MrHomeScientist
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Looking for Dyes
I am looking for the following dye solutions:
Safranine (CAS# 477-73-6) 0.10 mM
Resazurin (CAS# 62758-13-8) 0.10 mM
Phenanthrenequinone (CAS# 84-11-7) 4.80 mM
Erioglaucine (CAS# 3844-45-9) 0.10 mM
Tetrazolium chloride (CAS# 298-96-4) 1.00 mM
This is to experiment with variations in the classic Blue Bottle demonstration. I found a nice paper (thanks to Corrosive Joeseph for the full text)
that I'd like to replicate (attached here for reference). I need either these spcific solutions or the solid dyes, probably only a gram of each.
The paper also uses Benzoin (CAS# 119-53-9) as the reductant; I'd like to try this with the standard dextrose first, but if that doesn't work I'd need
a source for benzoin as well.
Anyone have any suppliers that have these dyes? Or does anyone have a tiny amount they'd be willing to sell me?
Attachment: Rapid Blue Bottle Experiment.pdf (5.4MB)
This file has been downloaded 728 times
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wg48temp9
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Ebay UK has three of your listed dyes in addition to Methylene blue and Indigo carmine.
Yes that is an interesting paper.
I am wg48 but not on my usual pc hence the temp handle.
Thank goodness for Fleming and the fungi.
Old codger' lives matters, wear a mask and help save them.
Be aware of demagoguery, keep your frontal lobes fully engaged.
I don't know who invented mRNA vaccines but they should get a fancy medal and I hope they made a shed load of money from it.
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Sulaiman
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Methylene blue plus glucose (dextrose) is interesting, I had to demonstrate to all of my family - not impressed.
I first came across the reaction after a little research
because I bought six old Thunberg tubes via eBay,
- they were weird, and most importantly, cheap.
I also liked to observe the surface layer, just a thin layer of blue where oxygen can diffuse into the glucose solution.
CAUTION : Hobby Chemist, not Professional or even Amateur
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Ubya
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benzoin can be easly made by the condensation of benzaldehyde using thiamine (vitamin B1) as the catalyst (instead of HCN)
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feel free to correct my grammar, or any mistakes i make
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MrHomeScientist
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Thanks for Carbon8 for the safranine! If anyone knows of any others from my list, let me know. I couldn't find any of them on eBay UK
back when wg48temp9 posted, for some reason.
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wg48temp9
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Quote: Originally posted by MrHomeScientist  | | Thanks for Carbon8 for the safranine! If anyone knows of any others from my list, let me know. I couldn't find any of them on eBay UK
back when wg48temp9 posted, for some reason. |
In case I am going mad I checked again and found only two this time from your list but I did not spend much time on it. One trick is search with
alternative names for them. See the links below
https://www.ebay.co.uk/itm/Instant-Sunshine-Brilliant-Blue-F...
https://www.ebay.co.uk/itm/Microbiological-stains-Safranine-...
and if you want methylene blue for the orginal blue bottle experiment
https://www.ebay.co.uk/itm/Methylene-Blue-BP73-ACS-C-I-52015...
I paid about half of that price for just 5g.
[Edited on 8/26/2019 by wg48temp9]
I am wg48 but not on my usual pc hence the temp handle.
Thank goodness for Fleming and the fungi.
Old codger' lives matters, wear a mask and help save them.
Be aware of demagoguery, keep your frontal lobes fully engaged.
I don't know who invented mRNA vaccines but they should get a fancy medal and I hope they made a shed load of money from it.
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