File:Plaatina reageerimine kuningveega 01.JPG

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Eesti: Plaatinamünt pistetuna kuningvette

Käesolev foto on esimene seeriast kuidas plaatina reageerib kuningveega

Plaatina reageerimisel kuningveega moodustub heksakloroplaatina(IV)hape H2PtCl6 . Seda ühendit kasutatakse teiste plaatinaühendite valmistamiseks, nagu ka antud juhul. Antud juhul viidi reaktsioon läbi 150-rublase 1978. a. Nõukogude Liidus Leningradi rahapajas vermitud Moskvas 1980. aastal toimunud XXII suveolümpiamängudele pühendatud meenemündiga. Sellised mündid on valmistatud 999-se prooviga plaatinast kaaluga 15,55 grammi (1/2 untsi puhast plaatina).

1. Plaatinamünt pistetuna külma kuningvette:

Algul,
03.09.2007 kl. 16:06:48


2. Sama protsess 10 minutit hiljem, kui kuningvesi on keema läinud.

Keevas kuningvees,
03.09.2007 kl. 16:17:12


3. 4 ööpäeva pärast on enamus plaatinast jõudnud ära reageerida

4 päeva hiljem,
07.09.2007 kl. 16:35:46


.
Date
Source Own work
Author Andres Punning, kuningveega solgutas Urmas Johanson

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