Kongevand

Kongevand eller aqua regia er en blanding af 3 dele koncentreret saltsyre og 1 del koncentreret salpetersyre. Navnet kongevand kommer af at blandingen er i stan

Kongevand
Opløsning af guld i kongevand.

Kongevand eller aqua regia er en blanding af 3 dele koncentreret saltsyre og 1 del koncentreret salpetersyre. Navnet kongevand kommer af at blandingen er i stand til at opløse metallernes konge, guld.

Når man blander de to syrer sker følgende reaktion:

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