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Preparation of copper (I) cyanide (OTC Chem)
Really nice work and write-up Valeg96. I am glad to see you managed to get a nice white product some ...
15-10-2020 at 05:10
by: Boffis
Synthesis of para aromatic hydroxyls.
Most methods of aldehyde formation (formylation) from phenol yield the p- isomer. The Rimmer Tiemann ...
13-10-2020 at 04:45
by: Boffis
Organic Nitrites?
Preparation of dimethylglyoxine from butanone and butyl nitrite then hydroxylammonium chloride
12-10-2020 at 01:16
by: Boffis
Synthesis of para aromatic hydroxyls.
Welcome to the forum!

p-Cresol, 1- and 2- naphthols are readily prepared by the process of alkali ...
11-10-2020 at 14:31
by: Boffis
2,2'-Bis-imidazole
With a bit of assistance from a US patent 2003/0199700 I have succeeded in preparing crude 2,2-bis-i ...
11-10-2020 at 14:11
by: Boffis
Estimating boiling points at reduced pressure
Thanks DraconicAcid, That's exactly what I wanted to know!
9-10-2020 at 14:26
by: Boffis
The reaction of guanidine with alkyl thiuronium salts
Thanks Dr.Bob; I might try this again with methyl isothiuronium bromide as I have a bottle of methyl ...
9-10-2020 at 08:57
by: Boffis
Estimating boiling points at reduced pressure
Does anyone know how to estimate the boiling point of a liquid at reduced pressure? For example if I ...
9-10-2020 at 06:59
by: Boffis
The reaction of guanidine with alkyl thiuronium salts
I have been trying to prepare biguanide for some time. There are numerous published methods but in e ...
7-10-2020 at 08:19
by: Boffis
I think hexane can be used as a Dean-Stark solvent alternative to benzene
But won't the butanol also form an ester?
2-10-2020 at 08:30
by: Boffis
Sodium sulphite spontaneous oxidation
Update. From just under 300g of crude, 40 year old (like woelen's), heptahydrate I recovered roughly ...
2-10-2020 at 07:47
by: Boffis
I think hexane can be used as a Dean-Stark solvent alternative to benzene
That's interesting, I have often wonder if hexane or cyclohexane could be used as a substitute for b ...
2-10-2020 at 07:25
by: Boffis
Aesthetic Aromatics: Preliminaries
Thanks Pumukli, sorry to hear about your problems hope they sort themselves out!

Having prepared ...
2-10-2020 at 04:14
by: Boffis
Non trivial nickel boride
Hi njl; I would say before re-inventing the wheel check out the numerous volumes of textbooks of ino ...
30-9-2020 at 10:15
by: Boffis
Aesthetic Aromatics: Preliminaries
[rquote=640144&tid=155719&author=Pumukli]Perhaps you could include 1,3,5-triacetyl-benzene, ...
30-9-2020 at 04:32
by: Boffis
Neutralization Equivalence (NE) value
I am using, as I said, phenolphthalein as indicator. The pKa of p-chlorobenzoic acids is 3.99 about ...
28-9-2020 at 11:43
by: Boffis
Neutralization Equivalence (NE) value
The NE value of a carboxylic acid is in effect the molecular weight if the acid is a mono-protic aci ...
28-9-2020 at 04:00
by: Boffis
Sodium sulphite spontaneous oxidation
@unionised; I think you are right. I have just reheated the beaker slowly and when the crystal mass ...
27-9-2020 at 13:53
by: Boffis
Sodium sulphite spontaneous oxidation
I tried to recrystallise it by dissolving 300g of crude salt in 300ml of warm water. It dissolve rap ...
27-9-2020 at 09:22
by: Boffis
Sodium sulphite spontaneous oxidation
[rquote=644927&tid=156187&author=Boffis]Thanks Unionised, Hmmm, thats interesting. I wonder ...
26-9-2020 at 14:23
by: Boffis
High pressure reactors
I actually have a small one of those reaction vessels and I am quite happy with mine. Mine is only 5 ...
25-9-2020 at 03:54
by: Boffis
1,8 dyhdroxyanthraquinone
No I don't think LiOH will polymerise a hydroxy anthraquinone but you will need to give us a fair bi ...
24-9-2020 at 11:43
by: Boffis
Sodium sulphite spontaneous oxidation
Thanks Unionised, Hmmm, thats interesting. I wonder how easy it is to recrystallise?
21-9-2020 at 09:15
by: Boffis
Sodium sulphite spontaneous oxidation
I recently carried out the preparation of sodium dithionate (Na2S2O6) using the method in a standard ...
21-9-2020 at 02:14
by: Boffis
Ammonium bromide route for rare earth bromides
No, Ce2O3 should be OK but preparing this oxide and preventing from oxidizing to CeO2, which it does ...
19-9-2020 at 10:34
by: Boffis
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