The Student Room Group

Aliphatic vs Aromatic, smoky vs sooty

I had a quick look in the other chemistry threads, I couldn't find anything, perhaps I didn't look hard enough, so I apologise if there's a similar thread already. After Easter, I have an assessed practical.
Does an aliphatic or aromatic compound burn with a smoky flame?
Does an aliphatic or aromatic compound burn with a sooty flame?
The internet gives conflicting advice.

Reply 1

Aromatic compounds burn with a sooty flame due to a high carbon concentration.

Aliphatic compounds however means straigh-chain compounds and therefore burn depending on the functional group attached to it but I wouldnt specifically say they give off a smoky flame. Sooty/smoky is usually reserved for aromatic compounds.

Reply 2

coolasice
Aromatic compounds burn with a sooty flame due to a high carbon concentration.

Aliphatic compounds however means straigh-chain compounds and therefore burn depending on the functional group attached to it but I wouldnt specifically say they give off a smoky flame. Sooty/smoky is usually reserved for aromatic compounds.

THANK YOU THANK YOU SO MUCH. I've been searching for the answer for over an hour.

Reply 3

coolasice
Aromatic compounds burn with a sooty flame due to a high carbon concentration.

Aliphatic compounds however means straigh-chain compounds and therefore burn depending on the functional group attached to it but I wouldnt specifically say they give off a smoky flame. Sooty/smoky is usually reserved for aromatic compounds.

The functional group in the context of my question is OH, I've only just realised it was supposed to be for a particular function group.

Reply 4

Aromatic compounds burn with a sooty flame.

Reply 5

Original post by Sehsb
Aromatic compounds burn with a sooty flame.


This thread is over 4 years old, a bit late.

Reply 6

Original post by Phichi
This thread is over 4 years old, a bit late.


It's the boredom of Christmas ...

Reply 7

can a aliphatic compound burn with smoky flame??

Reply 8

Original post by Hira chouhdry
can a aliphatic compound burn with smoky flame??


Yes. Specifically, alkynes burn with a very Sooty flame sooty_sam_22.jpg