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Chemistry of Terephthalic acid
I agree, I could find only high temperature / high pressure methods for transesterification.
This ... |
24-4-2016 at 07:42
by: Pumukli |
Chemistry of Terephthalic acid
Yesterday evening I filtered the precipitate from the PET-slices - methanol mixture becasue it was h ... |
22-4-2016 at 01:53
by: Pumukli |
Nitromethane, nitroethane, nitropropane synthesis via industrial route
Melgar,
Dr. Hass and his students in 1930 or so who first run this process succesfully only heate ... |
18-4-2016 at 06:57
by: Pumukli |
Chemistry of Terephthalic acid
I can't check the melting point (or just could provide a crude estimate of it) because I don't have ... |
18-4-2016 at 06:24
by: Pumukli |
dimethylation procedures & reagent choice
Chemrox,
At the weekend I came across a few di- and mono-methylating processes while I was search ... |
18-4-2016 at 06:04
by: Pumukli |
Chemistry of Terephthalic acid
Crystals of methanol?
My methanol does not have crystals, it is just the simple, free-flowing liq ... |
18-4-2016 at 02:46
by: Pumukli |
Chemistry of Terephthalic acid
The original state, right after I closed the flask two days ago.
[file]49989[/file]
Now, afte ... |
17-4-2016 at 03:36
by: Pumukli |
Nitromethane, nitroethane, nitropropane synthesis via industrial route
PHILOU Zrealone may be right.
Here's how Konovalov summarized his diverse findings regarding nitrat ... |
17-4-2016 at 02:42
by: Pumukli |
Chemistry of Terephthalic acid
After 24 hours I can say that something is going on.
The methanol solution has small, white parti ... |
16-4-2016 at 09:49
by: Pumukli |
Chemistry of Terephthalic acid
I put 24.4g PET-slices and 2.4g NaOH (lentil-like half spheres) into a 250 ml FBF. Then I realized t ... |
15-4-2016 at 07:58
by: Pumukli |
Chemistry of Terephthalic acid
Is the IPA smell lost? Strange. Because it has a strong, characteristic odor.
Although there is a ... |
15-4-2016 at 02:55
by: Pumukli |
Chemistry of Terephthalic acid
Maybe the alcoholic solution can much better "wet" the otherwise hydrofobic PET surface than the sim ... |
2-4-2016 at 10:59
by: Pumukli |
Dimethoate
Are you talking about pure dimethoate or a pesticide with roughly 40% dimethoate content? In the lat ... |
2-4-2016 at 10:49
by: Pumukli |
Ega chemie
Isatoic anhydride came to my mind as well. But who would use "anthranilic acid anhydride" as a synon ... |
2-4-2016 at 09:21
by: Pumukli |
Ega chemie
Hello,
I've been browsing through a big pile of old chemicals from the eighties and found somethi ... |
2-4-2016 at 07:00
by: Pumukli |
Chemistry of Terephthalic acid
Hats off, Boffis!
It seems that most of the ammonolysis product is the diamide. If you could find ... |
1-4-2016 at 07:04
by: Pumukli |
clemmensen reduction
So this can be used instead of LAH?
No. What you draw is pirrolidine and not pirrole. Pirrole is ... |
28-3-2016 at 03:51
by: Pumukli |
benzidine
Not to mention, that benzidine is insanely overpriced as a chemical. At least I found 2-3x prices o ... |
26-3-2016 at 05:04
by: Pumukli |
Are there any soft drink preservatives to protect against spoilage that are non acidic?
As far as I know they are either acids (acetic acid, lactic acid, propionic acid, salicylic acid) or ... |
20-3-2016 at 22:52
by: Pumukli |
Fridge pump for refrigeration
Thanks S.C.Wack!
So it seems doable. Now I have to look up refrigerant temp/pressure/boiling poin ... |
14-3-2016 at 00:29
by: Pumukli |
Fridge pump for refrigeration
Yes, it is fridge pump question, but it deals with the ability to refrigerate rather than making va ... |
13-3-2016 at 12:03
by: Pumukli |
Methanol synthesis
Earlier today I read an article about distilling wood. The yield regarding methanol was reportedly v ... |
13-3-2016 at 09:38
by: Pumukli |
electrochem reductionof org halides
As I read the article it talks about Pb electrode not Hg, mentioning that Pb was the most effective ... |
12-3-2016 at 00:03
by: Pumukli |
Unknown (for me) reaction help!
Meanwhile I found this reaction described in Organikum. Apparently it is a well-known (and important ... |
11-3-2016 at 10:37
by: Pumukli |
Unknown (for me) reaction help!
Some SM members are efficiently promoting the prepchem website, so efficiently that finally I also r ... |
11-3-2016 at 05:53
by: Pumukli |
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