Pavārs kļūdījās

Z420505

Don't buy from me
Member
Language
🇬🇧
Joined
Sep 27, 2024
Messages
3
Reaction score
3
Points
3
Pirms kāda laika man kāds uzņēmums atsūtīja 5clad komplektu, bet 5bromopentēna vietā viņi izmantoja fluropentēnu, un tik un tā tas iznāca vājš, un, sadaloties acetonā, tas viss vienkārši kļūst balts. Tāpēc mans ideāls bija pasūtīt 5bromo un vairāk dmf un pārgatavot, un cerams, ka iznāks labāk. Domas?
 

WillD

Expert
Joined
Jul 19, 2021
Messages
774
Reaction score
1,054
Points
93
Manuprāt, problēma ir cita. Fluorētajai versijai nevajadzētu būt problēmai.
 

HerrHaber

Don't buy from me
Resident
Language
🇬🇧
Joined
Jan 15, 2023
Messages
562
Reaction score
303
Points
63
Godīgi sakot, esmu pārsteigts, ka tas vispār izdevās, un, lai gan šajā kontekstā ir zināms, ka terminālais fluora atoms darbojas, bromīds vismaz var būt (laba) atstājamā grupa, bet fluorīds - nekad, jo C-F saites stiprums ir tāds. Dubultā saite ir reaktīva citos apstākļos, tāpēc tā nevar būt labākā reakcijas vieta. Veiciet nelielu partiju ar 5-brom-1-pentēnu un pārliecinieties, vai produkts kļūst labāks... baltā krāsā pārvēršanās saskarē ar acetonu skaidri norāda, ka produkts ir atšķirīgs, bet, ņemot vērā jūsu optimistisko viedokli, es to varu nosaukt par nepilnīgu, tāpēc trūkst "astes", kā to liecina jūsu aprakstītais un izskaidro lielo iedarbības samazināšanos. Jums būtu jāizmanto 5-brom-1-pentēns vai 1-brom-5-pentāns, lai panāktu labāku kvalitāti. Es neesmu eksperts tieši šajā jomā, bet man šķiet, ka ķīmija ir zināmā mērā jēgpilna, jo man arī šķiet neparasti, ka cilvēki apraksta savas preparātu kļūdas šādā atgriezeniskā veidā. Domāju, ka galu galā jums būs vai nu labāka potence, nekā tā ir, vai arī nav būtisku izmaiņu gadījumā, kurā es iesaku to nepārdot, jo problēma ir tālu no atrisinājuma.
 

Z420505

Don't buy from me
Member
Language
🇬🇧
Joined
Sep 27, 2024
Messages
3
Reaction score
3
Points
3
It worked, the batch after recooking turned right color in solvent. Also, had a very good affect. Had a white residue at bottom but I’m going to say that was a bonding problem with first cook. 5-bromo should not be substituted with fluropentane. It’s just weak and create a different chemical that what attendended.
 

HerrHaber

Don't buy from me
Resident
Language
🇬🇧
Joined
Jan 15, 2023
Messages
562
Reaction score
303
Points
63
if Fuoride was substituted as Bromide was intended to, you deserve some place in a decent journal publish about it. Instead the double bond reacted (most likely), which is also great for you and the anticipated product can't be else than potent by S.A.R. be careful with the side products though, (more potent is not necessarily more pure or safe). Cheers!
 

Z420505

Don't buy from me
Member
Language
🇬🇧
Joined
Sep 27, 2024
Messages
3
Reaction score
3
Points
3
A lot of these Chinese companies just send whatever, most are just selling without knowing exactly what they are selling. Look at the ingredients list and discovered an error in list prior to previous orders.
 

HerrHaber

Don't buy from me
Resident
Language
🇬🇧
Joined
Jan 15, 2023
Messages
562
Reaction score
303
Points
63
Like one of those shops with a big advert saying "translate server error" instead the name of the shop in English
 

HerrHaber

Don't buy from me
Resident
Language
🇬🇧
Joined
Jan 15, 2023
Messages
562
Reaction score
303
Points
63
I accidentally treated this as a joke when in fact it isn't that much to laugh about when knowing details of how some work as I tend not to perform any tests on my regular known materials unless something seems wrong to me.
 
Top