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"Broken" thermometre
Sometimes those gaps can be gotten rid of by condensing everything into the bulb with dry ice, or th ...
23-10-2018 at 13:16
by: happyfooddance
Production of pharmaceutical grade (USP, EP, BP, JP) compounds
The U.S.P. publishes individual standards for various different compounds. The specifications vary f ...
20-10-2018 at 11:16
by: happyfooddance
Production of pharmaceutical grade (USP, EP, BP, JP) compounds
There are a lot more aspects to obtaining U.S.P. grade. Even the color of paint on the walls of the ...
20-10-2018 at 10:09
by: happyfooddance
Denatured Ethanol: Mining the Dregs [without explosion]
If you are worried about peroxides, I think the fears may be overblown, but in any case distilling a ...
19-10-2018 at 20:58
by: happyfooddance
Synthesis: Making phenol by catalytically decarboxylating salicylic acid in benzoic acid
I would try to put in paragraph breaks if you can still edit, it would help a lot for readability.
17-10-2018 at 19:30
by: happyfooddance
Spider man
Just rent a cotton candy machine, spiderman making cotton candy is a total winner.
15-10-2018 at 20:47
by: happyfooddance
Solubility of natural resin
[rquote=534647&tid=90578&author=Xrpdguy]
I just cannot dissolve fuckin' resin in any solven ...
13-10-2018 at 07:17
by: happyfooddance
Electrochemistry - (maybe) stupid question
Diffusion and migration are two different things when it comes to electrolysis. Hydrogen doesn't "mi ...
10-10-2018 at 07:10
by: happyfooddance
Electrochemistry - (maybe) stupid question
[rquote=542079&tid=96535&author=DraconicAcid]
Oh, piffle. The fact that H[sup]+[/sup] is m ...
9-10-2018 at 18:22
by: happyfooddance
Electrochemistry - (maybe) stupid question
[rquote=541847&tid=96535&author=MKSStal]Can we make a reaction go by building correct galvan ...
8-10-2018 at 21:53
by: happyfooddance
Mercury Sulfide Being Sold as Medicine for Children
[rquote=541657&tid=95329&author=unionised]"It is only fraud if you claim something will perf ...
7-10-2018 at 13:51
by: happyfooddance
Have organic molecule base in Ethyl acetate, precipitate with tartaric acid in methanol?
The problem you have is that you need to be certain that adding your MeOH/tartaric acid solution to ...
7-10-2018 at 12:36
by: happyfooddance
Mercury Sulfide Being Sold as Medicine for Children
[rquote=541625&tid=95329&author=unionised]
"If you are sick and you start randomly googling ...
7-10-2018 at 12:22
by: happyfooddance
Have organic molecule base in Ethyl acetate, precipitate with tartaric acid in methanol?
Putting it in the freezer will precipitate it in the freebase form, which is pretty stable and also ...
7-10-2018 at 11:53
by: happyfooddance
Mercury Sulfide Being Sold as Medicine for Children
Some of these are reasonable concerns but they miss the point.

First off, anybody buying anything ...
7-10-2018 at 09:54
by: happyfooddance
Recrystalizations - are some fractions more pure?
"Suppose that we heat one kilogram of water from 100 °C (its normal boiling temperature) to 101 °C ...
6-10-2018 at 16:03
by: happyfooddance
Mercury Sulfide Being Sold as Medicine for Children
Went from "Mercury Sulfide Being Sold as Medicine for Children" to "Pigments Being Sold on eBay that ...
6-10-2018 at 14:14
by: happyfooddance
Mercury Sulfide Being Sold as Medicine for Children
Directly from the ebay ad (also from common sense):

"2.The colors may be a little difference for ...
6-10-2018 at 13:09
by: happyfooddance
Mercury Sulfide Being Sold as Medicine for Children
You are pathetically desperate to save face.

My picture shows a moist paste, not a dry powder.
...
6-10-2018 at 12:50
by: happyfooddance
Why some languages write compounds' names with anions first?
[rquote=541128&tid=96037&author=fusso][rquote=541125&tid=96037&author=Metacelsus]
O ...
6-10-2018 at 11:39
by: happyfooddance
Mercury Sulfide Being Sold as Medicine for Children
[rquote=541046&tid=95329&author=unionised][rquote=540915&tid=95329&author=Elrik]
Re ...
6-10-2018 at 03:57
by: happyfooddance
Proper way to use a dessicator
[rquote=540881&tid=95655&author=macckone]Transport into the desiccant and out of the substan ...
6-10-2018 at 01:22
by: happyfooddance
Mercury Sulfide Being Sold as Medicine for Children
[rquote=541024&tid=95329&author=wg48]
The cinnabar I purchased was listed in category:
...
6-10-2018 at 01:09
by: happyfooddance
Recrystalizations - are some fractions more pure?
A lot of times when you hot-filter a boiling solution (saturated or otherwise) just pouring it right ...
5-10-2018 at 23:12
by: happyfooddance
Mercury Sulfide Being Sold as Medicine for Children
[rquote=540948&tid=95329&author=weilawei] Still, this topic belongs in this forum, not detri ...
5-10-2018 at 21:56
by: happyfooddance
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