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My adventures in diy battery making - batteries are hard.
[rquote=683014&tid=159397&author=zimirken]






In any case, I received a pair of sm ...		 7-4-2023 at 02:00
by: rolynd
My adventures in diy battery making - batteries are hard.
As for pumps I had some good experience with the small brushless DC pumps from Rotek in austria . Th ...		 30-3-2023 at 04:03
by: rolynd
Identification of unknown metal
niobium would also be a candidate. see if it anodizes in dilute sulfuric or citric acid thel its li ...		 16-10-2020 at 03:30
by: rolynd
Solubility of KBr, NaBr in Ethylene Glycol /Propylene Glycol
I need some Solubility values for KBr and NaBr in both 100% Ethylene Glycol and Propylene Glycol (Wa ...		 11-4-2020 at 07:51
by: rolynd
Carburizing experiments
According to the vid description this guy is using a mixture of
45g urea
40g potash
10g sodium ...		 13-10-2018 at 20:55
by: rolynd
More on PbO2 electrodes
ingenious setup for in situ generation!

your main problem though seems to be centered around
a ...		 31-5-2018 at 02:18
by: rolynd
Electrochemical color passivation of stainless steel

[quote]
You can also realize this schematic with only a single output signal generator, but you h ...		 30-5-2018 at 04:02
by: rolynd
Electrochemical color passivation of stainless steel
thanks , a schematic would be splendid. I am not an electronics whiz unfortunately. I am better at c ...		 29-5-2018 at 19:11
by: rolynd
Electrochemical color passivation of stainless steel
Pulse/pulse reverse electrolysis is interesting. I have been using that with copper plating/electrof ...		 29-5-2018 at 00:24
by: rolynd
Ammoniacal Silversulfamate Solution, Dangerous?
Hi,
I was looking for a non-cyanide Silverplating solution and came upon Patent US 4279708 A which ...		 18-10-2016 at 02:09
by: rolynd
So, no easy way it seems
Thanks guys,
as said I will stay away from using strong acids and especially something like HF and ...		 9-2-2007 at 11:52
by: rolynd
Electro-Etching of Titanium
I want to electro-etch titanium and want to know if anybody has an idea what to use for electrolyte. ...		 9-2-2007 at 07:10
by: rolynd
Making Gold III chloride?
Have thought of this myself but the price would be more than the other variant. I could also go an g ...		 3-1-2006 at 12:53
by: rolynd
Making Gold III chloride?
I have done some research on this and some new questions did arise.
So far the Procedure is:
- mak ...		 3-1-2006 at 09:35
by: rolynd
Making Gold III chloride?
Thank you very much. So, no easy approach. Some nitric acid is at hand so I will try the traditional ...		 30-12-2005 at 17:20
by: rolynd
Making Gold III chloride?
I need some Goldchloride for colouring purpose.
Buying seems too expensive. So I opted for making s ...		 30-12-2005 at 05:36
by: rolynd

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