Lefaucheux10 - 2-3-2017 at 01:22
Hi,
Can i use some BHT (dibutylhydroxytoluene ) to prevent the oxidation of benzaldehyde in the acid ?
How much should i use ?
thank
CuReUS - 2-3-2017 at 07:43
I don't think an anti-oxidant is needed for benzaldehyde as long as you keep it in an air tight container(If the container is not air tight to start
with,it becomes one after a few days because the stopper will get jammed due to some of the benzaldehyde oxidising to benzoic acid
)
Lefaucheux10 - 2-3-2017 at 07:54
2 years ago i test a stock of benzaldehyde for peroxyde and it was positive !
surprising but these is the reality benzaldehyde can form peroxyde....
good bottle is an evidence for benzaldehyde and tape arround the cap too
Lefaucheux10 - 2-3-2017 at 08:43
2 years ago i test a stock of benzaldehyde for peroxyde and it was positive !
surprising but these is the reality benzaldehyde can form peroxyde....
good bottle is an evidence for benzaldehyde and tape arround the cap too
Dr.Bob - 2-3-2017 at 19:08
But BHT may not have as good a redox potential as BHT, so I'm not sure that it would really protect benzaldehyde. The main oxidation product is
benzoic acid, which will form readily upon exposure to air. I have never seen any commercial aldehyde with BHT present, so I doubt it is that
useful. BHT is mostly used for ethers and some other air sensitive compounds that form peroxides, but none that I am aware of oxidize to acids.
byko3y - 2-3-2017 at 21:12
Almost any antioxidant will work.
Yttrium2 - 3-3-2017 at 03:02
Is there something I might be missing
Corrosive Joeseph - 3-3-2017 at 04:32
'Hydroquinone is the most active anti-oxidant for benzaldehyde'................
https://books.google.de/books?id=bKIrDgAAQBAJ&pg=PA188&a...
'Thiourea is therefore somewhat over twelve times as effective as hydroquinone ' when used as an antioxidant on benzaldehyde............
https://www.google.com/patents/US2280311
Hmmm.................
/CJ