Alex BlokhuisHoCl3 π¬ π βοΈ π
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CuSO4 & KCl π¬ π βοΈ
A pleasant succession of crystal shapes. The star-shaped ones can hardly be discerned at the end.
What else do we see? π¬
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RuCl3 & NaCl in evaporating H2O π π¬ βοΈ
Fairly small quantities of RuCl3 can produce pitch black aqueous solutions, from which we gradually see crystals of NaCl emerge here.
What else do we see?
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Rhodium (iii) chloride is a deliquescent substance that forms red aqueous solutions. It is here combined with NaCl. One of the stable phases we may thus afford is Na3RhCl6.
What else do we see?
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βοΈ cyanotype βοΈ chemistry βοΈ
In cyanotype, we employ K4Fe(CN)6 and a light-sensitive source of Fe(III), to displace K+ and form insoluble prussian blue. Here instead I added an excess of FeCl3β’7H2O as a moisture-sensitive source of Fe(III). Dark shades of green and blue indeed develop initially, but we then proceed to form something else.
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What else do we see?ππ€
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In cyanotype, we employ K4Fe(CN)6 and a light-sensitive source of Fe(III), to displace K+ and form insoluble prussian blue. Here instead I added an excess of FeCl3β’7H2O as a moisture-sensitive source of Fe(III). Dark shades of green and blue indeed develop initially, but we then proceed to form something else.
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What else do we see?ππ€
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MnCl2β’5H2O π in HgCl2(aq). After two days of dissolution and growth due to humidity variations, we're now gradually seeing very neat crystal shapes that develop.
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what else do we see? π¬
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what else do we see? π¬
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πβοΈπ§ͺπ§«π§οΈ Deliquescent HgCl2 picks up moisture to form a solution. Some CoCl2β’6H2O also enters and now the moisture content is directly reflected in the color of the solution.
This was filmed on a rainy day with some dry periods, and we see periods of crystal growth (β
) and periods of crystal dissolution (π§οΈ) , remodeling the shape of the grains π.
What else do we see? ππ€
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CuCl2 & LiCl βοΈ π§ͺ π π¬
anhydrous CuCl2 is a brown substance, which progressively turns green (and then blue) upon pickup of moisture. The CuCl2 we start with here has already developed quite a few green patches and is clearly not as dry as it could have been. Upon addition of highly deliquescent LiCl, we soon recover a brown color. 1/2
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anhydrous CuCl2 is a brown substance, which progressively turns green (and then blue) upon pickup of moisture. The CuCl2 we start with here has already developed quite a few green patches and is clearly not as dry as it could have been. Upon addition of highly deliquescent LiCl, we soon recover a brown color. 1/2
#chemtoots #chemistry #realtimechem #science #scheikunde #physics #experiment #timelapse #crystals #microscope #stem #systemschemistry