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Glass for homemade pH electrode
I think the Amateur Scientist column in Scientific American described a DIY pH meter back in the day ...
6-2-2010 at 14:02
by: entropy51
Chemophobia
[quote]5th amendment - non-self incrimination right[/quote]The young man in that case pleaded guilty ...
6-2-2010 at 09:12
by: entropy51
Chemophobia
[rquote=171249&tid=13375&author=unome]
I also have flour, eggs & milk - and the knowled ...
6-2-2010 at 05:58
by: entropy51
Penicillin from acetanilide??
[rquote=171240&tid=13316&author=Sandmeyer]
[quote]But that leaves the conundrum of why you ...
5-2-2010 at 17:28
by: entropy51
Chemophobia
[rquote=171236&tid=13375&author=VestriDeus]When/Where do you think it will stop?[/rquote]Whe ...
5-2-2010 at 16:35
by: entropy51
Penicillin from acetanilide??
You seem to believe the peer reviewed literature is not worth much compared to Wikipedia.

But tha ...
5-2-2010 at 16:33
by: entropy51
Penicillin from acetanilide??
[rquote=171230&tid=13316&author=Sandmeyer] In fact such articles are verified by only a coup ...
5-2-2010 at 15:49
by: entropy51
Easy to make aromatic esters
[rquote=171228&tid=13368&author=Sandmeyer]actually it does not have to smell good or pleasan ...
5-2-2010 at 15:42
by: entropy51
Diethyl Ether Disposal
Thanks rrkss. That's good to know. It seems that EtOH wouldn't be good for Grignards though?
30-1-2010 at 12:33
by: entropy51
The short questions thread (2)
[quote]Does anyone know a good method for capturing CO.[/quote]One of my lab manuals gives a recipe ...
30-1-2010 at 12:26
by: entropy51
Diethyl Ether Disposal
Ethanol stabilizes chloroform against phosgene formation. I don't think it will stabilize Et2O agai ...
30-1-2010 at 11:03
by: entropy51
Bad days in the lab or with glassware?
[rquote=170758&tid=13214&author=havarti_gouda]
Moral of the story: Don't let strong NaOH so ...
30-1-2010 at 08:05
by: entropy51
Ethyl Acetate?
rrkss, what was the boiling range on the second distillation? Thanks.

80% isn't bad on this scal ...
30-1-2010 at 07:51
by: entropy51
Dry HCL Generation
16 hour reactions and half kilo of methylamine? Sounds kind of industrial scale.:)
29-1-2010 at 16:59
by: entropy51
Ammonium Nitrate with recent regulations in mind
Rather than go thru all that, I would just buy some cold packs at the pharmacy. I know you said you ...
29-1-2010 at 13:58
by: entropy51
vacuum pump trouble.
One place I worked the oil pumps would freeze up with gunk in the oil from acid fumes from distillat ...
29-1-2010 at 13:55
by: entropy51
Diethyl Ether Disposal
[quote]I'll make the FeSO4 the way you mentioned. I will get the iron in the correct oxidation state ...
29-1-2010 at 08:05
by: entropy51
sodium bisulfite from sodium bisulfate
[quote]I'll be sure to read up on balancing equations this weekend so in any future posts I can incl ...
29-1-2010 at 07:35
by: entropy51
Low-Pressure Gas @ home
Some of the older chemistry books, especially the ones describing lecture demonstration experiments, ...
29-1-2010 at 07:24
by: entropy51
Diethyl Ether Disposal
[rquote=170652&tid=13333&author=rrkss]What would be a safe easy way to dispose of some old u ...
29-1-2010 at 06:57
by: entropy51
vacuum pump trouble.
If not Teflon, I don't think it will handle what you are throwing at it. If it's not ruined you sho ...
29-1-2010 at 06:42
by: entropy51
Suspicious company
[rquote=170635&tid=2131&author=agorot]Just tonight I bought some H2SO4 from walmart in the f ...
28-1-2010 at 17:59
by: entropy51
Column Chromatography(liquid) Noob
You might want to look at the chapter on chromatography in the book of projects for the amateur scie ...
28-1-2010 at 16:57
by: entropy51
Low-Pressure Gas @ home
[rquote=170607&tid=13327&author=starman]Be interesting to see whether anyone could think up ...
28-1-2010 at 15:58
by: entropy51
Lab Table Top?
My benches are wooden. I work over plastic or stainless steel trays to catch spills when pouring.
...
28-1-2010 at 15:45
by: entropy51
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