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

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)

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)

Preliminary investigation of aluminium fluoride complexes in aqueous solutions with CE/ESI-MS and CE/ICP-MS., Tanaka, Miho, Hoshino Yoko, and Nakamoto Daisuke , Rapid Commun Mass Spectrom, 2019 May 30, (2019)

Restraining fluoride loss from NaYF:Yb,Er upconverting nanoparticles in aqueous environments using crosslinked poly(acrylic acid)/poly(allylamine hydrochloride) multilayers., Palo, Emilia, Salomäki Mikko, and Lastusaari Mika , J Colloid Interface Sci, 2019 Mar 07, Volume 538, p.320-326, (2019)

Preparation of -Phase Poly(vinylidene fluoride) Films on Aluminum Substrate with the Addition of Hydrated Metal Salts., Hwangbo, Seung, Kang Jong-Min, Min Woo-Min, Lee Jun-Ho, and Hwang Kyu-Seog , J Nanosci Nanotechnol, 2019 Mar 01, Volume 19, Issue 3, p.1824-1828, (2019)

Coagulation removal of fluoride by zirconium tetrachloride: Performance evaluation and mechanism analysis., Gan, Yonghai, Wang Xiaomeng, Zhang Li, Wu Bingdang, Zhang Guoyang, and Zhang Shujuan , Chemosphere, 2019 Mar, Volume 218, p.860-868, (2019)

Enhanced capacity of fluoride scavenging from contaminated water by nano-architectural reorientation of cerium-incorporated hydrous iron oxide with graphene oxide., Mukhopadhyay, Kankan, Ghosh Uday Chand, and Sasikumar Palani , Environ Sci Pollut Res Int, 2019 Jul 06, (2019)

Defluoridation investigation of Yttrium by laminated Y-Zr-Al tri-metal nanocomposite and analysis of the fluoride sorption mechanism., Jiang, Hualing, Li Xueqin, Tian Lei, Wang Tao, Wang Qi, Niu Pingping, Chen Pinghua, and Luo Xubiao , Sci Total Environ, 2019 Jan 15, Volume 648, p.1342-1353, (2019)

Fluoride at waste oyster shell surfaces - Role of magnesium., Chang, Hannah Y. H., Kuo Yu-Lin, and Liu J C. , Sci Total Environ, 2019 Feb 20, Volume 652, p.1331-1338, (2019)

A High-Pressure Praseodymium Fluoride Borate Linking Multiple Structural Features of Apatite-Type Compounds., Glätzle, Matthias, Pitscheider Almut, Oeckler Oliver, Wurst Klaus, and Huppertz Hubert , Chemistry, 2019 Feb 01, Volume 25, Issue 7, p.1767-1772, (2019)

Efficacy of Yttrium (III) Fluoride Nanoparticles in Orthodontic Bonding., Asiry, Moshabab A., Alshahrani Ibrahim, Alqahtani Nasser D., and Durgesh Bangalore H. , J Nanosci Nanotechnol, 2019 Feb 01, Volume 19, Issue 2, p.1105-1110, (2019)