About Fluorides

Fluoride IonThe fluoride ion is the anion of fluorine, F-, and fluorides are compounds which contain this anion. Metallic mono-, di, and trifluorides usually exhibit ionic bonding, pentafluorides and higher exhibit covalent bonding, and tetrafluorides contain bonds with intermediate properties. Ionic-bonded fluorides may be soluble or insoluble: alkali fluorides are soluble, alkali earth metals form insoluble fluorides, transition metal difluorides are often soluble, and trifluorides are insoluble. An exception to some of these trends is beryllium difluoride, which features bonds with partially covalent character and the crystalline structure of a covalently bonded network solid, yet is soluble in water.

Covalently metal-bonded fluorides are typically either gases or volatile liquids or solids, and act chemically as oxidants and fluoridating agents. Tungsten hexafluoride is used routinely to deposit tungsten using chemical vapor deposition methods in semiconductor device fabrication. Uranium hexafluoride is of vital importance to the enrichment processed used to produce nuclear reactor fuels and material for nuclear weapons. Non-metal fluorides also exist, and all are volatile compounds, but their chemical properties vary widely. A number of important superacids contain fluorine, and are typically produced by mixing hydrogen fluoride, itself a highly reactive acid, with a metal fluoride.

Recent Research & Development for Fluorides

Topical Fluoride to Prevent Root Caries: Systematic Review with Network Meta-analysis., Zhang, J, Sardana D, Li K Y., Leung K C. M., and Lo E C. M. , J Dent Res, 2020 Mar 06, p.22034520906384, (2020)

Supramolecular ultrafast energy and electron transfer in a directly linked BODIPY-oxoporphyrinogen dyad upon fluoride ion binding., Chahal, Mandeep K., Liyanage Anuradha, Gobeze Habtom B., Payne Daniel T., Ariga Katsuhiko, Hill Jonathan P., and D'Souza Francis , Chem Commun (Camb), 2020 Mar 05, (2020)

Interface-Dominated Time-Dependent Behavior of Poled Poly(Vinylidene Fluoride-Trifluoroethylene)/Barium Titanate Composites., Vacche, Sara Dalle, Damjanovic Dragan, Michaud Véronique, and Leterrier Yves , Materials (Basel), 2020 Jan 04, Volume 13, Issue 1, (2020)

Fluoride induced mitochondrial impairment and PINK1-mediated mitophagy in Leydig cells of mice: In vivo and in vitro studies., Liang, Chen, Gao Yan, He Yuyang, Han Yongli, Manthari Ram Kumar, Tikka Chiranjeevi, Chen Chenkai, Wang Jundong, and Zhang Jianhai , Environ Pollut, 2020 Jan, Volume 256, p.113438, (2020)

Fluoride-Ion-Catalyzed Synthesis of Ladder-type Conjugated Benzobisbenzofurans via Intramolecular Nucleophilic Aromatic Substitution Reaction under Metal-free and Mild Conditions., Sekino, Katsutoshi, Shida Naoki, Shiki Ryosuke, Takigawa Natsuki, Nishiyama Hiroki, Tomita Ikuyoshi, and Inagi Shinsuke , Org Lett, 2020 Feb 25, (2020)

Sodium fluoride exposure triggered the formation of neutrophil extracellular traps., Wang, Jing-Jing, Wei Zheng-Kai, Han Zhen, Liu Zi-Yi, Zhang Yong, Zhu Xing-Yi, Li Xiao-Wen, Wang Kai, and Yang Zheng-Tao , Environ Pollut, 2020 Feb, Volume 257, p.113583, (2020)

Optimization and validation of a derivatization method with boron trifluoride in ethanol for analysis of aromatic carboxylic acids in water., Kristensen, Mette, Christensen Peter, and Christensen Jan H. , J Chromatogr A, 2019 Sep 13, Volume 1601, p.21-26, (2019)

Effect of Mixed Solvents on the Structure of Polyvinylidene Fluoride Flat Membrane in Thermally Induced Phase Separation Method., Liu, Zhen, Pan Qianqian, Gao Jingni, and Xiao Changfa , J Nanosci Nanotechnol, 2019 Sep 01, Volume 19, Issue 9, p.5994-5998, (2019)

Fluoride removal from water by composite Al/Fe/Si/Mg pre-polymerized coagulants: Characterization and application., Tolkou, Athanasia K., Mitrakas Manassis, Katsoyiannis Ioannis A., Ernst Mathias, and Zouboulis Anastasios I. , Chemosphere, 2019 Sep, Volume 231, p.528-537, (2019)

Subchronic exposure to arsenite and fluoride from gestation to puberty induces oxidative stress and disrupts ultrastructure in the kidneys of rat offspring., Tian, Xiaolin, Feng Jing, Dong Nisha, Lyu Yi, Wei Cailing, Li Ben, Ma Yanqin, Xie Jiaxin, Qiu Yulan, Song Guohua, et al. , Sci Total Environ, 2019 Oct 10, Volume 686, p.1229-1237, (2019)

Preparation of mixed-matrix membranes from metal organic framework (MIL-53) and poly (vinylidene fluoride) for use in determination of sulfonylurea herbicides in aqueous environments by high performance liquid chromatography., Ma, Jiping, Li Shuang, Wu Gege, Wang Shasha, Guo Xiaotong, Wang Liyan, Wang Xiaoyan, Li Jinhua, and Chen Lingxin , J Colloid Interface Sci, 2019 Oct 01, Volume 553, p.834-844, (2019)

Bidentate SO Complexes of Zirconium and Hafnium Difluorides with Highly Activated S-O Bonds., Wei, Rui, Chen Xiuting, and Gong Yu , J Phys Chem A, 2019 Nov 07, Volume 123, Issue 44, p.9567-9572, (2019)

Multiple bimetallic (Al-La or Fe-La) hydroxides embedded in cellulose/graphene hybrids for uptake of fluoride with phosphate surroundings., Guo, Yali, Xing Xu, Shang Yanan, Gao Baoyu, Zhang Lei, Yue Qinyan, Qian Li, and Wang Zihang , J Hazard Mater, 2019 Nov 05, Volume 379, p.120634, (2019)

Mitochondrial-targeted near-infrared fluorescence probe for selective detection of fluoride ions in living cells., Xu, Xiaobo, Chen Wen, Yang Mei, Liu Xian-Jun, Wang Fenglin, Yu Ru-Qin, and Jiang Jian-Hui , Talanta, 2019 Nov 01, Volume 204, p.655-662, (2019)

Preparation and characterization of novel green synthesized iron-aluminum nanocomposite and studying its efficiency in fluoride removal., Mondal, Piyal, and Purkait Mihir Kumar , Chemosphere, 2019 Nov, Volume 235, p.391-402, (2019)