Sciencemadness Discussion Board

What you get if

SM2 - 20-12-2013 at 21:46

you used a solution of niacin, poured into a flask containing an ample amount of freshly prepared, activated aluminum?

Hexavalent - 21-12-2013 at 14:22

I don't suspect much would happen at all.

Random - 21-12-2013 at 15:04

Only thing that can react to is a homogenous mass of niacin and aluminum.

plante1999 - 21-12-2013 at 15:08

Aluminium oxide and hydrogen, plus niacin in solution.

[Edited on 21-12-2013 by plante1999]

Random - 21-12-2013 at 15:17

Quote: Originally posted by plante1999  
Aluminium oxide and hydrogen, plus aluminium in solution.


I doubt niacin is strong enough to react with Al. It's strength could be easily compared with benzoic or citric acid.

[Edited on 21-12-2013 by Random]

plante1999 - 21-12-2013 at 15:30

The poster said activated aluminium, AKA amalgamated in general.

EDIT, I had made a typo.

[Edited on 21-12-2013 by plante1999]

SM2 - 21-12-2013 at 21:16

how about aa and pyridine? plante1999, making use of the Kontes micro?



plante1999 - 21-12-2013 at 21:19

I did use it a fair amount of time, and even baugth two borther for it, one kontes and one supelco. Although my scale was not enough precise, really...

I don't think carboxilate can be reduced this way, catalysed decarboxilation would be better for sure.

Hexavalent - 22-12-2013 at 09:10

Quote: Originally posted by plante1999  

I don't think carboxilate can be reduced this way, catalysed decarboxilation would be better for sure.


Niacin is not a carboxylate, but a carboxylic acid. Magpie posted a thread in the Prepublications section on its thermal decarboxylation with a copper chromite catalyst.

plante1999 - 22-12-2013 at 09:12

I was reffering to the family of molecules containing a carboxylate group.

Hexavalent - 22-12-2013 at 09:18

Quote: Originally posted by plante1999  
I was reffering to the family of molecules containing a carboxylate group.


Carboxylates are salts or esters of carboxylic acids, which is termed a homologous series. You are referring to the carboxyl functional group.

plante1999 - 22-12-2013 at 12:17

Well, well, I assume I made a typographical mistake. I meant that RCO2R and RCO2H at the same time.

Hexavalent - 22-12-2013 at 12:25

Quote: Originally posted by plante1999  
Well, well, I assume I made a typographical mistake. I meant that RCO2R and RCO2H at the same time.


Bullshit. I appreciate that English is not your first language, but attempting to use this to excuse a lack of understanding, is ridiculous.

RCO2R' are esters, whereas RCO2H are carboxylic acids.

[Edited on 22-12-2013 by Hexavalent]

plante1999 - 22-12-2013 at 12:41

You have to understand hexavalent, that I have the molecule in my head, and what I type is not what I think necessarily due my English skills. But think what you like.

bfesser - 22-12-2013 at 13:38

Alright, that's enough.

[Edited on 23.12.13 by bfesser]