Gewinnung und Verhalten der Amalgame der Metalle der IVa- bis VIa-Gruppe

Autor:	Gerhard Jangg
Rok vydání:	1977
Předmět:	Aqueous solution Oxalic acid Inorganic chemistry Oxide chemistry.chemical_element Halide General Chemistry Sodium amalgam Mercury (element) Metal chemistry.chemical_compound chemistry Transition metal visual_art visual_art.visual_art_medium
Zdroj:	Monatshefte f�r Chemie. 108:791-798
ISSN:	1434-4475 0026-9247
DOI:	10.1007/bf00898042
Popis:	The usual methods for the production of amalgams—dissolving of metals in mercury, or electrolytic deposition on mercury—are not suitable for the preparation of amalgams of transition metals. However amalgams of the transitions elements can be prepared by reduction of their dry halides with sodium amalgam. These amalgams are unstable against aqueous solutions under oxidising conditions and decompose by dewetting of the suspended metal particles. The stability can be improved by addition of components, e.g. oxalic acid or HF to the solution, which prevent the formation of oxide layers on the dewetted metal particles. By using such solutions in processing the reaction products of the halides with sodium amalgam the amalgams of the transition elements can be obtained without decomposition.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7717d126a75f73d36567d4f2fe72db75 https://doi.org/10.1007/bf00898042 Zobrazit plný text záznamu Full text from SpringerLink