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fluorine
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fluorine

Pale yellow, gaseous, non-metallic element, atomic number 9, relative atomic mass 19. It is the first member of the halogen group of elements, and is pungent, poisonous, and highly reactive, uniting directly with nearly all the elements. It occurs naturally as the minerals fluorite (CaF2) and cryolite (Na3AlF6). Hydrogen fluoride is used in etching glass, and the freons, which all contain fluorine, are widely used as refrigerants.

Fluorine was discovered by the Swedish chemist Karl Scheele in 1771 and isolated by the French chemist Henri Moissan in 1886. Combined with uranium as UF6, it is used in the separation of uranium isotopes.

The Infrared Space Observatory detected hydrogen fluoride molecules in an interstellar gas cloud in the constellation Sagittarius in 1997. It was the first time fluorine had been detected in space.


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BLOW MOLDING AND EXTRUSION PVDF Solvay Solexis Solef 1010 GP,MC,OX,PRN -- BLOW MOLDING, EXTRUSION AND COMPRESSION MOLDING PFA Solvay Solexis Hyflon MFA620 CHR,THR,EL -- BLOW MOLDING, EXTRUSION AND INJECTION MOLDING ETFE Daikin Neoflon EP-521 ABR,ACR,CHR,LCF -- Neoflon EP-541 ABR,ACR,CHR,LCF -- Daikin Neoflon EP-610 ABR,ACR,CHR,LCF -- Neoflon EP-620 ABR,ACR,CHR,LCF -- FEP DuPont Fluoro.
Platinum DuPont Company White Pigments Elvanol[R] Polyvinyl Alcohol Fluoro Chemical Solutions Hercules Pulp and Paper Division SKF Reliability Systems Gold Buckman Laboratories, Inc.
Teflon fluoro additives increase lubricity and wear resistance of thermoplastics and elastomers.
 
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