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Eddygp
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@blogfast, So we finish where we had started: a vacuum is needed, along with a very high temperature.
there may be bugs in gfind
[ˌɛdidʒiˈpiː] IPA pronunciation for my Username |
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blogfast25
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In a nutshell.
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alkalimetals
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If I use a fridge compressor, reversed, can I obtain a vacuum below 10 mmHg? It's the maximum value described in the patent...
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blogfast25
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Personally I doubt that. But I'm no expert on fridge compressors...
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alkalimetals
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Thanks! But maybe it's sufficient a vacuum below 100 mmHg (I'm sure, in this case, fridge compressor works quite well...)
blogfast25, what do you think about?
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blogfast25
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Try it. But fridge compressors aren't designed to be run as vac pumps, remain aware of that. Only use this idea when you've conclusively proved the
fridge 'vac pump' can deliver and over prolonged periods of time too... 
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BackyardScience2000
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I just want to throw out there that I was able to distill cesium metal with no inert atmosphere, at normal pressures without many problems other than
a not so great yield. On my best run I was able to turn 20g of CsCl into 10g of Cesium metal. It's definitely not the most efficient way to do it
and nowhere near to being the best way. But it can be done. An inert atmosphere and reduced pressure are not necessary. Only highly preferred to
increase yields.
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j_sum1
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Quote: Originally posted by BackyardScience2000  | | I just want to throw out there that I was able to distill cesium metal with no inert atmosphere, at normal pressures without many problems other than
a not so great yield. On my best run I was able to turn 20g of CsCl into 10g of Cesium metal. It's definitely not the most efficient way to do it
and nowhere near to being the best way. But it can be done. An inert atmosphere and reduced pressure are not necessary. Only highly preferred to
increase yields. |
Welcome to SM.
Care to post photos if what you accomplished?
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nezza
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If you have any chlorate or perchlorate Caesium chlorate and perchlorate are pretty insoluble and easy to precipitate. It can then be used for
pyrotechnics and gives an interesting purplish coloured flame.
If you're not part of the solution, you're part of the precipitate.
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Bedlasky
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| Quote: Originally posted by nezza | | If you have any chlorate or perchlorate Caesium chlorate and perchlorate are pretty insoluble and easy to precipitate. It can then be used for
pyrotechnics and gives an interesting purplish coloured flame. |
Caesium perchlorate is sparingly soluble (1,974g/100ml at 25°C; 0,8g/100ml at 0°C). I don't know why K, Rb and Cs perchlorates are described as
insoluble, while CaSO4 is described as sparingly soluble and have lower solubility at room temperature then these perchlorates. But yes, they have
really low solubility which isn't common among perchlorates.
But caesium chlorate is soluble. I never read about any insoluble nitrate or chlorate.
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Fery
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I've bought some CsCl just only for demonstration of flame coloring, thanks for everyone for a lot of colorful experiments which are possible with Cs+
Although not truly insoluble, just only poorly soluble - basic bismuth nitrate should be the less soluble anorganic nitrate in water (less than 1g /
100 ml).
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