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Hydrogen does not just insert itself physically into the metal. Although only a few metals form stoichiometric hydrides with predominantly ionic character, most of them (and all those involved in hydrogen/hydride storage) form some type of bond, generally involving saturation of the hydrogen 1s orbital with ionic or polar covalent bonding. Helium simply ...


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Until now, I found the following. Bustamante, P.; Peña, M. A.; Barra, J.: The modified extended Hansen method to determine partial solubility parameters of drugs containing a single hydrogen bonding group and their sodium derivatives: benzoic acid/Na and ibuprofen/Na. Int. J. Pharm. 194 (2000) 117-124: benzoic acid/Na, ibuprofen/Na Barra, J.; Peña, M. A.; ...


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