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Azo dye: p-aminophenol and 4-chloro-2-nitrophenol
Hey Fery,
Okay, I'm glad to know the purity can be quite high from pills. I may try to redo the rec ... |
9-5-2021 at 12:45
by: night429 |
Azo dye: p-aminophenol and 4-chloro-2-nitrophenol
Hey Fery,
Thank you! I was unaware that temperature could be quite higher than the temperatures typ ... |
9-5-2021 at 08:13
by: night429 |
Azo dye: p-aminophenol and 4-chloro-2-nitrophenol
So, I've decided to try my hand at making an azo dye between these two compounds, just because I nev ... |
8-5-2021 at 15:48
by: night429 |
Synthesis of 4-chloro-2-nitrophenol
Thanks Boffis, I'll take a look at it! I'm surprised to hear that the reaction time is so much longe ... |
6-3-2021 at 17:58
by: night429 |
Synthesis of 4-chloro-2-nitrophenol
Thanks! I was unaware that it wasn't very soluble in hydrochloric acid. I don't have access to my su ... |
3-3-2021 at 11:43
by: night429 |
Synthesis of 4-chloro-2-nitrophenol
An update to my previous post:
The yellow crystals dried to an off-white, which concerned me, si ... |
1-3-2021 at 22:50
by: night429 |
Synthesis of 4-chloro-2-nitrophenol
Sad to hear that it tarred up! That's a good idea, and I'm interested in hearing how the diazonation ... |
27-2-2021 at 16:09
by: night429 |
Synthesis of 4-chloro-2-nitrophenol
Hi Boffis, I haven't had the opportunity to run the experiment yet. It definitely sounds like someth ... |
22-2-2021 at 14:21
by: night429 |
Synthesis of 4-chloro-2-nitrophenol
Ah okay, that makes sense. I could try to prepare and use the monoacetate ester when I get the chanc ... |
17-2-2021 at 14:48
by: night429 |
Synthesis of 4-chloro-2-nitrophenol
That's a good point. The last thing I'd want is to deal with something like acrolein.
My target i ... |
16-2-2021 at 13:56
by: night429 |
Synthesis of 4-chloro-2-nitrophenol
Thanks Boffis! I was hesitant to use more sodium hydroxide as the book warns that too concentrated s ... |
16-2-2021 at 09:02
by: night429 |
Synthesis of 4-chloro-2-nitrophenol
I followed the procedure outlined on page 109 of "Fundemental Processes of Dye Chemistry" scaled dow ... |
15-2-2021 at 14:31
by: night429 |
Bubbling from nitrourea
[rquote=651247&tid=156736&author=Boffis]You always get a little bubbling from this reaction ... |
21-12-2020 at 20:54
by: night429 |
Purification of phenelzine
I followed [url=https://patents.google.com/patent/CN107188822A/en]a patent[/url] to make phenelzine ... |
21-12-2020 at 20:50
by: night429 |
Bubbling from nitrourea
I've attempted to make nitrourea on two occasions. In both of these, I follow the same general proce ... |
12-12-2020 at 20:11
by: night429 |
Azo dye from p-aminophenol and salicylic acid
[rquote=647829&tid=156049&author=Texium (zts16)]Nice job! Do you have the means to character ... |
30-10-2020 at 21:30
by: night429 |
Azo dye from p-aminophenol and salicylic acid
Only replying to say that I was successful in making this compound, and I've attached a picture of i ... |
30-10-2020 at 19:24
by: night429 |
Azo dye from p-aminophenol and salicylic acid
[rquote=643279&tid=156049&author=AvBaeyer]If you check out the forum library you will find s ... |
17-8-2020 at 19:03
by: night429 |
Azo dye from p-aminophenol and salicylic acid
That paper actually does mention the final product on the middle-right of page 4, called 4,4'-dihydr ... |
17-8-2020 at 14:37
by: night429 |
Azo dye from p-aminophenol and salicylic acid
I've been wanting to make an azo dye from cheap, OTC chemicals, and I settled on using salicylic aci ... |
17-8-2020 at 13:52
by: night429 |
