khourygeo78
Harmless
Posts: 31
Registered: 30-12-2015
Member Is Offline
Mood: No Mood
|
|
Explanation of chemical phenomenon?
So, I had nh4cl. I mixed it with water and ethanol, heated the solution for 24hours then distilled, I could easily separate ethanol,water and nh4cl as
no reaction took place
However, I forgot a solution consisting of nh4cl ethanol and water that were soaked mixed together for 2 months. The result was a certain quantity of
nh4cl turning black. I tried to distill, and got no ethanol at all, then augmented fire to distill the water, and I got a milky white water which was
as volatile as common water. At the bottom of the flask remained nh4cl and some of the black powder following the reaction with ethanol.
Does anyone know how and why nh4cl reacted with ethanol, and how it could form a white milky water after distillation?
Thanks for your time
|
|
|
Melgar
Anti-Spam Agent
Posts: 2004
Registered: 23-2-2010
Location: Connecticut
Member Is Offline
Mood: Estrified
|
|
Ethanol will oxidize very slowly over time to acetal. NH4Cl can react with acetal, but I don't know to what end, or what side products would be
created.
|
|
|
morsagh
Hazard to Others
Posts: 187
Registered: 20-2-2014
Member Is Offline
Mood: No Mood
|
|
Did you used pure analytical ethanol? If not, it will explain a lot.
|
|
|
PHILOU Zrealone
International Hazard
Posts: 2893
Registered: 20-5-2002
Location: Brussel
Member Is Offline
Mood: Bis-diazo-dinitro-hydroquinonic
|
|
CH3-CH2-OH + 1/2 O2 --> CH3-CH(OH)2 --> CH3-CH=O + H2O
NH4Cl <==--> NH3 + HCl
CH3-CH=O + NH3 --> CH3-CH=NH + H2O
CH3-CH=NH + HCl --> CH3-CH=NH2Cl
CH3-CH=O <--> CH2=CH-OH
CH3-CH=NH <--> CH2=CH-NH2
CH3-CH=NH2Cl <--> CH2=CH-NH3Cl
CH3-CH=O + CH3-CH=O -HCl-> CH3-CH=CH-CH=O + H2O
Condensation crotonisation into dark tarry products via polycondensation ... like CH3-CH=CH-CH=CH-CH=O
Then hyperconjugated pi system allows for dark colour and Diels Alder and Michael additions...thus very complex system of molecules in fine.
[Edited on 1-8-2016 by PHILOU Zrealone]
PH Z (PHILOU Zrealone)
"Physic is all what never works; Chemistry is all what stinks and explodes!"-"Life that deadly disease, sexually transmitted."(W.Allen)
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
