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Eau de chaux

QuestionAnswer
Pourquoi n'impose t on pas de pictogramme " corrosif " ou " irritant " à l'eau de chaux de laboratoire ? Car elle est très diluée ; mais elle reste basique ( pH autour de 12 ), donc il faut éviter le contact avec les yeux ou l'ingestion
Que se forme t il au contact de dioxyde de carbone ? Un précipité blanc de carbonate de calcium CaCO3
Qu'est ce que l'eau de chaux ? Une solution saturée d'hydroxyde de calcium ( Ca(OH)2)
Created by: Nat380
 

 



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