p-Toluic acid

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p-Toluic acid
4-Methylbenzoic acid
Names
IUPAC name
4-Methylbenzoic acid
Other names
para-toluic acid
p-toluic acid
para-methylbenzoic acid
p-methylbenzoic acid
toluene-4-carboxylic acid
crithminic acid
Identifiers
99-94-5 YesY
ChEBI CHEBI:36635
ChEMBL ChEMBL21708 YesY
ChemSpider 7190 YesY
EC number 202-803-3
Jmol-3D images Image
KEGG C01454 YesY
Properties
C8H8O2
Molar mass 136.15 g·mol−1
Appearance Crystalline solid
Melting point 180 to 181 °C (356 to 358 °F; 453 to 454 K)[1]
Boiling point 274 to 275 °C (525 to 527 °F; 547 to 548 K)[1]
Sparingly soluble in hot water
Thermochemistry
-429 kJ/mol
3862 kJ/mol
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY verify (what isYesY/N?)
Infobox references

p-Toluic acid (4-methylbenzoic acid) is a substituted benzoic acid with the formula CH3C6H4COOH. It is an intermediate in some industrial processes for the oxidation of p-xylene to terephthalic acid which is used in the manufacture of polyethylene terephthalate. It is a white crystalline solid that is practically insoluble in water, but soluble in acetone.

See also[edit]

References[edit]

  1. ^ a b Merck Index, 12th Edition, 9673