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Nitromethane extraction
I tried another approach, of 40% nitromethane RC fuel IIRC.
Vacuum distilled it to remove oil, si ... |
14-2-2010 at 07:45
by: bahamuth |
Anhydrous IPA + HCl
I am in the same situation soon.
Also need it fairly dry. My route will be to dry the IPA with ei ... |
12-2-2010 at 14:17
by: bahamuth |
removing trace copper impurities from AgNO3
Dissolve in HCl and do the chloride way once more, wash the silver chloride with several liters of R ... |
6-2-2010 at 19:07
by: bahamuth |
Easy to make aromatic esters
Sulfuric acid is for me the best "catalyst" for estrification of simple esters.
But remember to h ... |
6-2-2010 at 18:59
by: bahamuth |
Easy to make aromatic esters
Last year we had a class with new curriculum and one of the labs involved was making esters, but tho ... |
5-2-2010 at 11:50
by: bahamuth |
Rare earth metals, mischmetal, etc
Are you thinking of adding [b]potassium ferricyanide[/b] and precipitating [b]prussian blue[/b], fil ... |
5-2-2010 at 10:19
by: bahamuth |
Rare earth metals, mischmetal, etc
Tried your, knmo4, method but i couldn't get it right, yellow precipitate formed right away. Was ver ... |
1-2-2010 at 17:01
by: bahamuth |
Diethyl Ether Disposal
By the way, the KI method is only for extreme levels of peroxides, as far as I have experienced.
... |
30-1-2010 at 20:49
by: bahamuth |
Diethyl Ether Disposal
Half a year ago, some not so knowledgeable people at my faculty rotavapped 500 diisopropyl ether; t ... |
29-1-2010 at 11:17
by: bahamuth |
Diethyl Ether Disposal
As long as the Et2O hasn't been exposed to oxygen e.g. the flask not opened hundreds of times last s ... |
28-1-2010 at 22:06
by: bahamuth |
Silver purification
Hi.
Think I can help you there.
Recently I have done this a lot; take your washed AgCl and mix i ... |
28-1-2010 at 14:16
by: bahamuth |
Lab Table Top?
One of the teachers I had years ago told me that in his days (probably around the sixties) they had ... |
28-1-2010 at 06:13
by: bahamuth |
dropwise addition for 8 hours
You could try a [b]addition funnel[/b], and they come in a variety of sizes.
Just count drops per ... |
26-1-2010 at 14:13
by: bahamuth |
potassium disposal
Tried to provide a means for the recovery of, even if cheap, Potassium, to remove the oxide layer an ... |
25-1-2010 at 09:11
by: bahamuth |
potassium disposal
You can cut your K metal under any hydrocarbon solvent that is water and oxygen free, but your liq. ... |
24-1-2010 at 12:00
by: bahamuth |
ammonium bisulphate?
A quick search on the net revealed that ammonium bisulfate is formed during thermal decomposition of ... |
24-1-2010 at 11:45
by: bahamuth |
getting mercury salts out of vacuum glassware
Would suggest, if disposal of the mercurial waste is no problem to clean it with [b]aqua regia[/b], ... |
22-1-2010 at 17:17
by: bahamuth |
Microwave transperant solvents
Dipole solvent are not transparent to microwaves, one should expect at least.
Cannot give much a ... |
22-1-2010 at 07:23
by: bahamuth |
Ammonium acetate
Have to agree with Foss_Jeane and mnick12, tried different methods and only that way was satisfactor ... |
21-1-2010 at 15:20
by: bahamuth |
potassium disposal
Read somewhere yellow/red color for superoxides/peroxides.
Myself, I just, when I need small amou ... |
19-1-2010 at 09:26
by: bahamuth |
potassium disposal
I would just cut of the oxidized layers under regular gasoline (if you got cubes or large rods) and ... |
19-1-2010 at 08:10
by: bahamuth |
Hand Vaccum pumps
Think you will need a somewhat bigger vacuum source than a hand pump for a rotavap, been working a l ... |
4-11-2009 at 11:44
by: bahamuth |
Preparation of Iodomethane
I washed with 0.1M NaOH because I found this old student assignment on the net somewhere, cannot rem ... |
3-11-2009 at 14:32
by: bahamuth |
Which experiments do you propose I start with?
You could buy a buret, (relative cheap on ebay) and start off with acid/base titration of the differ ... |
3-11-2009 at 10:27
by: bahamuth |
Preparation of Iodomethane
My workup.
Methyliodide, Iodomethane.
To a 250ml RB flask in a cold water bath there was add ... |
3-11-2009 at 10:11
by: bahamuth |
