Limonene

d-Limonene; (+)-p-mentha-1,8-diene; (R)-4- isopropenyl-1-methylcyclohex-1-ene; C₁₀H₁₆ = 136.2 (5989-27-5)

Colourless liquid, practically insoluble in water, soluble in ethanol (96%).

, about 0.84; , 1.471 to 1.474; , about +124; boiling point, 175° to 177°.

Limonene used in gas chromatography complies with the following additional test.

Assay Gas chromatography (2.2.28) as prescribed in the monograph Peppermint oil (0405).

Test solution The substance to be examined.

Content, minimum 99.0%, calculated by the normalisation procedure.