A VIBRATION SPECTROSCOPIC STUDY ON THE INTERACTION BETWEEN SOME SULFIDE MINERALS AND TRIS-(2-CYANOETHYL)PHOSPHINE IN AQUEOUS-SOLUTION

Authors
VALLI M MALMENSTEN B PERSSON I
Citation
M. Valli et al., A VIBRATION SPECTROSCOPIC STUDY ON THE INTERACTION BETWEEN SOME SULFIDE MINERALS AND TRIS-(2-CYANOETHYL)PHOSPHINE IN AQUEOUS-SOLUTION, Colloids and surfaces. A, Physicochemical and engineering aspects, 99(2-3), 1995, pp. 201-205
Citations number
7
Categorie Soggetti
Chemistry Physical
Journal title
Colloids and surfaces. A, Physicochemical and engineering aspects → ACNP
ISSN journal
09277757
Volume
99
Issue
2-3
Year of publication
1995
Pages
201 - 205
Database
ISI
SICI code
0927-7757(1995)99:2-3<201:AVSSOT>2.0.ZU;2-R
Abstract
The surfaces of a number of sulphide minerals and synthetic metal sulp hides treated with an aqueous solution of tris-(2-cyanoethyl)phosphine have been analysed by means of diffuse reflectance infra-red Fourier transform (DRIFT) spectroscopy. Tris-(2-cyanoethyl)phosphine is chemis orbed through the phosphorus atom to the surfaces of silver(I) sulphid e and chalcocite, natural Cu2S, while it is adsorbed through the nitro gen atom(s) to synthetic cadmium sulphide. No tris-(2-cyanoethyl)phosp hine is adsorbed on the natural sulphide minerals galena, pyrite and s phalerite or on synthetic silver(I) and cadmium sulphide precipitated in an excess of sulphide ions, after treatment in aqueous slurries.