Fluorides stability

Fluoride, Fluoride Is contained In water and In the diet (22,23) Also, fluoride stabilizes the bone crystal (24) and has been shown to decrease bone resorption (25), For these reasons, fluoride has been recommended for the treatment for osteoporosis (26-28), The Importance of the role of fluoride on maintaining the normal bone structure Is also Indicated by a survey which showed that the Incidence of osteoporosis was lower In naturally high fluoride areas than In areas where the fluoride content of the drinking water was low (29) This observation would Indicate that the Intake of certain amounts of fluoride throughout life may be necessary for the maintenance of the normal skeleton, and that fluoride may protect the skeleton from the development of bone loss which leads to osteoporosis with advancing age, particularly In females. 

Hasegawa, R., Kobayashi, M. and Tadokoro, H. Molecular conformation and packing of poly(vinylidene fluoride). Stability of three crystalline forms and the effect of high pressure, Polymer J. 3, 591 (1972) Hasegawa, R., Takahashi, Y., Chatani, Y. and Tadokoro, H. Crystal structures of three crystalline forms of poly(vinylidene fluoride). Polymer J. 3, 600 (1972)... 

Fluoride has certain physiological properties [31,32] of great importance to human health. The role of fluoride in the process of mineralization of certain tissues is important. At low concentrations fluoride stabilizes the skeletal system by increasing the size of apatite crystals and reducing their solubility [12]. Although beneficial effects can be demonstrated at low concentrations, it has detrimental effects when concentrations exceed the threshold [33],... 

Rare-earth fluoride stabilized zirconia, LnFSZ... 

Reaction conditions, compositions and lattice constants of cubic rare-earth fluoride stabilized zirconia... 

Fig. 22. Arrhenius plots of the electrical conductivities of several rare-earth fluoride stabilized zirconias measured under an oxygen partial pressure of 1.33 x 10 1 Pa.

Fig. 23. The transport number of various rare-earth fluoride stabilized zirconias. Oxide ion transport number, tO2 --------- Electron transport number, re-------- ...

Fluoride stabilizes the higher oxidation states of the actinides. 

Munze (19) has used a Born-type equation to calculate stability constants of In(III) and An(III) complexes of carboxylates as well as other ligands which agreed well with experimental values. His approach was modified by allowing the dielectric constant to be a parameter (the "effective" dielectric constant, De) in an analysis of fluoride complexation by M(II), M(III) and M(IV) cations (20). A value of De = 57 was found satisfactory to calculate trivalent metal fluoride stability constants which agreed with experimental values for Ln(III), An(III) and group IIIB cations (except Al(III). Subsequently, the equation was used... 

PEG-25 PABA stabilizer, lipstick Behenyl erucate Bis-diglyceryl polyacyladipate-2 Carnauba synthetic Cetearyl candelillate stabilizer, liq. detergents Ethylene/MA copolymer stabilizer, liq. sulfur trioxide Methanesulfonyl chloride Nitrosyl fluoride stabilizer, liq.-to-solid powders Cyclodextrin p-Cyclodextrin Hydroxypropyl-a-cyclodextrin Hydroxypropyl-p-cyclodextrin Hydroxypropyl-y-cyclodextrin stabilizer, lotions Lauramide DEA stabilizer, low-fat meats Curdlan... 

R. Hasepwa, M. Kohayashi, and H. Thdokoio, Molecular conformation and packing oi poty(vinylidene fluoride Stability of three aystaUinc forms and the effect of hi prcaiutc. Polymer J. 5591 (1972). 

Previous assessments of lanthanide fluoride stability constants appropriate at 25 C and zero ionic strength indicate that logp/J is on the order of 4 or less for all lanthanides. The works of Walker and Choppin (1967) and Bilal and co-workers (Bilal et al. 1979, Bilal and Becker 1979, Bilal and Koss 1980, Bilal 1980, Bilal and Becker 1980, Becker... 

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