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Gallium

QuestionAnswer
De quelle couleur est le métal gallium ? Gris
Est-il naturel ? Non on le trouve dans les minerais
Quelle est sa température de fusion, relativement basse, qui lui permet d'être parfois liquide à température ambiante ? 29,8°C
A quoi sert le gallium ? Il remplace le mercure dans des thermomètres Il est principalement utilisé en alliage dans les semi conducteurs ( DEL )
Quel pictogramme s'y rapporte ? Corrosif
Y'a t il du gallium dans les téléphones portables ? Oui
Quel pays assure 95% du raffinage du gallium ? La Chine
Created by: Nat380
 

 



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