Evaporation in a chemical laboratory

Evaporation in a chemical laboratory
1. During the heating process, stir continuously with a glass rod (action: speed up evaporation to prevent droplets from splashing due to excessive local temperature)
2. Stop heating when the liquid is nearly evaporated (or a large amount of solids appear), and use residual heat to evaporate the remaining water to prevent the solids from splashing out due to heat.

3. The hot evaporating dish should be clamped with a pliers. If the hot evaporating dish is to be placed on the test bench immediately, the asbestos net should be placed on it.