aga
Forum Drunkard
Posts: 7030
Registered: 25-3-2014
Member Is Offline
|
|
Probably a Silly Question
Is Glacial Acetic Acid the same as Anhydrous Acetic Acid, and is that the same as Acetic Anhydride ?
|
|
|
hissingnoise
International Hazard
Posts: 3940
Registered: 26-12-2002
Member Is Offline
Mood: Pulverulescent!
|
|
Glacial acid is anhydrous or nearly so, but the anhydride forms the acid only on hydration!
|
|
|
woelen
Super Administrator
Posts: 7988
Registered: 20-8-2005
Location: Netherlands
Member Is Offline
Mood: interested
|
|
Acetic anhydride is formed from two molecules of acetic acid:
H3C-C(O)OH + HO(O)C-CH3 ---> H3C-C(O)-O-C(O)-CH3 + H2O
This reaction normally goes the other way around, acetic anhydride added to water gives acetic acid.
|
|
|
aga
Forum Drunkard
Posts: 7030
Registered: 25-3-2014
Member Is Offline
|
|
So Acetic - Water = Glacial = Anhydrous = Anhydride + Water.
Eeek.
I'll just do Schweitzers, dissolve some cotton, giggle for a minute, then chuck the result.
The invention of a paint-on-able fabric will have to wait.
Was thinking of calling it Crayon.
|
|
|
aga
Forum Drunkard
Posts: 7030
Registered: 25-3-2014
Member Is Offline
|
|
Oh !
Thanks woelen.
I'll look that up further.
Edit:
At a quick glance, a Noob's mind wonders if Glacial Acetic in Oleum would produce Acetic Anhydride.
[Edited on 31-8-2014 by aga]
|
|
|
aga
Forum Drunkard
Posts: 7030
Registered: 25-3-2014
Member Is Offline
|
|
Oh2
Seems it's a "DEA List II precursor for heroin" so we'd better stop there and learn nothing new.
It's true : Ignorance really is Bliss.
Back when Nothing was known about Chemistry, it must have been a Blast, literally.
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
