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The principle of fluoride varnish is to apply fluoride salt in a very high concentration (approximately 50,000 ppm) onto the surface of the teeth. [36] Fluoride varnish is a resin-based application that is designed to stay on the surface of the teeth for several hours.
Fluoride varnish is widely used in the United Kingdom, following guidelines from multiple sources backing its efficacy. Public Health England, a UK government organisation sponsored by the Department of Health, released guidance in 2014 recommending fluoride varnish application at least twice yearly for children and young adults. [13]
Polyvinyl fluoride (PVF) or –(CH 2 CHF) n – is a polymer material mainly used in the flammability-lowering coatings of airplane interiors and photovoltaic module backsheets. [2] It is also used in raincoats and metal sheeting.
If HF alone is electrolyzed, hydrogen forms at the cathode (positive part of the cell) and the fluoride ions remain in solution. After electrolysis, potassium fluoride remains in solution. [35] 2 HF 2 − → H 2 ↑ + F 2 ↑ + 2 F −. The modern version of the process uses steel containers as cathodes, while blocks of carbon are used as anodes.
The fluoride ion from dissolved fluoride salts inhibits dental cavities and so finds use in toothpaste and water fluoridation. Global fluorochemical sales amount to more than US$ 15 billion a year. Fluorocarbon gases are generally greenhouse gases with global-warming potentials 100 to 23,500 times that of carbon dioxide , and SF 6 has the ...
Fluorite is a major source of hydrogen fluoride, a commodity chemical used to produce a wide range of materials. Hydrogen fluoride is liberated from the mineral by the action of concentrated sulfuric acid: CaF 2 + H 2 SO 4 → CaSO 4 (s) + 2 HF. The resulting HF is converted into fluorine, fluorocarbons, and diverse fluoride materials. As of ...
Tetra-n-butylammonium fluoride, commonly abbreviated to TBAF and n-Bu 4 NF, is a quaternary ammonium salt with the chemical formula (CH 3 CH 2 CH 2 CH 2) 4 N + F −. It is commercially available as the white solid trihydrate and as a solution in tetrahydrofuran. TBAF is used as a source of fluoride ion in organic solvents. [1]
Fluticasone Furoate is a corticosteroid medication primarily used to treat allergic rhinitis (hay fever) and non-allergic (perennial) rhinitis. It is also indicated for the treatment of nasal polyps in adults. Additionally, fluticasone furoate nasal spray may be prescribed for the management of symptoms associated with sinusitis.
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