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Instrument washing in chemica​l laboratory​ Share



1. The waste residue and waste liquid are poured into the waste liquid tank, and the useful substances are poured into the designated container.

2, the standard of glass instrument washing: the water attached to the glass instrument, neither aggregated into water droplets, nor flowed down
3. Grease is attached to the glass instrument: first wash it with hot soda ash (Na2CO3) solution or washing powder, then rinse with water.
4. The glass instrument is provided with alkali, alkaline oxide and carbonate which are hardly soluble in water: first dissolve with dilute hydrochloric acid, then rinse with water.

5, after the instrument is cleaned, can not be placed indiscriminately, after the test tube is cleaned, it should be inserted into the test tube rack to dry.


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