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Guanidine from dicyanodiamide Attached is a zip file that contains some papers on the conversion of dicyandiamide into guanidine. ...	12-1-2020 at 03:30 by: Boffis
Iso-thiuronium salts type compounds Once again while browsing through old journals I have stumbled across an interesting little gem. The ...	11-1-2020 at 10:34 by: Boffis
bornyl chloride synthesis by addition of HCl gas to alfa pinene Really nice preparation and a good write-up, well done. What was your source of alpha-pinene and doe ...	11-1-2020 at 08:21 by: Boffis
Guanidine from dicyanodiamide @Bezaleel; I have done a lot of work with dicyandiamide and have dozens of papers on its transformat ...	11-1-2020 at 03:15 by: Boffis
Making iron phosphide without elemental phosphorus? Could you use an alumothermic thermite type reaction with anhydrous FePO4? The latter is easily prep ...	4-1-2020 at 07:30 by: Boffis
Preparation of cinnamalacetone Has anyone ever tried this reaction with salicylaldehyde instead of benzaldehyde? There is a paper i ...	2-1-2020 at 12:00 by: Boffis
Golden rain experiment ruined . Did not recrystallise out on cooling Why did you use lead acetate and then add nitric acid? This just adds another layer of unnessecary c ...	1-1-2020 at 07:26 by: Boffis
Golden rain experiment ruined . Did not recrystallise out on cooling How did you measure out the reactants? In other words; what was the molar ratio of the reactants? Le ...	31-12-2019 at 07:44 by: Boffis
Azelaic acid Nice work and an interesting write up. A couple of points that I have found from experience with KMn ...	21-12-2019 at 14:04 by: Boffis
Patience and Rubazonic acid No not because they are pretty! I was trying to prepare the respective amino compounds because, at l ...	18-12-2019 at 13:20 by: Boffis
Patience and Rubazonic acid I haven't yet got round to investigating the salt forming abilities of rubazonic acid but it probabl ...	15-12-2019 at 08:40 by: Boffis
Patience and Rubazonic acid Back in 2016 I was making azo dyes from 4-amino-antipyrine (1-phenyl-2,3-dimethyl-4-amino-pyrazol-5- ...	14-12-2019 at 15:02 by: Boffis
Preparation of cinnamalacetone The red 4-(N,N-dimethylamine)benzalacetone (photo above) is deep garnet when recrystallised but form ...	14-12-2019 at 01:49 by: Boffis
Ammonium Chromate [(NH4)2CrO4] PREPARATION One other thing to bear in mind is that soluble chromates have a terrible tendency to form mixed cry ...	12-12-2019 at 06:04 by: Boffis
Allyl Bromide Preparation Nice write up CycloKnight! I have often contemplated carrying out this preparation but was put off b ...	10-12-2019 at 14:05 by: Boffis
Attempts to make manganese sulphide OK Lion850 some possible answers bearing in mind that manganese 2+ sulphide is rather unstable in wa ...	9-12-2019 at 14:30 by: Boffis
Energetic precipitate from the reaction of ascorbic acid/Cu(II) and sodium nitrite I've done a bit more research and I now see that the stoichiometry is 1 mol. ascorbic acid and 2 mol ...	9-12-2019 at 14:08 by: Boffis
Any method to convert potassium dichromate to ammonium dichromate? @AJKOER, While I haven't tried this simple direct method on these reactions I did recently try this ...	8-12-2019 at 15:41 by: Boffis
Any method to convert potassium dichromate to ammonium dichromate? Somewhere, in one of my very old note books I have a detailed "as done" write-up but I can't find it ...	8-12-2019 at 04:52 by: Boffis
Diethylamine and m-Toluic acid from DEET Hi Sigmatropic, thank you very much for your comments. As for etching of the glassware by the hyd ...	7-12-2019 at 14:43 by: Boffis
Any method to convert potassium dichromate to ammonium dichromate? [rquote=627575&tid=154538&author=vibbzlab]I've got barium chloride in excess. So I first mak ...	7-12-2019 at 10:53 by: Boffis
Any method to convert potassium dichromate to ammonium dichromate? The problem is ammonium chromate solution is rather unstable and evaporating it down may be difficul ...	7-12-2019 at 05:21 by: Boffis
Wrong dichromate received! @Lion850 sodium dichromate is a little more soluble than the potassium salt and is generally the dih ...	7-12-2019 at 04:32 by: Boffis
Diethylamine and m-Toluic acid from DEET [rquote=627496&tid=154530&author=Cou]Does m-toluic acid really have a honey odor?[/rquote] ...	7-12-2019 at 02:11 by: Boffis
Nitration of phthalic acid @Brij-09 phthalide NOT phthalamide. This is phthalide: [file]78253[/file]	6-12-2019 at 12:51 by: Boffis
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