White camphor (essential) oil detection

Crude camphor oil and crude camphor were obtained by steam distillation from the roots, stems, branches, and leaves of the camphor tree, a plant of the Lauraceae family. The distillation time was generally 15 hours. Then, the dissolved camphor and byproducts such as white oil, aromatic oil, terpineol, red oil (red oil), blue oil, and asphalt with different boiling points in the crude camphor oil were extracted by vacuum distillation method; The proposed camphor is a reprocessed camphor, also known as naphtha. After mixing crude camphor and reprocessed camphor in a certain proportion, refined camphor is obtained by using the method of sublimation crystallization to remove the oil, water, and other impurities contained. The essential oil obtained after centrifugation of camphor is refined camphor oil. Cinnamomum camphora oil is used in medicine and essence for preparing soap, as well as varnish and shoe polish. Crude camphor oil is removed by pressure filtration to remove the crystallization of crude camphor, and the filtrate is subjected to vacuum fractionation. The first distillate is white camphor oil. It is a colorless liquid. It has an odor of eucalyptus. 0.855~0.875, 1.4670~1.4720, optical rotation+16 °~+28 °. The main component is eucalyptin. It is a raw material for extracting eucalyptin and an important organic solvent

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