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It is used as a defense against herbivores by at least 40 green plants in Australia, Brazil, and Africa; [43] other biologically synthesized organofluorines include ω-fluoro fatty acids, fluoroacetone, and 2-fluorocitrate. [50] In bacteria, the enzyme adenosyl-fluoride synthase, which makes the carbon–fluorine bond, has been isolated. The ...
The main uses of fluoride, in terms of volume, are in the production of cryolite, Na 3 AlF 6. It is used in aluminium smelting. Formerly, it was mined, but now it is derived from hydrogen fluoride. Fluorite is used on a large scale to separate slag in steel-making. Mined fluorite (CaF 2) is a commodity chemical used in steel-making.
Pure fluorite is colourless and transparent, both in visible and ultraviolet light, but impurities usually make it a colorful mineral and the stone has ornamental and lapidary uses. Industrially, fluorite is used as a flux for smelting, and in the production of certain glasses and enamels.
According to Sun Simiao's (c. 670) Qianjin yifang (千金要方 "Supplement to the thousand Golden Remedies", the powder "contained five mineral drugs — fluorite, quartz, red bole clay, stalactite and sulfur, one animal drug, and nine plant drugs. It was claimed to be effective in curing many diseases and in increasing vitality, but was also ...
Retards absorption of drug [3] St John's wort Tipton's weed, Klamath weed Hypericum perforatum: Antidepressants, [15] [16] warfarin, protease inhibitors for HIV, birth control, some asthma drugs, and many other medications [16]
This is a list of minerals which have Wikipedia articles. Minerals are distinguished by various chemical and physical properties. Differences in chemical composition and crystal structure distinguish the various species .
This is a list of plant species that, when consumed by humans, are known or suspected to produce psychoactive effects: changes in nervous system function that alter perception, mood, consciousness, cognition or behavior. Many of these plants are used intentionally as psychoactive drugs, for
Fluorite of the acidspar grade is used directly as an additive to ceramics and enamels, glass fibers and clouded glass, and cement, as well as in the outer coating of welding rods. [5] Acidspar is primarily used for making hydrofluoric acid, which is a chemical intermediate for most fluorine-containing compounds.