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Ammonia Generation
No one mentions cooling the receiver...is it a given or unimportant? My suggestion is buying glass t ... |
30-12-2018 at 09:38
by: S.C. Wack |
Black humour (?) of Victorian chemists
[i]...read before the Cambridge Philosophical Society on April 19th, see their Transactions, vol. ix ... |
29-12-2018 at 10:59
by: S.C. Wack |
Extraction of gallic acid
70% acetone (or MIBK) has been recommended for a long time for leaf material, and crushed air-dried ... |
25-12-2018 at 19:43
by: S.C. Wack |
The Short Questions Thread (4)
[rquote=542148&tid=25055&author=Sydenhams chorea]I found a reference for a Czech journal tha ... |
25-12-2018 at 07:45
by: S.C. Wack |
Porous plate
The smallest size of plate both today and 100 years ago was 150 mm.; Coors sells them 6 mm thick. Li ... |
24-12-2018 at 04:18
by: S.C. Wack |
Rusting from HCl Bottle
It's weird how OTC sulfuric acid drain cleaners are often sold in bottles in bags, but the rows and ... |
24-12-2018 at 04:06
by: S.C. Wack |
Porous plate
They sound difficult to clean and the subject has come up before. Coors does not define their white ... |
23-12-2018 at 12:52
by: S.C. Wack |
Potassium permanganate
The only use of concern is entirely in South America, and even there it is nonessential. There is no ... |
7-12-2018 at 17:38
by: S.C. Wack |
Cheap Potassium Iodide
The thinking was neutralizing HCl and K (bi)carbonate or hydroxide exactly should be a low hurdle.
... |
6-12-2018 at 19:26
by: S.C. Wack |
Cheap Potassium Iodide
[rquote=559467&tid=90181&author=Sulaiman]I guess that potassium chloride may increase the so ... |
6-12-2018 at 15:38
by: S.C. Wack |
UV lamp for TLC visualization
A battery power item sold for rocks that either emits 254 or is represented fraudulently: https://ww ... |
6-12-2018 at 15:21
by: S.C. Wack |
Pulverizing Ni/Al for Raney Nickel
That is my pet peeve of ebay, people reporting things as requiring hazmat when it isn't hazmat. Your ... |
2-12-2018 at 15:29
by: S.C. Wack |
Pulverizing Ni/Al for Raney Nickel
I've read dozens of articles that dissolve the Al but don't remember any that specified not-powder, ... |
2-12-2018 at 13:49
by: S.C. Wack |
Pulverizing Ni/Al for Raney Nickel
Ukraine? Titanium? Who sells Raney alloy with Ti in it? Is there actually organic chemistry lit usin ... |
2-12-2018 at 13:28
by: S.C. Wack |
working with drums
[rquote=556113&tid=106959&author=CouchHatter]Are there any novel ways of working with large ... |
27-11-2018 at 16:18
by: S.C. Wack |
Cheap Potassium Iodide
[rquote=556559&tid=90181&author=Deathunter88]What's the average price of KI in the USA? I fa ... |
27-11-2018 at 15:51
by: S.C. Wack |
Demethylation of Vanillin and Eugenol
PS For instance Allen's Commercial Organic Analysis (1910) tells of the method of Thoms that determi ... |
25-11-2018 at 14:26
by: S.C. Wack |
Demethylation of Vanillin and Eugenol
The alcohol part(s) is being converted to benzoate ester, perhaps with benzoyl chloride. Hydrolysis ... |
24-11-2018 at 09:20
by: S.C. Wack |
Alloying nickel and aluminum to make Raney nickel
Weygand/Hilgetag details a process. Raney also claims a thermite process can give an active catalyst ... |
20-11-2018 at 17:04
by: S.C. Wack |
Cork withstanding hot HCl & ammonia gas
One should already have water glass and read the old lab manuals, because it's useful...corks might ... |
19-11-2018 at 17:02
by: S.C. Wack |
Extraction of gallic acid
It's impossible to say without knowing the source or how it was extracted. Transesterification is ev ... |
18-11-2018 at 11:36
by: S.C. Wack |
Very low yield of nitroethane
IMHO the ideal solvent would be ethyl iodide. The 1954 JACS articles with OK yield of nitrobutane di ... |
16-11-2018 at 18:03
by: S.C. Wack |
Extraction of gallic acid
[rquote=552895&tid=104294&author=Boffis]dilute hydrochloric or sulphuric acid but acid hydro ... |
15-11-2018 at 20:24
by: S.C. Wack |
Vacuum Aspirator Problems
Maybe the problem is you bought a Chinese "Humboldt" ripoff instead of one of the genuine made in th ... |
11-11-2018 at 16:57
by: S.C. Wack |
Cyanide synthesis by thermal decomposition of Thiocyanate
I would think that there is a way of doing things that makes chemistry an art; perhaps the exact the ... |
11-11-2018 at 09:06
by: S.C. Wack |
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