Sciencemadness Discussion Board

2 Questions about Glyoxal

khourygeo77 - 12-2-2018 at 07:16

1. What is the solubility of Iron oxide, or Iron acetate or Iron III chloride in such a solvent? Any educated guesses?

2. Is it possible to prepare Glyoxal through Acetaldehyde without using nitric acid?

Thanks

Boffis - 12-2-2018 at 08:15

1. no idea, but since commercial glyoxal is an aqueous solution (40% glyoxal usually) I think it highly likely that ferric chloride is soluble in glyoxal solution. Anhydrous glyoxal I don't know about.

2. Yes use selenium dioxide but if you can't get nitric acid then SeO2 is probably even less helpful.

3. there is at least one extensive thread on the preparation of glyoxal on SM so try using the search engine