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Catalyst preparation dumb question
Do you have a Parr hydrogenator?
Hydrogenations are a quite complex procedure, you should have a bi ...
30-1-2023 at 04:53
by: Mateo_swe
Preparation of pyrrolidine via decarboxylation of l-proline
Added a paper "Organocatalytic decarboxylation of amino acids as a route to biobased amines and amid ...
29-1-2023 at 12:57
by: Mateo_swe
Pepper to Piperine problem
If the end goal of piperine extraction is to make piperonal maybe another route is easier.
De-methy ...
28-1-2023 at 12:16
by: Mateo_swe
Confusion on SO3 Synthesis
Have you read LenĀ“s book "Small-scale Synthesis Of Laboratory Reagents"?
Chapter 20 - Sulfur Triox ...
26-1-2023 at 06:21
by: Mateo_swe
Preparation of Thalidomide
Very nice!

OK, you used urea and not thiourea.
Thiourea is said to give better yields, if you ca ...
25-1-2023 at 12:54
by: Mateo_swe
Phthalic anhydride by thermal decomposition of phthalic acid (Photo-essay)
Nicely done and a excellent write-up.
23-1-2023 at 14:00
by: Mateo_swe
Preparation of Thalidomide
Very nicely done, SplendidAcylation, good work!

And a good writeup as well with repeated experime ...
23-1-2023 at 12:50
by: Mateo_swe
Idiocy in action; don't be me
Sorry for your loss, arkoma.

Rainwater, holy shit that looks bad.
You are so lucky you are alive ...
23-1-2023 at 05:52
by: Mateo_swe
Suitable manometer
A common vacuum gauge.
One of these
[img]https://i.ebayimg.com/thumbs/images/g/S1QAAOSwdhdcQjRf/s- ...
23-1-2023 at 05:34
by: Mateo_swe
Replacement for acetonitrile in oxone oxidation
Just buy acetonitrile, you are in Europe.
If you cant get it ask one of the sellers in the "Reagent ...
23-1-2023 at 05:22
by: Mateo_swe
pharma / food grade ethanol - distillation using Hempel column
Slower fermentation at a slightly lower temp probably reduce impurities as you say, and slower disti ...
19-1-2023 at 05:36
by: Mateo_swe
Distilled some EtOH denatured with Bitrix, and the distillate smells funny
Im more intrested in the contaminating stuff than water content.
Its not so hard to remove water up ...
19-1-2023 at 05:01
by: Mateo_swe
Distilled some EtOH denatured with Bitrix, and the distillate smells funny
Wow, 99.9% and 99.95% ethanol.
Getting that % from fermentation and distillation is impressive and ...
17-1-2023 at 10:09
by: Mateo_swe
pharma / food grade ethanol - distillation using Hempel column
Excellent results, nicely done.

Time to buy some sugar, turbo-yeast and fire up the old distiller ...
17-1-2023 at 09:45
by: Mateo_swe
Anyone experiment with paramagnetic liquids?
Not what you asked but a bit related and quite cool.

If one take a little bit of ferrofluid and p ...
17-1-2023 at 06:44
by: Mateo_swe
Distilled some EtOH denatured with Bitrix, and the distillate smells funny
Thats nice tnx, i look into it.

I just looked at various etanol products but all contain what i s ...
17-1-2023 at 06:16
by: Mateo_swe
Distilled some EtOH denatured with Bitrix, and the distillate smells funny
OK
If i want some pure ethanol there is a product avaliable that contains this according to the saf ...
17-1-2023 at 05:28
by: Mateo_swe
Ion exchange resin -> membrane
Ion exchange membranes dont have to be so expensive, there are many different ones and some are not ...
17-1-2023 at 03:39
by: Mateo_swe
Distilled some EtOH denatured with Bitrix, and the distillate smells funny
[rquote=680393&tid=159226&author=blogfast25][rquote=680386&tid=159226&author=unionis ...
17-1-2023 at 03:11
by: Mateo_swe
Sulfur/Selenium/Tellurium High-K dielectric
You are probably correct, but will the mixed compound still have the high dielectric K-factor that B ...
2-1-2023 at 14:42
by: Mateo_swe
hho electrolysis plate configuration
Junk_Enginerd, you said you used at maximum 1500W and the flame produced by that was laughably small ...
2-1-2023 at 14:26
by: Mateo_swe
Sulfur/Selenium/Tellurium High-K dielectric
Onyxmet has Barium Titanate if a smaller amount is needed, but its quite expensive.
I think for mak ...
2-1-2023 at 12:22
by: Mateo_swe
Other acids than oxyacids
Honey, have you seen my wedding ring?
Sorry babe, had to use it for the new synthesis challenge but ...
2-1-2023 at 10:49
by: Mateo_swe
Nitric acid skin burn
Looks painful, i hope you heal soon.

HNO3 for warts?
I have seen mini flasks of glacial acetic a ...
2-1-2023 at 10:17
by: Mateo_swe
Sources of Diethylene glycol, Triethylene glycol, and 1,2,4-Butanetriol
Hendi liquid fuel is a similar product that says 100% DEG.
30-12-2022 at 15:12
by: Mateo_swe
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