| Search |
| [Next Page] |
Deadly Simple Liquid
Forget what I said about the benzene and other aromatics- these absorb in the UV, not in the IR rang ... |
17-4-2013 at 12:30
by: garage chemist |
Deadly Simple Liquid
Can you try this with benzene, or other condensed aromatic compounds like naphthalene and benzpyrene ... |
12-4-2013 at 09:57
by: garage chemist |
Anyone interested by fluoro salts?
Plante, you didn't understand the problem. The resistance of your PP labware is not important. 70% H ... |
6-4-2013 at 02:52
by: garage chemist |
Anyone interested by fluoro salts?
I personally briefly possessed and handled a quantity of 72% HF in my home lab. By "briefly" I mean ... |
5-4-2013 at 11:31
by: garage chemist |
Na2Cr2O7 destroying cell?
Just have a look at Ebay. There are many sellers of titanium sheet that ship worldwide.
This is th ... |
1-4-2013 at 13:48
by: garage chemist |
Na2Cr2O7 destroying cell?
Stainless steel is unsuitable as a cathode since nickel ions will be formed through corrosion, and t ... |
31-3-2013 at 08:39
by: garage chemist |
Dissolving Gold with Chlorine gas
A mixture of HCl and NaClO3 dissolves gold very rapidly upon warming, faster than full strength aqua ... |
10-3-2013 at 03:53
by: garage chemist |
Seeking help regarding unsuccessful sodium perchlorate cell
How is your platinum electrode built? Shape, surface area, current density? Wire or sheet? Or is it ... |
8-3-2013 at 22:57
by: garage chemist |
PTFE coating easily done
You need an aqueous dispersion of PTFE particles, which is an article of commerce.
Dip your metal ... |
8-3-2013 at 12:45
by: garage chemist |
What's the densest gas (or mix) you can create?
The perfluorocarbons are low-boiling and have an extremely high vapor density. Simply heat perfluoro ... |
8-3-2013 at 11:30
by: garage chemist |
Ammonium nitrate purification
If the impurity is calcium nitrate, adding gasoline will precipitate it as well. If it is to stay in ... |
27-2-2013 at 14:18
by: garage chemist |
Ammonium nitrate purification
I do not see how adding gasoline to precipitate the AN would not precipitate the impurities as well. ... |
27-2-2013 at 13:44
by: garage chemist |
Ammonium nitrate purification
Has someone already tried recrystallizing AN from methanol or ethanol? The solubility in these solve ... |
27-2-2013 at 13:32
by: garage chemist |
Bath circulator corrosion
Don't use glycol/water mixes for temperatures below -15°C, they become very viscous and the pump wi ... |
12-2-2013 at 21:59
by: garage chemist |
Suitable test tubes for use with 48% HF
A nice little synthesis with aqueous HF is the preparation of potassium tetrafluoroborate, KBF4. I'v ... |
10-2-2013 at 15:04
by: garage chemist |
Ether drying, amount of Na needed?
You should pre-dry the ether by stirring with anhydrous CaCl2 overnight. Then let it settle, decant ... |
2-2-2013 at 13:27
by: garage chemist |
Clean Sulfur Dioxide Gas
If you can actually get the bottled gas from a supplier, consider buying an old medical oxygen or ot ... |
30-1-2013 at 11:18
by: garage chemist |
Fixing sulphur of the air
The other way round it makes sense: using sulfur powder to fix mercury vapors from air. I have done ... |
28-1-2013 at 11:11
by: garage chemist |
SOCl2: carboxylic acid to acid chloride: impurity!
Thionyl chloride is not completely stable against heat, slightly decomposing above 100°C, giving S2 ... |
23-1-2013 at 06:18
by: garage chemist |
Extraction of HAuCl4 With Ether
I meant the removal of nitric acid from aqua regia in which gold alloys have been dissolved.
I usu ... |
19-1-2013 at 12:32
by: garage chemist |
Extraction of HAuCl4 With Ether
There must not be any nitric acid present when adding diethyl ether. Please do not make the typical ... |
18-1-2013 at 09:18
by: garage chemist |
Refining mercury from cinnabar
That's a very interesting method neptunium. Good to see that there is also a viable wet chemical met ... |
30-12-2012 at 11:26
by: garage chemist |
Bromoskin
Water isn't good for washing off bromine from skin because the solubility is too low. You were lucky ... |
17-12-2012 at 13:29
by: garage chemist |
Potassium to Sodium Borohydride
Why can't you use the KBH4 as it is? Are you sure you really need NaBH4? |
14-12-2012 at 11:03
by: garage chemist |
Any simple alternatives to vacuum pumps?
For several years, I have done all my filtrations and vacuum distillations with an aspirator. It's t ... |
8-12-2012 at 06:04
by: garage chemist |
| [Next Page] |
