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Simultaneous determinations of fluorine, chlorine, and sulfur in rock samples by ion chromatography combined with pyrohydrolysis
pyrohydrolysis halogen sulfur ion chromatography geological reference material
2017/4/10
We present a simplified method for simultaneous determinations of fluorine (F), chlorine (Cl), and sulfur (S) contents
and isotopic abundances in rock samples. After using pyrohydrolysis to extract F...
Crystal chemistry of superfluorous phase B (Mg10Si3O14F4): Implications for the role of fluorine in the mantle
Crystal chemistry superfluorous phase B(Mg10Si3O14F4) Implications role mantle
2012/4/5
Single-crystalX-raydiffractiondatahavebeenobtainedforcrystalsoftheFanalogof
superhydrousphaseB,MgSi O F .Twinnedcrystalsweresynthesizedusingasplit-
sphereanvilapparatus(USSA-2000)atpressuresbetween1...
19F MAS-NMR Study of Structural Fluorine in Some Natural and Synthetic 2:1 Layer Silicates
Clay minerals 19F MAS-NMR Fluorine Layer silicates Silicates Smectites
2011/12/30
High-resolution solid-state, fluorine-19, magic-angle spinning-nuclear magnetic resonance spectroscopy (MAS-NMR) was used to study natural and synthetic fluorinated 2:1 layer silicates of known compos...
Synthesis of Expandable Fluorine Mica from Talc
Expandable mica Fluorine Intercalation Synthesis Talc
2011/12/30
Expandable fluorine micas were synthesized using talc and Na2SiF6 at 800亱C for 2 hours in air, nitrogen, argon, and under vacuum. Gaseous SiF4, generated from Na2SiF6, and the resultant amorphous sodi...
Structural Fluorine in Sepiolite
Fluorine Hydroxyl Laser microprobe mass spectrometry Dissolution Nuclear magnetic resonance Sepiolite
2011/11/30
Abstract: Sepiolite from Vallecas-Vicálvaro, Spain, contains 1.3% fluorine. Laser microprobe mass spectrometry of this sepiolite suggests the presence of fragments of (SiO2)nOMgF and (SiO2)nOMgOH, whi...