Dictionary,Defintion,Meaning,What is Fluorimetry, Fluorometry, Floatation, Flocculent, Fluorescence Analysis, Fluoridation, Fluorination

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Home >> Inorganic Chemistry Dictionary >> Fluorimetry - Fluorometry

Your Ad Here	Floatation A process used for the concentration of ores (e.g., sulphide ores). It involves the formation of a moderately stable foam by addition of a small quantity of a suitable reagent (e.g., pine oil) followed by aeration. The particles of ore collect in a liquid air inter face of the bubbles and foam is continuously removed from the top of the cell. Flocculent Aggregated in woolly masses; which is used to describe precipitates.
Fluorescence analysis Analysis based on characteristic luminescence of a substance when irradiated. Fluoridation The introduction of small quantities of fluoride compounds into the water supply s a publish-health measure to reduce the incidence of tooth decay in children. Fluorimetry An analytical method using the fluorescent properties of the substance from the base to be estimated.
Fluorination A chemical reaction in which a fluorine atom is introduced into a molecule Fluorite (fluorspar) A mineral form of calcium fluoride, CaF₂, crystallizing in the cubic system. Fluorite is used chiefly as a flux, materials in the smelting of iron and steel. Fluorocarbon A hydrocarbon such a Freon in which part or all hydrogen atoms have been replaced by fluorine atom; can be liquid or gas and is nonflammable an heat-stable; used as refrigerant, aerosol propellant, and solvent. Also known as fluorohydrocarbon.	Your Ad Here
Fluorocarbon resin Polymeric material made up of carbon and fluorine with or with out other halogens (such as chlorine) or hydrogen; the resin is extremely inert and more dense than corresponding fluorocarbons such as Teflon. Fluorometry An analytical technique in which fluorescent properties of the substance from the base of the estimation. Fluorophosphoric acid H₂PO3F, a colourless, viscous liquid that is miscible with water; used in metal cleaners and as a catalyst.
Your Ad Here	Fluorspar A naturally occurring form of calcium fluoride. CaF₂. Fluosilicate A salt derived from fluosilicic acid, H₂SiF6, and containing the SiF6¾ion. Fluosilicic acid H2SiF6, A colourless acid, soluble in water, which attracts glass and stoneware; highly corrosive nd toxic; used in water fluoridation and electroplating. Also known as hydrofluorosilicic acid; hydrofluorosilicic acid; hydrofluorosilicic acid.

Fluosulphonic acid
HSO₃F, Colourless corrosive, fuming liquid; soluble in water with partial decomposition; used as organic synthesis catalyst and in electroplating.

Flux
1. a substance used to keep metal surfaces free of oxide in soldering.
2. a substance used in smelting metals to react with silicate and other impurities and form a low-melting slag.

Fluxional molecule
Refers to a molecule that arranges so easily at room temperature that the normal concept of structure is inadequate i.e., the relative position (of atoms of molecules) becomes indistinguishable. NO structure exists for longer than 10-2 seconds. Example PF5 (a trigonal bipyramid) exhibits only one type of fluorine 19F by n.m.r. spectrocopy.

Formalin
a 40% solution of formaldehyde in water. It is used as a disinfectant, a preservative for zoological purposes, in tanning leather, for treating seeds, embalment.

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