White camphor oil is the first distillation fraction (about 20% of the crude camphor oil). It is a colorless or almost colorless liquid with a cineole-like odor. d2525 0.855–0.875; n20D 1.4670–1.4720; αD +16° to +28°; solubility: 1 vol in 1 vol of 95% ethanol; solutions usually become cloudy on further dilution. In addition to monoterpene hydrocarbons, this oil contains up to 35% 1,8-cineole.