clean yellow or bluish flame
Many alkanes and their substituted derivatives burn with a
smoky flame
most aromatic compounds burn with a
smoky flame
. Some halogen compounds also burn with a
Polyhalogenated compounds
can be very difficult to ignite.
Inorganic and organic salts
s always leave a residue upon burning or may not burn at al
colorless and blue flame
The higher the oxygen content of a compound, the greater the propensity for the compound to burn with a
aluminum chloride and choloroform
Aromatic compounds and their derivatives usually give characteristic colors when they come into contact with a mixture of a
orange to red
Benzene derivatives color if reacted with AlCl3
Blue
Naphthalene color if reacted with AlCl3
Purple
Biphenyl color if reacted with AlCl3
Green
Anthracene color if reacted with AlCl3
Alkylation and hydride transfer reactions
Stable, highly colored carbocation salts form on the aluminum chloride surface through
yellow-oily solution
results of benzene in nitration
red-brown precipitate
results of benzene in Le rosen
red
benzene reaction to AlCl3
orange
toluene reaction to AlCl3
orange
chlorobenzene reaction to AlCl3
no reaction
hexane reaction to AlCl3
it is used as a catalyst to enable electrophilic nitronium ion
use of sulfuric acid in Nitration
the Le rosen agent will detect an aromatic compound and will give off a an intense color such as red-brown color
indication of Le rosen test
used as a lewis acid catalyst which enables the alkyl halide to be added to the aromatic ring
AlCl3 use