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Everyday Chemistry
I have distilled methyl salicylate. It's a good start of the new year - the first batch of the crude ... |
1-1-2021 at 07:04
by: teodor |
Looking over the border: EU-Regulations
The most important impact which I see is the new limitation of rights to do scientific experiments / ... |
31-12-2020 at 04:33
by: teodor |
Ika or Corning?
@valeg96
This refined oil of alkanes is still flammable and can ignite on some conditions. If you c ... |
30-12-2020 at 11:57
by: teodor |
Ika or Corning?
The exact composition still plays some role because I must be sure the lowest boiling point of any h ... |
30-12-2020 at 11:07
by: teodor |
Ika or Corning?
Don't blame yourself, @valeg96, because every novice can read in Vogel's book (as well as in many ot ... |
30-12-2020 at 09:45
by: teodor |
Looking over the border: EU-Regulations
What I don't see and what I expect to see in the documents is reference to some analysis how this ba ... |
30-12-2020 at 04:21
by: teodor |
Ika or Corning?
[rquote=652230&tid=156814&author=valeg96]Olive oil has a very low smoke point, and is not go ... |
30-12-2020 at 01:41
by: teodor |
Ika or Corning?
@valeg96 I tried only olive oil. It is unpractical to heat it to anything more than 100C in a living ... |
30-12-2020 at 00:20
by: teodor |
Ika or Corning?
@valeg96 I didn't get much success with water bath + ethanol, the heating is not enough to get a nor ... |
29-12-2020 at 11:27
by: teodor |
Ika or Corning?
Is hotplate stirrer with a water bath is better than just magnetic stirrer + (heating mantle or heat ... |
29-12-2020 at 09:43
by: teodor |
Everyday Chemistry
I distilled dibutyl ehter. I did it in a claisen flasks with a fractionating arm - not the best glas ... |
27-12-2020 at 06:13
by: teodor |
Is it normal to get low yields all the time, or am I a bad organic chemist?
From Vogel's textbook:
"
2P + 10ROH + 5Br 2 — • 2H 3 P0 4 + lORBr + 2H 2 0
The reaction is ... |
27-12-2020 at 04:46
by: teodor |
Is it normal to get low yields all the time, or am I a bad organic chemist?
@Cou, I think what is most important is to understand why the yield is low in each particular case. ... |
26-12-2020 at 07:32
by: teodor |
The Short Questions Thread (4)
[rquote=651808&tid=25055&author=Johnny Cappone]
1) Is it possible to concentrate a diluted ... |
24-12-2020 at 09:16
by: teodor |
Everyday Chemistry
I am 4 days experimenting with making di-n-butyl ether, preparation III,57 by Vogel. Methods of sepa ... |
24-12-2020 at 04:18
by: teodor |
Taking care of SO2 and NO2
[rquote=651626&tid=156764&author=Zincmish]
In those first attemps I used a solution of conc ... |
19-12-2020 at 05:25
by: teodor |
Taking care of SO2 and NO2
If you concern about safety I would spit the process into 2 parts:
1. Preparing SO2 solution in w ... |
18-12-2020 at 10:07
by: teodor |
Does anyone know sodium selenite LD?
"minimum LD was 3 mg Se/kg" - from [url=https://www.sciencedirect.com/science/article/pii/S0946672X1 ... |
12-12-2020 at 04:26
by: teodor |
Loudwolf “Sodium Thiosulfate, anhydrous”: WHAT IS IT?!
I won't be sure in a product of manufacturer who doesn't know the formula of the product. Sodium thi ... |
12-12-2020 at 03:22
by: teodor |
Reaction dynamics of thiosulfate ion
I tried to look into the article I posted here but the link is not working anymore. But eventually I ... |
12-12-2020 at 03:17
by: teodor |
The insanity that is OHS
In this regard I can recall only this old video: https://youtu.be/Y9TviIuXPSE?t=907 |
11-12-2020 at 06:52
by: teodor |
The insanity that is OHS
Are those people from occupational health and safety ever studied chemistry in their life? How could ... |
11-12-2020 at 00:37
by: teodor |
canm't find ervery day chem thread
Did you that by refluxing with acetic acid & sulfuric acid method @arkoma? I did the synthesis o ... |
10-12-2020 at 03:00
by: teodor |
I need help finding the very bane of roaches existence...
[rquote=650917&tid=156706&author=B(a)P][rquote=650911&tid=156706&author=karlos³]I s ... |
9-12-2020 at 13:18
by: teodor |
I need help finding the very bane of roaches existence...
[rquote=650911&tid=156706&author=karlos³]I second Tsjerk's wonderful DDT(analogue) synthesi ... |
9-12-2020 at 13:12
by: teodor |
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