metalresearcher
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What happens here (Heating K2S2O8) ?
I was curious what would happen when heating potassium perdisulfate (K2S2O8).
I heated a bit of it in a test tube using a mild Bunsen flame.
It started fuming and some white sublimate appeared on the wall.
Is it SO3 ?
https://www.metallab.net/jwplayer/video.php?f=/forums/K2S2O8...
[Edited on 2025-1-29 by metalresearcher]
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Rainwater
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Yes. Most if not all sulfate based salts(to my knowledge) , upon strong heating, decompose into SO3.
I used that stuff a while back to polymerizatize a sodium silicate solution and fix cracked glass
"You can't do that" - challenge accepted
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kmno4
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From basics of chemistry:
K2S2O8 -> K2S2O7 +1/2 O2 -> K2SO4 + SO3
Слава Україні !
Героям слава !
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Texium
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Thread Moved
29-1-2025 at 16:19 |
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