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| boiling chip ： ウィキペディア英語版 |
boiling chip
A boiling chip, boiling stone, or anti-bumping granule is a tiny, unevenly shaped piece of substance added to liquids to make them boil more calmly. Boiling chips are frequently employed in distillation and heating. When a liquid becomes superheated, a particle of dust or a stirring rod can cause flash boiling. This very rapid boiling can be extremely violent and cause reagents to splatter, possibly causing severe burns, ruining an experiment, and damaging equipment. Boiling chips work by providing nucleation sites so the liquid boils smoothly without becoming superheated or bumping.
== Use ==
Boiling chips should not be added to liquid that is already near its boiling point, as this could also induce flash boiling.
The structure of boiling chips traps liquid while in use, meaning that they cannot be re-used in laboratory setups.〔(【引用サイトリンク】CU Boulder "> Boiling Chips )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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