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Preparation of Sodium Bisulphite n stuff You need "a lot" of heat. See the thread on "ionic nitrites." I would make sure that your nitrit ...	21-6-2016 at 11:44 by: Magpie
Preparation of Sodium Bisulphite n stuff Thanks for posting this synthesis of SO2. I haven't needed one yet but might in the future. Sodi ...	21-6-2016 at 10:34 by: Magpie
Unable to access site from the main page Yes, I've been having similar problems. I usually use a link from "most visited" but this was not w ...	20-6-2016 at 21:52 by: Magpie
"It's time to start hoarding before TSCA kicks in" This is the title of two letters submitted to the editor of today's [i]Wall Street Journal[/i]. Her ...	16-6-2016 at 18:03 by: Magpie
Preparation of elemental phosphorus Here's a good thread to review ("Carbon Arc Furnace"): http://www.sciencemadness.org/talk/viewthr ...	16-6-2016 at 08:59 by: Magpie
Preparation of elemental phosphorus The Landis design does not show any kind of disk for the crucible electrode. I'm not sure one is ne ...	13-6-2016 at 18:09 by: Magpie
Preparation of elemental phosphorus The Landis water seal for the carbon electrode might be a good option. You could install a 50a br ...	13-6-2016 at 13:22 by: Magpie
What to do with chlorine gas ? [rquote=451741&tid=66219&author=NEMO-Chemistry] So is it worth getting a mask when the wors ...	13-6-2016 at 13:08 by: Magpie
Preparation of elemental phosphorus Sounds good. I don't recall any previous use of an arc furnace. This will be a very interesting ex ...	11-6-2016 at 21:18 by: Magpie
Preparation of elemental phosphorus [rquote=451527&tid=65&author=Magpie] I assume you are going to want to reuse the carbon cru ...	11-6-2016 at 16:05 by: Magpie
Preparation of elemental phosphorus @careysub: Yes, I think the 5-gallon size would be big enough. Minimizing the internal volume woul ...	11-6-2016 at 12:47 by: Magpie
Preparation of elemental phosphorus I think your basic idea is sound. As you say the challenge is to develop a [i]safe[/i] and [i]econ ...	11-6-2016 at 09:13 by: Magpie
preparation of congo red @aga: I recommend that you follow the Kline procedure from the [i]Journal of Chemical Education[/ ...	7-6-2016 at 17:57 by: Magpie
preparation of congo red The purification procedure from [i]Fundamentals Processes of Dye Chemistry [/i]by Fierz-David & ...	7-6-2016 at 12:55 by: Magpie
preparation of congo red Thanks for that information SC. I don't know that there is any propensity for the diazonium compo ...	5-6-2016 at 13:35 by: Magpie
preparation of congo red [rquote=450782&tid=66391&author=gdflp] Why was your naphthionate solution so dark, it appear ...	4-6-2016 at 13:02 by: Magpie
preparation of congo red This is an update on my attempted purification of homemade congo red. The method I am using is that ...	4-6-2016 at 10:17 by: Magpie
Chemical Tanker Seen on Highway I saw a new placard on the highway yesterday on a ss tanker: [file]51212[/file] This is for h ...	3-6-2016 at 08:46 by: Magpie
preparation of congo red Thanks to all. I'm still working on the purification. The ethanol extract has just reached dryness ...	2-6-2016 at 17:52 by: Magpie
preparation of congo red [b]Introduction[/b] Congo Red is an azo dye formed from the coupling of benzidine HCl and Na napthi ...	31-5-2016 at 14:19 by: Magpie
Sipohn flow rate [rquote=450185&tid=66363&author=blogfast25] $$Q_v \approx \frac{\pi}{4}D^2\sqrt{2gy}$$ ...	28-5-2016 at 08:40 by: Magpie
preparation of naphthionic acid Nice work gdflp - the pictures are familiar. When I first weighed the naphthionic acid filter ...	27-5-2016 at 14:54 by: Magpie
preparation of naphthionic acid The α-nitronaphthalene was homemade (ref 2).	27-5-2016 at 13:01 by: Magpie
preparation of naphthionic acid Thanks aga. Yes, this will be used to make congo red, an acid-base indicator that changes from blue ...	27-5-2016 at 12:46 by: Magpie
preparation of naphthionic acid [b]Introduction[/b] Napthionic acid can be prepared from α-nitronaphthalene using the Piria reacti ...	27-5-2016 at 12:23 by: Magpie
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