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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
Nitration of phthalic acid @Fery, Even starting with the anhydride the overal yield of pure 3-nitrophthalic acid is only ab ...	5-12-2019 at 15:54 by: Boffis
Nitration of phthalic acid The problem is not the yield of nitro acid but the ratio of 3 to 4 nitro acids and their separation. ...	5-12-2019 at 09:23 by: Boffis
Drying Formic Acid The best laboratory method for high test formic acid preparation is azotropic distillation with hept ...	5-12-2019 at 01:22 by: Boffis
Got some rare stuff. Arsenic trioxide I have worked in mine where native arsenic occurred in seams and blocks more than 15cm thick in calc ...	4-12-2019 at 15:35 by: Boffis
Diethylamine Hydrochloride Synthesis I have just posted in the prepublication section my write-up on my experiments into the hydrolysis o ...	4-12-2019 at 06:42 by: Boffis
Diethylamine and m-Toluic acid from DEET As promised my write-up on the alkaline hydrolysis of DEET is attached. Any comments, typos, or othe ...	4-12-2019 at 06:39 by: Boffis
Energetic precipitate from the reaction of ascorbic acid/Cu(II) and sodium nitrite Hi nitro-genes; had a look at the original paper. Mmmm they talk about nitrosoascorbic acid but in r ...	2-12-2019 at 14:53 by: Boffis
One of the easiest scents to produce Ahh... that sounds more plausible! So the bit about citral and acetone is just irrelevant bollocks t ...	2-12-2019 at 12:58 by: Boffis
Report on making Aluminium Iodide Any idea what the hydration state of aluminium iodide is? You certainly haven't made anhydrous AlI3 ...	2-12-2019 at 01:22 by: Boffis
Energetic precipitate from the reaction of ascorbic acid/Cu(II) and sodium nitrite Given the conditions under which Brauer describes the preparation of hyponitrites (sodium amalgan re ...	1-12-2019 at 13:35 by: Boffis
One of the easiest scents to produce Castor oil is a "fixed" or fatty oil, that is its a mixture of glycerol esters but in the descriptio ...	30-11-2019 at 08:10 by: Boffis
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