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	Podcast:		Geowissenschaften - Open Access LMU
	Episode:		Chemical diffusion of fluorine in melts in the system Na2OAl2O3SiO2
	Category:		Science & Medicine
	Duration:		00:00:00
	Publish Date:		1985-01-01 05:00:00
	Description:		The volatilization of fluorine from three melts in the system Na2OAl2O3SiO2 has been investigated at 1 atm pressure and 1200–1400°C. The melts chosen have base compositions corresponding to albite, jadeite and a peraluminous melt with 75 mole % SiO2. Melt spheres were suspended from platinum loops in a vertical tube furnace in a flow of oxygen gas, then quenched, sectioned and analysed by electron microprobe. The microprobe scans indicate that transport of fluorine to the melt-vapor interface is by binary, concentration-independent interdiffusion of fluorine and oxygen. FO interdiffusivity increases in the order albite
	Total Play:		0