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Crystallization of supersaturated sodium thiosulfate

submitted by mintbbb

1 decade 2 years 9 months 1 week ago

YT: Crystallization of supersaturated sodium thiosulfate solution is initiated by the addition of the seed crystal.

3 Comments

Boise_Lib

says...

Chemistry is Fun, Mr. Wizard!

MarineGunrock

says...

We have Na2S2O3 at work, but what the hell did he use for the catalyst? I MUST KNOW.

mintbbb

says...

It is supersaturated (by heating it until it melts), so it doesn't need a catalyst. The seed crystal is a crystal of sodium thiosulfate itself. The liquid would re-crystallize on its on while it cools down, but slowly, and the seed crystal just helps it do it faster.