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Salzkryoskopie I. Eine Apparatur zur Bestimmung von Ionengewichten mit kleinen Substanzmengen
Author(s) -
Parissakis G.,
Schwarzenbach G.
Publication year - 1958
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19580410712
Subject(s) - chemistry , ethylenediamine , eutectic system , salt (chemistry) , solvent , counterion , nuclear chemistry , inorganic chemistry , ion , organic chemistry , alloy
For the cryoscopic investigation of salt‐like materials it is of great advantage to use, as solvents, melts of salts, transitition points of salt hydrates or eutectic mixtures. An apparatus is described allowing such measurements to be carried out with small amounts of substance of the order of 10 −3 formula weights. Data are given for NaCl, NaOH, ZnSO 4 , Na 2 CdY, Na 2 CoY, [Ag 2 (en) 2 ]SO 4 («en» = ethylendiamine; Y 4− = anion of EDTA), using Na 2 SO 4 , 10H 2 O as solvent. The ethylenediamine‐silver complex is shown to contain the binuclear cation [Ag 2 (en) 2 ] 2+ , in agreement with the result of equilibria measurements carried out earlier.