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Chemicals
With only a few posts to "lose" it may be better if you simply drop the contentious forum tag name a ...
7-10-2010 at 13:47
by: Contrabasso
Setting up a burner
Better to get a matched pair, -same gas! The jets are different and the fuel air mix is different fo ...
5-10-2010 at 11:38
by: Contrabasso
Frightning chemicals on ebay
Well someone on ebay uk was selling a box with one bottle of conc nitric and one of conc sulphuric, ...
4-10-2010 at 14:01
by: Contrabasso
Setting up a burner
A flame is one very valid heat source for a lab, there are several others! A careful risk assessment ...
3-10-2010 at 22:40
by: Contrabasso
Setting up a burner
There are some bunsen burner type torches available to screw onto some disposible gas cannisters in ...
3-10-2010 at 10:29
by: Contrabasso
sulfuric acid turned black
Likely it's an oxidation product from the plastic or more likely from the lid gasket.
29-9-2010 at 23:29
by: Contrabasso
Nitric Acid Synthesis
At 45c with a 14C condenser you are challenging distillation. You could well use cooler water (it wi ...
28-9-2010 at 08:57
by: Contrabasso
Tutorial for making a miniature chlorate cell
The industrial process for Perc is in two parts, First the chloride is electrolysed to chlorate, thi ...
27-9-2010 at 11:04
by: Contrabasso
UK Chemical Regulations
All this until the "Explosives Precursors" EU restrictions come into force over the next few years w ...
26-9-2010 at 05:54
by: Contrabasso
Nitric Acid Synthesis
OK you should have 105ml but be satisfied at 100!

Firstly moderate the vacuum! While working at l ...
26-9-2010 at 00:49
by: Contrabasso
Why has Mg no flame color ?
Spectral emissions from a pure specimen - a sample in a vacuum tube will be from the sample only. Em ...
25-9-2010 at 03:13
by: Contrabasso
LET THIS SIGNAL THE END OF THE FRIDGE PUMP QUESTIONS!
Airflow needle valve came from a pet shop (fish tank section) for £2.99 and it's nominally waterpro ...
25-9-2010 at 02:57
by: Contrabasso
Tutorial for making a miniature chlorate cell
The electrodes are critical and Swede has done lots of research into materials sizes and types to ge ...
25-9-2010 at 02:46
by: Contrabasso
Wanted glass capillary
Sadly my only glass tube was described as "Pyrex" so it's not easy to work.
25-9-2010 at 01:53
by: Contrabasso
Separating ammonium nitrate from urea
well urea is available on ebay in the UK so that's not a great find. Firstly look at the cost of a p ...
23-9-2010 at 13:53
by: Contrabasso
Wanted glass capillary
I'm looking for the glass tip to an oxygen bubbler to clear RFNA. So I was thinking of something mor ...
23-9-2010 at 13:00
by: Contrabasso
Wanted glass capillary
I'm looking for a small amount of glass capillary tube and ebay currently offers none.

Has anyon ...
22-9-2010 at 22:11
by: Contrabasso
Anorganic peroxides
Pyrotechnics by Shidlovskiy does have slight mention of metal peroxides but not much and not in sign ...
21-9-2010 at 14:34
by: Contrabasso
B&Q
If those of us who live in the UK buy a bottle then this will probably become a regular stock item o ...
21-9-2010 at 12:23
by: Contrabasso
B&Q
If B&Q is local to you look in the drain cleaner section for 91% sulphuric drain opener.
21-9-2010 at 11:16
by: Contrabasso
Nitric Acid Distillation Chemical Cleanup
Hot water from the tap and half an hour usually sees all the residue dissolved and pourable.
17-9-2010 at 02:49
by: Contrabasso
LET THIS SIGNAL THE END OF THE FRIDGE PUMP QUESTIONS!
Well my target with fridge pomp vac distillation was(is still!) to distil off nitric acid at somethi ...
16-9-2010 at 23:49
by: Contrabasso
Anode for chloride electrolysis ?
Search the Techno chemistry section for "thoughts in Anodes" All the discussion is there.
13-9-2010 at 11:02
by: Contrabasso
DIY Centrifuge?
It's easy to get the speed you need, it's not so easy to get the balance stability that you need -or ...
13-9-2010 at 01:08
by: Contrabasso
Help with Water Aspirator Design
Well the fridge pump I have cost me £5 whatever that is in your currency, it's almost free. It came ...
5-9-2010 at 23:13
by: Contrabasso
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