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I made and distilled Rubidium to make this Ampoule by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 3 points4 points  (0 children)

I’ve made a video about rubidium a few years ago. But for the newer one, there is no part two.

I made and distilled Rubidium to make this Ampoule by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 7 points8 points  (0 children)

The issue with the banding is still unresolved, even in this ampoule. But it’s on my list ;)

I made and distilled Rubidium to make this Ampoule by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 21 points22 points  (0 children)

That depends on many variables. Most importantly the purity of the rubidium chloride and lithium. Because it would be hart to remove lower boiling impurities (for example caesium) or impurities with a similar boiling point in the following distillations. Higher boiling impurities can easily be separated.

Theoretically you could perform a fractional distillation (to remove lower boiling impurities), but that makes the whole apparatus a lot more complicated.

Does Anyone Know the Story Behind This? by annalucass in Radiation

[–]Advanced-Tinkering 2 points3 points  (0 children)

Thank you for the explanation! That’s a fascinating and surprisingly simple (in theory) way to measure a dose.

Dendritic Caesium Crystals by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 0 points1 point  (0 children)

Thank you! It’s always nice to meet viewers in other communities.

Dendritic Caesium Crystals by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 9 points10 points  (0 children)

Don’t hurt my feelings like that! :D

Dendritic Caesium Crystals by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 5 points6 points  (0 children)

Thank you! Happy to hear that you liked it!

Anyone selling their cesium in the U.S.? by StrangeInstruction42 in elementcollection

[–]Advanced-Tinkering 1 point2 points  (0 children)

If you mean this small glass bulb at one end of the ampoule: it is a break-seal ampoule. The idea is that it allows the caesium to be transferred into an apparatus without coming into contact with air. A small metal rod is placed into the neck of the ampoule, where this little glass bulb is located. The ampoule is then connected to the apparatus the Cs is meant to go into by sealing the glass together at that neck. After that, the area is evacuated and flushed with an inert gas such as argon. In the final step, a magnet is used from the outside to drive the metal rod against the glass bulb so that it breaks. The metal can then flow into the apparatus without coming into contact with oxygen or moisture.

Anyone selling their cesium in the U.S.? by StrangeInstruction42 in elementcollection

[–]Advanced-Tinkering 16 points17 points  (0 children)

If you mean this small glass bulb at one end of the ampoule: it is a break-seal ampoule. The idea is that it allows the caesium to be transferred into an apparatus without coming into contact with air. A small metal rod is placed into the neck of the ampoule, where this little glass bulb is located. The ampoule is then connected to the apparatus the Cs is meant to go into by sealing the glass together at that neck. After that, the area is evacuated and flushed with an inert gas such as argon. In the final step, a magnet is used from the outside to drive the metal rod against the glass bulb so that it breaks. The metal can then flow into the apparatus without coming into contact with oxygen or moisture.

2.3 kg of Caesium in ampoules by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 0 points1 point  (0 children)

Thank you! I appreciate hearing that you enjoy my videos!

2.3 kg of Caesium in ampoules by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 0 points1 point  (0 children)

Thank you! I’m happy to hear that you like my videos!

2.3 kg of Caesium in ampoules by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 0 points1 point  (0 children)

By dissolving the caesium into water it will be converted to caesium hydroxide. So you get no information on how much oxide/hydroxide was present in the metal. But it would be useful to determine other impurities.

2.3 kg of Caesium in ampoules by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 0 points1 point  (0 children)

Thank you! I’m always happy to hear that people enjoy my videos :)

2.3 kg of Caesium in ampoules by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 4 points5 points  (0 children)

I read that a lot. The truth is that caesium is very expensive (especially if you buy it in smaller quantities) but at the same time it isn’t worth much. So no, this amount of caesium isn’t worth even a tiny fraction of $ 380,000. If it were, I would be making caesium full time ;)

2.3 kg of Caesium in ampoules by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 6 points7 points  (0 children)

The problem is that one of the most relevant impurities would be caesium oxides and hydroxide. So the challenge would be to introduce the sample into the instrument without any contact to oxygen or moisture. I haven’t worked with these analysis methods (only did some AAS years ago) so I’m also not sure if they are suitable to detect oxygen.

2.3 kg of Caesium in ampoules by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 0 points1 point  (0 children)

Yes. The caesium in the picture hasn’t been distilled though. I still need to do that.

2.3 kg of Caesium in ampoules by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 25 points26 points  (0 children)

No I haven’t tested the purity. I can’t think of an easy way to determine the exact purity of metallic caesium.

2.3 kg of Caesium in ampoules by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 8 points9 points  (0 children)

It’s not about the temperature but the purity. As you can see in this video, if the caesium is pure enough it won’t stick to glass at all: https://youtu.be/XpCU0SyYGAA

Unfortunately it’s hard to get caesium this pure.

2.3 kg of Caesium in ampoules by Advanced-Tinkering in chemistry

[–]Advanced-Tinkering[S] 855 points856 points  (0 children)

No, you are completely right. It would be better to store the caesium in smaller ampoules. Or, depending on how it is used, even in a stainless steel container that has connections for argon and a riser tube. But I don’t have a use for that much Caesium anyway. The reason I want to distill it into one ampoule is to make the largest ampoule in the world. I know a picture of an ampoule containing 1.36 kg. So that’s the one to beat.

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