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Collection of copper compounds.
you may be interested in reviewing the entries to the 'copper challenge' that ran about 18 months ag ... |
14-1-2017 at 04:12
by: diddi |
Periodic Table Display
very nice guys... |
12-1-2017 at 03:27
by: diddi |
thallium chemistry
yes. it is very rective and oxidises easily in air (goes golden-grey in seconds, then all sorts of ... |
6-1-2017 at 16:22
by: diddi |
thallium chemistry
I will be watching with interest. I have some Thallium at my disposal and I love pretty colours! |
5-1-2017 at 15:39
by: diddi |
Unknown Rock????
it is definitely not a meteorite. I collect them |
5-1-2017 at 01:04
by: diddi |
Tantalum Recovery Experiment from Tantalum Capacitors
^
easily mistaken for spam |
30-12-2016 at 11:22
by: diddi |
Chinese Hotplate/Stirrers
the chinese one I bought had a nice digital readout and looked great. when I used it the first time ... |
30-12-2016 at 03:38
by: diddi |
The Short Questions Thread (4)
visit your local motor mechanic. they buy o ring assortments for air conditioners and general use. ... |
28-12-2016 at 04:53
by: diddi |
Titration troubles
what was the difference in you titration volumes? repeat again to get another value which will be c ... |
27-12-2016 at 18:37
by: diddi |
Titration troubles
I am worried by the small quantities used. measuring 1ml accurately is not easy unless you have a pr ... |
27-12-2016 at 03:00
by: diddi |
Ideas for tormaline.
it is a pretty tough mineral. I use HF to clean it and it survives very well |
25-12-2016 at 20:23
by: diddi |
My library
I have a 3 volume leatherbound set of the complete works of shakespeare from 1865. looks nice on my ... |
25-12-2016 at 20:09
by: diddi |
Unknown mineral
It does have the right structure for garnet and is probably almandine rather than pyrope (which tend ... |
19-12-2016 at 13:28
by: diddi |
Proper Use of Thermocouple
the thermocouple metals may be attacked by your distilate so YES always protect with glass. ensure ... |
12-12-2016 at 19:09
by: diddi |
Propositioned by U2U
just ban them full stop. |
11-12-2016 at 17:04
by: diddi |
Propositioned by U2U
I got one too. passed on to mods. |
11-12-2016 at 13:29
by: diddi |
Unknown Rock????
it looks like a micacious schist to me?
yes silicon carbide is man made. it often appears on eba ... |
6-12-2016 at 03:21
by: diddi |
Wanted: Mercury
how much do you need |
19-11-2016 at 15:33
by: diddi |
DIY power supply for electrolisis
make sure the fans are working. mine melted when I left it running in my garage for a couple of day ... |
14-11-2016 at 17:14
by: diddi |
DIY power supply for electrolisis
have to agree with aga (did I just say that ?)
a PSU is cheap and not that nasty, and if you blow ... |
14-11-2016 at 13:37
by: diddi |
Polishing scratches from a microscope lens?
you can buy very fine diamond paste. it is used for gem stone faceting which I do. it is MUCH fine ... |
11-11-2016 at 15:47
by: diddi |
Gold Recovery Computer Scrap Complete Process
I have been playing in this area for a while now and to be honest, unless you have access to tonnes ... |
5-11-2016 at 14:31
by: diddi |
Collection of colored gases/vapors
huge vote of encouragement to you woelen. I am very keen to see some more colours! |
17-10-2016 at 13:44
by: diddi |
Clean ancient coins?
perhaps you can recrystallise the coins from the royal blue solution? |
17-10-2016 at 13:41
by: diddi |
Cheap titanium sheet on ebay
if you are collecting. go for Gr1 or sponge if you can find any. and buyer beware of getting fake pu ... |
14-10-2016 at 22:03
by: diddi |
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