Sciencemadness Discussion Board

Stoichiometry of the reaction of ascorbic acid and copper sulfate

Draeger - 27-6-2020 at 10:13

I am interested in doing the reaction of ascorbic acid and copper sulfate to produce copper powder. I like to do my reactions very close to the stoichiometric amounts, but I can't find any information on the reaction except for that it exists. I probably just missed something, so could someone help me?

Tsjerk - 27-6-2020 at 10:49

Should be 1:1.

Ascorbic acid loses two electrons while forming dehydroascorbic acid.

Draeger - 27-6-2020 at 11:35

Quote: Originally posted by Tsjerk  
Should be 1:1.

Ascorbic acid loses two electrons while forming dehydroascorbic acid.

Alright. Thank you.

UC235 - 27-6-2020 at 19:56

To avoid under-reduction and formation of Cu(I) species, I would advise a generous excess of ascorbic acid.