Question

What precautions should be taken while handling the heating devices​

Answer 1

Regularly monitor oil temperature. Electrical circuit breaker should be provided to cut off the current supplied to avoid overheating. Bath should have oil stirring arrangement for uniformity of temperature and to prevent formation of local hotspots on the heating element. Handle the bath when hot with heat proof .

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Answer 2

Explanation:

Heating is an essential requirement in laboratories for carrying out common operations such as:

Purification of solvents by distillation

Extractions using rotary evaporators

Studies on kinetics of chemical reactions

Determination of physical parameters such as boiling point, melting point, flashpoint, etc

Sample digestions

Drying of cleaned glassware for subsequent use

Drying of precipitates or determinations of loss on drying