4-Methylbenzoic acid
1923613
162226328
2007-10-04T12:27:47Z
Rifleman 82
1255637
imagesize
{{Chembox new
| Name = 4-Methylbenzoic acid
| ImageFile = 4-Methylbenzoic_acid.png
| ImageSize = 80px
| ImageName = 4-Methylbenzoic acid
| IUPACName = 4-Methylbenzoic acid
| Section1 = {{Chembox Identifiers
| CASNo = 99-94-5
| EINECS = 202-803-3
| SMILES = CC1=CC=C(C=C1)C(=O)O
}}
| Section2 = {{Chembox Properties
| Formula = CH<sub>3</sub>C<sub>6</sub>H<sub>4</sub>COOH
| MolarMass = 136.15 g/mol
| MeltingPt = 177-180 °C
| BoilingPt = 274-275 °C
| Density =
}}
| Section4 = {{Chembox Thermochemistry
| DeltaHf = -429 kJ/mol
| DeltaHc = 3862 kJ/mol}}
}}
'''4-Methylbenzoic acid''', also known as '''''p''-toluic acid''' or crithminic acid (''obsolete'') is a substituted [[benzoic acid]]. It is an intermediate in some industrial processes for the oxidation of [[p-Xylene|p-xylene]] to [[terephthalic acid]] which is used in the manufacture of [[Polyethylene terephthalate|PET]]. It is a white crystalline solid that is practically insoluble in water, but soluble in [[acetone]].
==See also==
*[[o-Toluic acid]]
*[[m-Toluic acid]]
==References==
{{Unreferenced|date =September 2007}}
<references/>
{{DEFAULTSORT:Methylbenzoic acid, 4-}}
[[Category:Benzoic acids]]
[[Category:Aromatic compounds]]
{{aromatic-stub}}
[[lv:Toluilskābe]]