Resorcinol - C<sub>6</sub>H<sub>6</sub>O<sub>2</sub>

What is Resorcinol?

Resorcinol is an organic compound with the chemical formula C6H6O2. It is one of the three isomeric benzenediols which is white in colour and soluble in water. It is also known as Resorcin or m-Dihydroxybenzene. It is a 1,3-isomer of benzenediol. It is a benzenediol that is benzene dihydroxylated at position number 3 and 1. It functions as a sensitiser and an erythropoietin inhibitor.

Resorcin is a crystalline solid very white in colour and soluble in water, ether, and alcohol. It has a faint odour with sweetish to bitter taste. It does not dissolve carbon disulfide and chloroform. It turns into pink when to light if it is not in its pure form. It burns, however, difficult to ignite. It is widely used in making of pharmaceuticals and plastics.

Resorcinol Properties

Resorcinol C6H6O2
Molecular Weight of Resorcinol 110.1 g/mol
Density of Resorcinol 1.28 g/cm3
Boiling Point of Resorcinol 277 °C
Melting Point of Resorcinol 110 °C

Structure of Resorcinol (C6H6O2)

Structure of Resorcinol

Uses of Resorcinol (C6H6O2)

  • Resorcinol is used as a disinfectant or an antiseptic in pharmaceutical products.
  • It is used to treat skin infections as seborrheic dermatitis, psoriasis, calluses, eczema, warts, and acne.
  • It is used in the manufacturing of resins.
  • It is an analytical reagent used to determine the quality of ketoses.

Production of Resorcinol

m-Dihydroxybenzene can be synthesized in various ways. Some of them are discussed here. Dialkylation of benzene with propylene to obtain 1,3-diisopropyl benzene. Hock rearrangement and oxidation of this obtained product gives resorcinol and acetone.

It can be produced by melting resins such as asafoetida, and galbanum with KOH (potassium hydroxide), or by the distillation process of Brazilwood extract.

It may be also prepared by melting benzene-1,3-disulfonic acid, phenol-3-sulfonic acid, 3-iodophenol, in the presence of potassium carbonate (K2CO3) by the action of nitrous acid (HNO2) on 1,3-diaminobenzene or on 3-aminophenol. Many para and ortho compounds of the aromatic series such as benzene-para-disulfonic acid, bromophenols also yield resorcinol on fusion with KOH (potassium hydroxide).

Learn more about the different applications, structure, and properties of Resorcinol from the expert faculties at BYJU’S – India’s largest education company.

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