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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
Azeotropic esterifications
Hi Pumukli, on the point of using a heavy entrainer in a soxhlet extract as you had done; why doesn' ...
29-11-2019 at 12:19
by: Boffis
Azeotropic esterifications
I ran a larger scale oxalate preparation as before and added a little toluene sulphonic acid to assi ...
28-11-2019 at 04:59
by: Boffis
OTC pyrazole synthesis
Well, since nitrogenes seems to have lost interest in pyrazoles I will pursue them alone!

I have ...
27-11-2019 at 13:24
by: Boffis
Diethylamine hydrochloride - Success!
@ monolithic, there is a recently resurrected thread with an old link to a paper that describes the ...
27-11-2019 at 10:24
by: Boffis
What would the procedure for Benzidine to aniline look like?
Glycerin is not stable enough at high temperatures to replace ethylene or propylene glycol in the de ...
26-11-2019 at 15:04
by: Boffis
Masking of nitrite during nitrate determination
How much is "some"? Are you using a published procedure or a home-brewed technique? Also this is not ...
26-11-2019 at 07:06
by: Boffis
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