Zirconium tetrafluoride Zirconium tetrafluoride Zirconium(IV) fluoride (ZrF) is an inorganic chemical compound. It is a component of ZBLAN fluoride glass. It is insoluble in water. It is the main component of fluorozirconate glasses. Three crystalline phases of ZrF have been reported, α (monoclinic), β (tetragonal, Pearson symbol tP40, space group P42/m, No 84) and γ (unknown structure). β and γ phases are unstable and irreversibly transform into the α phase at 400 °C. Zirconium fluoride is used as a zirconium source in oxygen-sensitive applications, e.g. metal production. Zirconium fluoride can be purified by distillation or sublimation. Conditions/substances to avoid are: moisture, active
Synthetic cannabinoids were originally used for cannabinoid research focusing on tetrahydrocannabinol (THC), the main psychoactive and analgesic compound found in the cannabis plant. Synthetic cannabinoids were used in part due to legal restrictions on natural cannabinoids, which make them very hard to obtain for research. Tritium-labelled cannabinoids such as CP-55,940 were instrumental in discovering the cannabinoid receptors in the early 1990s. Some early synthetic cannabinoids were also used in clinics. Nabilone, a first generation synthetic THC analog, has been used as an antiemetic, a drug to combat vomiting and nausea, since 1981. Synthetic THC (marinol, dronabinol) has been used as an antiemetic