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fibreweb wrote:I set this up on Friday using Pascoes Bluo that i got and Coles and am very dissapointed in the results.
Nothing much has happened. The liquid didn't migrate up the cardbord tree at all and there are no signs of crystals.
I did use ammonia but I did use my neat ammonia which may have been too strong?
I tried it also with some chromatography paper made into a tree, this has gone blue with the liquid moving up it with a little crystal growth (blue) but nothing like the crystal growth I was lead to expect.
I wonder where I have gone wrong
As mentioned previously, Bluo doesn't appear to actually contain Prussian Blue any more. Apparently it's long since been upgraded to contain optical brigtener nanoparticals instead; as have its competors, so it seems.
Graham Kemp wrote:Pascoes' MSDS isn't particularly forthcoming about the contents.
However, Bluo appears to reference a use of optical brighteners rather than bluing.
Bluing is just a bit olde tech.
The old fashioned bluing agents just don't seem to be available anymore, and optical brighteners won't work for the experiment.
mtg wrote:Finally back on line, will be trying the crystal tree tomorrow, sounds like most sat solns for crystals should work? What's the silver crystals on copper? Is it silver nitrate and how do you get it on the copper?
Suspend a thin copper wire (or tuning) in silver nitrate solution, then just let the chemistry happen.
Thanks for these ideas. Have made the silver/copper ones before but had forgotten! And managed to watch youtube clip (awesome) once.... but now my computer wont let me watch it again. Will have to try on another. Looks so cool hope we can do it, wonder if those cheap kits you get from discount stores use the same chems???
