PHENANTHRENE — the tricycle and ches to y aromatic hydrocarbon, C14H10. Structure completely hydrogenated F. (perhydrophenanthrene) it is included in a hydrocarbon skeleton of a number of natural compounds — erased other (see), including cholesterol (see), bile acids (see), steroid hormones (see), sex hormones (see), corticosteroids (see), alkaloids of group of morphine (see), solanidine, cardiac glycosides (see), napr, strophanthidin, saponins (see), terpenes (see), napr, abietinic to - you and fichtelite, poisons (see) amphibiouses, napr, a bufotalina, nek-ry antibiotics (see), napr, fusidic to - you, etc. The phenanthrene structure is molecular composition of many oncogenous substances (see), however itself F. has no oncogenous properties.
Cleared F. represents colourless plates, t°un 101 °, ^ ° kip 340,1e (with sublimation), ud. the weight (weight) at 20 ° — 0,98; it is ether-soluble, benzene, chloroform, it is sparingly soluble in alcohol, is water-insoluble.
Solutions of phenanthrene fluoresce blue beams. Its chemical properties are defined by high reactivity of communication between the 9th and 10th carbon atoms, on this communication there is a hydrogenation F. to 9, 10-dihydrophenanthrenes, oxidation to 9, 10-phenanthrenquinones an ibro-mirovaniye. T. receive from anthracene fraction of coal tar. Use as the stabilizer of explosive substances (nitroglycerine and nitrocellulose).
Maximum allowable concentration F. in air of a working zone of 0,8 mg/m3.
Phenanthrene as professional harm — see Hydrocarbons. Bibliography: F and z e r L. and F and z e p M. Steroids, the lane with English, M., 1964.
A. N. Klimov, D. V. Ioffe.