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Destroying N-methylpyridinium Chloride with Fenton's Reagent ?
My best guess so far was to neutralize the rxn. mixture with NaOH - turning the methylpyridinium hal ... |
26-1-2020 at 08:25
by: nimgoldman |
Destroying N-methylpyridinium Chloride with Fenton's Reagent ?
I plan to use pyridine and pyridine hydrochloride (Py.HCl) in O-demethylation, e.g.:
[b]R-O-CH3 + ... |
25-1-2020 at 19:31
by: nimgoldman |
Blanc Chloromethylation - Removing BCME from Product
There was probably some standard way how they dealt with BCME in the industry, when Blanc chlorometh ... |
23-1-2020 at 15:35
by: nimgoldman |
Blanc Chloromethylation - Removing BCME from Product
Didn't you mean *sensitive* ?
Of course I plan to fractionally distill the chloromethyl intermedi ... |
23-1-2020 at 13:12
by: nimgoldman |
Extraction of diethyl ether — impurities?
Wouldn't it be possible to remove acetaldehyde via its bisulfite adduct?
For better fractionation ... |
22-1-2020 at 13:07
by: nimgoldman |
Blanc Chloromethylation - Removing BCME from Product
[rquote=629813&tid=154755&author=Tsjerk]Is there really no alkaline step downstream of your ... |
22-1-2020 at 11:44
by: nimgoldman |
Blanc Chloromethylation - Removing BCME from Product
It is well known that Blanc chloromethylation produces a highly carcinogenic bis(chloromethyl) ether ... |
22-1-2020 at 06:09
by: nimgoldman |
Recovering Silver from Silver Bromide
[rquote=629790&tid=102555&author=clearly_not_atara]Dithionite huh? Nice that someone finally ... |
21-1-2020 at 17:29
by: nimgoldman |
Recovering Silver from Silver Bromide
This thread popped up for me in Google search when I researched more about this, so I will just add ... |
21-1-2020 at 12:07
by: nimgoldman |
Refreshing old Sodium Dithionite
Alright, I will just repack it.
I found the 20% sodium dithionite soln. is only slightly acidic a ... |
21-1-2020 at 11:53
by: nimgoldman |
Refreshing old Sodium Dithionite
I have about 1.5 year old sample of commercial sodium dithionite powder.
I stored it in plastic b ... |
20-1-2020 at 18:14
by: nimgoldman |
Copper disposal issues
There is usually only minute amount of copper(II) to remove (I use it as a catalyst in gram amounts) ... |
9-12-2019 at 19:50
by: nimgoldman |
Copper disposal issues
Yes I can do that. I've used sodium sulfide with success for mercury waste cleanup.
I've read so ... |
9-12-2019 at 17:40
by: nimgoldman |
Copper disposal issues
Sorry i meant basic. The waste solution was about pH 10 and no precipition took place by adding Na2C ... |
9-12-2019 at 15:57
by: nimgoldman |
Copper disposal issues
I have a huge amounts of liquid copper waste but the disposal methods don't work for me.
Some of ... |
9-12-2019 at 15:37
by: nimgoldman |
Removal of aldehyde from alcohol
Yes - remove alcohol by distillation, mix with sat. aq. bisulfite soln. (adduct will form), filter, ... |
20-11-2019 at 09:40
by: nimgoldman |
Ammonium formate from Ammonium chloride
You can most likely get Baker's ammonia (ammonium bicarbonate), listed as E503 on foodstuffs. It's O ... |
20-11-2019 at 09:32
by: nimgoldman |
Blacklight as a light source for chlorination?
Thanks, I will probably first try the reaction at microscale with the cheap UV-C bulb and see.
Pr ... |
20-11-2019 at 09:11
by: nimgoldman |
Blacklight as a light source for chlorination?
I am looking for an UV light source for small scale chlorinations (making benzyl chloride from tolue ... |
20-11-2019 at 02:36
by: nimgoldman |
Preparing "Neutral" Copper(II) Nitrate Solution for Aldehyde Synthesis
[rquote=625573&tid=154275&author=Pumukli]Nimgoldman, do you have a published procedure with ... |
6-11-2019 at 11:54
by: nimgoldman |
Preparing "Neutral" Copper(II) Nitrate Solution for Aldehyde Synthesis
[rquote=625544&tid=154275&author=Sulaiman]copper(II) nitrate decomposes at 256[sup]o[/sup]C ... |
5-11-2019 at 22:01
by: nimgoldman |
Preparing "Neutral" Copper(II) Nitrate Solution for Aldehyde Synthesis
[rquote=625539&tid=154275&author=elementcollector1]Crystallize the nitrate out at low temper ... |
5-11-2019 at 18:43
by: nimgoldman |
Preparing "Neutral" Copper(II) Nitrate Solution for Aldehyde Synthesis
I want to prepare a copper(II) nitrate solution for the synthesis of an aldehyde, e.g. benzaldehyde ... |
5-11-2019 at 16:38
by: nimgoldman |
My copper waste solution does not want to clear up
The goal is just to reduce the amount of waste and make the liquid safe enough to be poured down the ... |
9-9-2019 at 17:29
by: nimgoldman |
My copper waste solution does not want to clear up
I have an old bottle labeled "Cu waste". It contains dissolved copper from my early experiments, nam ... |
1-9-2019 at 22:05
by: nimgoldman |
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