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Acetic anhydride preparation
I think it is probably something more irritating than toxic, but yes, it requires some well-tested s ... |
23-10-2020 at 05:57
by: teodor |
Acetic anhydride preparation
@clearly_not_atara Why you didn't mention the ketene route which is also should be effective ? |
23-10-2020 at 05:50
by: teodor |
How to purify calcium acetate crystals
Probably you can join our discussion in this thread: https://www.sciencemadness.org/whisper/viewthre ... |
23-10-2020 at 04:38
by: teodor |
"Fixing" some sodium acetate after a poor dehydration attempt.
@SuperOxide you've got a nice label! I still use hand-written marks with felt-pen, shame on me. |
23-10-2020 at 03:49
by: teodor |
Amateur chemistry from both sides of the table
[rquote=647153&tid=156366&author=Fyndium]On the other hand, when I have said people that I h ... |
23-10-2020 at 02:32
by: teodor |
Acetic anhydride preparation
[rquote=647150&tid=9&author=VeritasC&E]I've found a source at which 98% acetyl chloride ... |
23-10-2020 at 02:02
by: teodor |
Amateur chemistry from both sides of the table
[rquote=647126&tid=156366&author=Ubya]
[quote]
Possible having limit in storage of hazard ... |
22-10-2020 at 12:40
by: teodor |
Acetic anhydride preparation
[rquote=647117&tid=9&author=VeritasC&E]
Would anyone who has gone through the pain of r ... |
22-10-2020 at 12:10
by: teodor |
Amateur chemistry from both sides of the table
[rquote=647115&tid=156366&author=Fyndium]General assumption from officials, professors and o ... |
22-10-2020 at 11:05
by: teodor |
Amateur chemistry from both sides of the table
[rquote=647110&tid=156366&author=Ubya]
i think chemist1243 was asking a discussion more abo ... |
22-10-2020 at 09:19
by: teodor |
Amateur chemistry from both sides of the table
[rquote=647066&tid=156366&author=chemist1243]
Remember to be polite and not get political.
... |
22-10-2020 at 09:03
by: teodor |
How to recrystallize high solubility substances?
Also a common ion effect can be widely used for many ionic compounds.
On the other hand, there co ... |
22-10-2020 at 03:37
by: teodor |
Latest chemical order?
75 g Cd metal and 80 g Bi metal - for study chemistry of these metals as well as cation samples for ... |
21-10-2020 at 07:30
by: teodor |
Qualitative determination of lead in tap water
"Add 5 mL 0.1N iodine solution to avoid losses of volatile organo-lead compounds during handling and ... |
19-10-2020 at 13:34
by: teodor |
"Fixing" some sodium acetate after a poor dehydration attempt.
Well, usually this technology could be used: just add the ethanol (85-95%) to a concentrated aqueous ... |
19-10-2020 at 12:05
by: teodor |
Qualitative determination of lead in tap water
"Standard Methods for the Examination of Water, Sewage, and Industrial Wastes" 10th edition 1955.
I ... |
19-10-2020 at 10:43
by: teodor |
Qualitative determination of lead in tap water
AJKOER: I don't quite understand why the solution should be colored if PbI2 is not formed, because P ... |
19-10-2020 at 10:22
by: teodor |
Qualitative determination of lead in tap water
AJKOER: Comment about PbI2 solubility was made by me, not by unionised. But it seams you do mention ... |
19-10-2020 at 09:23
by: teodor |
Qualitative determination of lead in tap water
[rquote=646855&tid=156341&author=AJKOER]One path is to investigate just add KI (or NaI) and ... |
19-10-2020 at 08:09
by: teodor |
Latest chemical order?
[rquote=646822&tid=9890&author=woelen]
- 50 grams of 99.9% zinc phosphide, for easily makin ... |
19-10-2020 at 03:13
by: teodor |
Qualitative determination of lead in tap water
[file]83833[/file]
I didn't try it by myself.
|
18-10-2020 at 23:28
by: teodor |
How do I recrystallize ferric chloride?
Yes, I thought about that. Probably the vacuum pump will go up in my shopping list.
But today I t ... |
18-10-2020 at 03:02
by: teodor |
How do I recrystallize ferric chloride?
I did few experiments trying different organic solvents. I had idea that extraction ability is depen ... |
17-10-2020 at 15:06
by: teodor |
Distinguishing between KCl and NaCl
Last time I used KSb(OH)6 as a reagent, sodium salt is insoluble and potassium is soluble. So, you c ... |
17-10-2020 at 04:34
by: teodor |
Latest chemical order?
1000 g KMnO4 - for synthesis of carboxylic acids, also as a source of hydrated MnO2.
100 g Sn - fo ... |
16-10-2020 at 03:11
by: teodor |
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