carboxylic acids. hcooh ch 3 cooh aromatic aliphatic formic acid acetic acid tartaric acid citric...
TRANSCRIPT
CARBOXYLIC ACIDS CARBOXYLIC ACIDS
R C
O
OH
CH3OH[O]
K2Cr2O7
HCHO[O]
H2O2
HCOOH
C2H5OH[O]
K2Cr2O7
CH3CHO[O]
H2O2CH3COOH
CHCOOHHO
CHCOOHHO
CH2COOH
CCOOHHO
CH2COOH
HCOOH
CH3COOH
AromaticAromaticAliphaticAliphaticCOOH
COOH
OH
COOH
COOH
Formic acid
Acetic acid
Tartaric acid
Citric acid
Benzoic acid
Salicylic acid
Phthalic acid
Colourless
Colourless
Yellowish white
Liquid, mobily, true
Liquid, mobily, true
Solid, crystalline or powder
Pungent odor
Vinegar odor
Characteristic odor
Inflammable, non luminous, non smoky
Inflammable, non luminous, non smoky
Inflammable, luminous, smoky
Volatilization
Swelling up & blackening
Melting & blackening or charring
Melting
No change
Change in color flame
Change in appearance
Inflammability
Change in odor Residue
No change No residue
Burnt-sugar odorBlack residue
Yellow stain
No residueSuffocating odor
Phenolic odor
Na2CO3 solution + acid Effervescence
Miscible in H2O
Soluble in H2O
All the compounds are Strong acidAll the compounds are Strong acid
In soluble in H2O & dil. HcL but soluble in 10%
NaOH
Effervescence
Change blue L.p.
red
Not done (only for solid)
No reaction Burnt – sugar odor
No reaction
No reaction
Benzene odor
Phenolic odor
No reaction
No reaction
No reaction
No reaction
Burnt – sugar odor
Benzene odor
Phenolic odor
No reaction with all
Effervescence due to CO2 evolution Not done
No reaction
No reaction
Effervescence + heavy charring
Effervescence + yellow color
No reaction
Acid + NH4OH [until complete disapperance of ammonia odor]wait 2 3' cooling + 2-3 drops N. FeCl3
Blood red color – reddish brown color
Lemon yellow color
Buff ppt
No need to use NH4OH with acid JUSTJUSTAcid + H2O + N. FeCl3 Violet color