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Easy anhydrous ammonium acetate using Ziplock bags.
I made anhydrous ammonium acetate rather easily. Fist I made NH3 gas in a ziplock bag, as described ... |
7-9-2005 at 05:06
by: Tacho |
Separation of NaCl and KCl
No, he's not kidding. KCl [b]is[/b] radioactive.
Not radioactive enough to worry, though ... |
2-9-2005 at 06:32
by: Tacho |
H2SO4
Really interesting. Patent number is? |
1-9-2005 at 10:41
by: Tacho |
DIY heating mantle
Cyrus, I think your design is brilliant! The best idea for a DIY heating device I've seen so fa ... |
22-8-2005 at 06:25
by: Tacho |
Electricity generated pyrotechnically.
I read somewhere about this cells that generated power for missiles. Can't remember the refs. T ... |
19-8-2005 at 03:48
by: Tacho |
crap yields of phenol-alkyl ether
Kalle,
I'm surprised. In my humble bag of chemical tricks, alkylation of phenols in DMF with ... |
10-8-2005 at 09:04
by: Tacho |
methyl iodide
Yes, the solution turns brown. It has nothing to do with water, no water is added to the flask. I gu ... |
9-8-2005 at 03:29
by: Tacho |
methyl iodide
Congratulations Kalle! Interesting aproach to the problem. I would think the water introduced would ... |
8-8-2005 at 03:32
by: Tacho |
Advice on Pond Pump for aspirator setup?
0,71HP?
I used a 0,25HP pump and used 2 aspirators in parallel, because there was too much pressu ... |
4-8-2005 at 03:39
by: Tacho |
How is amalgamated Al supposed to look like?
1- a spatula tip of Hg2Cl2 (calomel) in a test tube.
2- add 1ml HCl 37%
3- add 1ml H2O2 as con ... |
3-8-2005 at 08:41
by: Tacho |
Silver Photo Emulsion
Your post is too vague to get any help.
What exactly are you trying to make? A science fair proje ... |
1-8-2005 at 09:46
by: Tacho |
Photochlorination apparatus, setup of multiple UV LED lights, help please...
I agree with 12xy. The leds are likely to fail soon if you have too much current flowing through th ... |
31-7-2005 at 15:06
by: Tacho |
Geopolymeres
Just for the record: I meant "borax solution + sodium silicate solution" and "ascorbi ... |
22-7-2005 at 05:34
by: Tacho |
A true “gel” silica gel binder for graphite (or PbO2?) electrodes.
Sorry, in that thread I meant "borax solution + sodium silicate solution" and "ascorb ... |
22-7-2005 at 05:26
by: Tacho |
A true “gel” silica gel binder for graphite (or PbO2?) electrodes.
I just tested an electrode made of powdered graphite binded with silica gel (following the discussio ... |
21-7-2005 at 15:39
by: Tacho |
Phosphoric acid etching??
Sorry, I realize now that you are interested in the reaction, not in practical considerations about ... |
20-7-2005 at 10:32
by: Tacho |
Phosphoric acid etching??
I doubt you can do any practical etching with phosphoric acid. It's such a common and cheap che ... |
20-7-2005 at 09:39
by: Tacho |
Phosphoric acid etching??
Interesting. I have boiled 85% phosphoric many times without noticing any etching in my glassware. ... |
20-7-2005 at 08:40
by: Tacho |
Geopolymeres
My borax experiment took about 4 days to gellify. Maybe it gellified because part of the water evapo ... |
18-7-2005 at 07:32
by: Tacho |
Queries on the silver mirror process
I have made silver nitrate by electrolisys of a silver anode in a nitrate (sodium IIRC) electrolyte. ... |
18-7-2005 at 06:40
by: Tacho |
Geopolymeres
I think you can get all sorts of consistencies, depending on concentrations.
I made a "stand ... |
18-7-2005 at 04:20
by: Tacho |
Geopolymeres
I think it's just the classic silica gel formation. That's why it was called gel. I tried ... |
12-7-2005 at 03:36
by: Tacho |
Geopolymeres
I used to think that the solid I got from mixing sodium silicate with common mineral acids was silic ... |
11-7-2005 at 03:58
by: Tacho |
Etching Pyrex to "Frost" or Roughen Surface
In my experience, HF solution only dissolves the surface of glass leaving a smooth surface behind. H ... |
9-7-2005 at 02:43
by: Tacho |
Etching Pyrex to "Frost" or Roughen Surface
Once I fixed my heating mantle with neutral sodium silicate as a glue. When I heated a flask in it, ... |
8-7-2005 at 10:59
by: Tacho |
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