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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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