| Search |
| [Next Page] |
Is my boiling flask OK?
I think bumping could be prevented by controlling the temperature of the heating media. For this rea ... |
20-10-2021 at 02:37
by: teodor |
Concentrating hydrobromic acid higher than the azeotrope?
[rquote=666286&tid=158010&author=S.C. Wack][rquote=666253&tid=158010&author=woelen]I ... |
17-10-2021 at 01:47
by: teodor |
Safety measures for working with NO2
If you prefer you can use also an ammonia solution. But when I see brown gas leaking into my lab I a ... |
16-10-2021 at 10:34
by: teodor |
Safety measures for working with NO2
It is better not to bubble NO2 but just allow it to pass over water. It very eagerly reacts with wat ... |
16-10-2021 at 06:29
by: teodor |
Glassware cleaning routine
I just have the impression that the Dimroth condenser is more effective than Liebig. I had some issu ... |
16-10-2021 at 01:34
by: teodor |
Concentrating hydrobromic acid higher than the azeotrope?
I can't imagine any benefit of 65% HBr over 47% HBr. I know that 38% HCl has benefits e.g. in alkyl ... |
16-10-2021 at 01:16
by: teodor |
Glassware cleaning routine
[rquote=666204&tid=157971&author=Herr Haber]An Alhin condenser would be a much better choice ... |
15-10-2021 at 02:21
by: teodor |
Glassware cleaning routine
ManyInterests, you don't need to return 20 ml to the flask during the distillation. Just keep it sep ... |
13-10-2021 at 12:53
by: teodor |
Sodium chloride and sodium nitrate seperation.
You can try to distill the mixture of HNO3 and HCl with Pb(NO3)2. I suppose it will precipitate chlo ... |
13-10-2021 at 08:16
by: teodor |
The reaction of chlorosulfonic acid with different metals
I didn't observe the passivation effect. It slowly eats the metals, even Cu, forming not a thin invi ... |
13-10-2021 at 05:26
by: teodor |
Ohaus again (balances and hotplates)
Sulaiman,
I used double-distilled water (the second time with permanganate) to check my volumetri ... |
13-10-2021 at 03:14
by: teodor |
Glassware cleaning routine
ManyInterests, I don't recommend adding components to the distilling flask during the process of mak ... |
13-10-2021 at 02:53
by: teodor |
Glassware cleaning routine
[rquote=666103&tid=157971&author=ManyInterests]
I don't have any phosphates or dichromates, ... |
12-10-2021 at 10:33
by: teodor |
Ohaus again (balances and hotplates)
Absolute weight is changing not only with altitude but with latitude also. But practically, we rarel ... |
12-10-2021 at 09:32
by: teodor |
Small scale production of H2SO4 in the amateur lab
Last time I bought 30% oleum (you probably can guess where) at the same price per kg as chlorosulfon ... |
12-10-2021 at 02:55
by: teodor |
Small scale production of H2SO4 in the amateur lab
I think the reason is that water is not quite "free" in 96-98% H2SO4. For example, according to http ... |
10-10-2021 at 23:13
by: teodor |
The reaction of chlorosulfonic acid with different metals
This is just an illustration of the difference between the reaction of cobalt metal with 6M H2SO4 in ... |
10-10-2021 at 10:04
by: teodor |
Small scale production of H2SO4 in the amateur lab
I tried to prepare ~100% H2SO4 by mixing 2.4 ml HClSO3 and 6.5 ml 96% H2SO4. Eventually, it doesn't ... |
10-10-2021 at 09:24
by: teodor |
Ohaus again (balances and hotplates)
Check this: https://www.labmakelaar.com/product-category/all/saleable/balansen/?orderby=price
It is ... |
9-10-2021 at 09:16
by: teodor |
Bugger YouTube
[rquote=665977&tid=157989&author=wg48temp9]
Perhaps youtube likes cute lambs more than chem ... |
8-10-2021 at 05:49
by: teodor |
Ohaus again (balances and hotplates)
[rquote=665870&tid=157984&author=Keras]
TBH, I'm super reluctant to buy Chinese made stuff. ... |
8-10-2021 at 01:29
by: teodor |
Bugger YouTube
So, how I can make my own mirror of lbry or odysee, Fulmen?
Edit: I suppose it is not by any mean ... |
7-10-2021 at 09:48
by: teodor |
Bugger YouTube
[rquote=665949&tid=157989&author=Texium]DavidJR attempted to do exactly what you described a ... |
7-10-2021 at 06:33
by: teodor |
Bugger YouTube
It is very bad. But probably we should understand that youtube is not a kind of social achievement, ... |
7-10-2021 at 05:46
by: teodor |
Report on trying to make lithium dichromate
I think the way to solve the problem of "crust" is to add some volatile organic compound which will ... |
7-10-2021 at 03:33
by: teodor |
| [Next Page] |
