA crucible with a cover is commonly used in laboratories for heating, melting, or mixing substances at high temperatures. The cover helps contain the heat and prevent contaminants from entering the crucible during the heating process. This setup is often used in processes such as chemical reactions, metal alloy testing, and sample preparation in analytical chemistry.
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What glasswear do you use to heat a solid?
a crucible and cover
What are the laburatory apparatus example their uses?
What_are_each_of_the_different_laboratory_apparatuses_and_how_are_they_used
What is the primary function are used of the crubicle and cover?
The primary function of a crucible is to hold and heat substances at high temperatures, typically used in chemistry labs for melting, mixing, or heating materials. A cover is used to either contain the material within the crucible or to protect it from external contaminants while heating.
What is the function of crucible tong?
To hold your crucible remotely, This is useful when you want to burn the contents of your crucible without getting burned.
Why gold is melting in graphite crucible?
It is not obligatory to melt gold in a graphite crucible; generally is important to avoid contamination of gold with impurities from the crucible.
