Bedlasky - 7-7-2019 at 04:50
Hi.
I decided to let evaporate some water from ammonium oxalate solution. I heated up and after 20 minut or so I realized that ammonium oxalate probably
decomposed. I read that first decompose to oxamide and then to CO and CO2. I didn't see any bubbles but I am not sure - did in temperatures bellow
100°C released carbon monoxide gas?
Tsjerk - 7-7-2019 at 07:32
Why do you think it decomposed? It is stable up to 155.
https://dacemirror.sci-hub.tw/journal-article/242aa518bc0e23...
fusso - 7-7-2019 at 10:21
I tried making and boiling such solution indoors. I didnt feel uncomfortable or die from that.
[Edited on 190707 by fusso]
Bedlasky - 7-7-2019 at 10:22
For example:
https://www.sciencedirect.com/science/article/abs/pii/001021...
http://www.sciencemadness.org/smwiki/index.php/Ammonium_oxal...
Tsjerk - 7-7-2019 at 12:57
Quote: Originally posted by Bedlasky
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|| For example:
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|| https://www.sciencedirect.com/science/article/abs/pii/001021...
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|| http://www.sciencemadness.org/smwiki/index.php/Ammonium_oxal...
Did you read the sciencedirect article? It actually says the anhydrous salt decomposes at 155. The SM wiki is wrong as many of them are.
Bedlasky - 8-7-2019 at 12:16
Sciencedirect article says that decomposition starts on 105°C.
Tsjerk - 8-7-2019 at 13:02
No it doesn't, it says it loses water at 105, the anhydrous salt is stable up to 155.
Second reference: https://sci-hub.tw/https://doi.org/10.1111/j.1151-2916.1971....
Edit: next time: copy the DOI next to the abstract you see, go to sci-hub.tw and read the full length article. You didn't even had to read the
full-length article as the answer is in the introduction.
[Edited on 8-7-2019 by Tsjerk]