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New chemistry forum for Hive Bees It's nice to see old names again. I miss leu, hope he's OK. Almost 9 months since Nicodem logged in. ... |
9-12-2019 at 18:01 by: S.C. Wack |
Any method to convert potassium dichromate to ammonium dichromate? That's odd, calcium chlorate/chloride seems to work OK for that. But anyways if you're going to remo ... |
8-12-2019 at 19:36 by: S.C. Wack |
Legality discourse split from "4-Allylcatechol Methylenation" Actually the phrase arose from trying to find a way to say pre-woelen staff, without throwing them u ... |
30-11-2019 at 13:20 by: S.C. Wack |
Legality discourse split from "4-Allylcatechol Methylenation" s_s is demonstrating impulse control. Newer members here may not be aware that this has never been a ... |
29-11-2019 at 14:02 by: S.C. Wack |
Do u guys make glacial acetic acid from 5% vinegar? USA vinegar leaves a yucky residue when distilled to dryness or is neutralized and evaporated. A sti ... |
29-11-2019 at 08:41 by: S.C. Wack |
Azeotropic esterifications Chemistry existed before videos. https://www.sciencemadness.org/whisper/viewthread.php?tid=10937 |
28-11-2019 at 08:36 by: S.C. Wack |
Do u guys make glacial acetic acid from 5% vinegar? Vinegar is not the same thing worldwide. Vinegar may (USA) or may not have a certain legal definitio ... |
28-11-2019 at 08:30 by: S.C. Wack |
Do u guys make glacial acetic acid from 5% vinegar? The plan may work in some countries but not with vinegar in the USA among others. |
28-11-2019 at 06:27 by: S.C. Wack |
Do u guys make glacial acetic acid from 5% vinegar? Everyone has missed the never before seen flaw in this brilliant, unheard of plan. |
27-11-2019 at 20:37 by: S.C. Wack |
1-chloro-2-propanone (chloroacetone) It appears that the making of chalk for chalkboards as it was in my youth is a lost art unknown to t ... |
25-11-2019 at 18:57 by: S.C. Wack |
latest glassware purchase I'm not sure what if any size standards the Chinese follow with their RBFs. They seem incapable of m ... |
25-11-2019 at 16:37 by: S.C. Wack |
Azeotropic esterifications Maybe the question is what kinds of azeotropes may form in a mixture of benzene, ethanol, water, and ... |
24-11-2019 at 10:18 by: S.C. Wack |
How strict are you about using distilled water vs nondistilled/faucet water in your reactions? pH can also be an issue with city water...I installed home RO. We use a big RO system at work. |
21-11-2019 at 19:11 by: S.C. Wack |
Suggestions for glass joint-grease that won't get stuck after vacuum distillations? Dow is not expensive at all compared to Krytox and Apiezon greases, but it has an officially short s ... |
21-11-2019 at 19:00 by: S.C. Wack |
Removal of aldehyde from alcohol Did you dry before evaporating? Maybe it's just a little wet. |
21-11-2019 at 18:50 by: S.C. Wack |
Hydrogenation of cinnamic aldehyde NaBH4 is the preferred way to make Pd catalysts. And Pt, and Ni...but in this case...Pd. |
20-11-2019 at 18:15 by: S.C. Wack |
Do NH4OH and S React? [rquote=626459&tid=154452&author=draculic acid69]so yes but I think you might need some etha ... |
20-11-2019 at 04:03 by: S.C. Wack |
Do NH4OH and S React? The real question is, does KClO3 dissolve in ammonia...I'm not sure I want to test this. Obviously t ... |
19-11-2019 at 18:35 by: S.C. Wack |
Ammonium formate from Ammonium chloride [rquote=626360&tid=154078&author=mackolol]I think that just bubbling ammonia through formic ... |
17-11-2019 at 15:00 by: S.C. Wack |
The moment (or moments) that made you realize you had a passion for chemistry [rquote=625788&tid=81070&author=Pyro_cat]At a very early age I remember being fascinated by ... |
10-11-2019 at 15:44 by: S.C. Wack |
pet ether/n-hexane from gasoline/petrol You omit the KMnO4 then say it doesn't work? Distillation of gasoline is organic chemistry? If there ... |
10-11-2019 at 15:11 by: S.C. Wack |
vacuum distillation You can refuse to consider mixing in a water chiller now that I've mentioned it. |
7-11-2019 at 17:58 by: S.C. Wack |
How to verify/identify sodium azide? [rquote=625414&tid=154258&author=Deathunter88]Why don't you just buy reagent grade sodium az ... |
2-11-2019 at 13:52 by: S.C. Wack |
Mercury/HNO3 incident Mercury on copper such as a US penny tends to be obvious. Zn or Al should be fine but Mg and Sn are ... |
2-11-2019 at 07:56 by: S.C. Wack |
Mercury/HNO3 incident You realize of course bases tend to precipitate mercury salts...BTW sulfide, oxide, and other Hg sal ... |
2-11-2019 at 06:32 by: S.C. Wack |
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