INTERACTIONS AT THE ORGANIC INORGANIC INTERFACE - BINDING MOTIFS FOR PHOSPHONATES AT THE SURFACE OF BARITE CRYSTALS

被引：140

作者：

BLACK, SN ^{[1
]}

BROMLEY, LA ^{[1
]}

COTTIER, D ^{[1
]}

DAVEY, RJ ^{[1
]}

DOBBS, B ^{[1
]}

ROUT, JE ^{[1
]}

机构：

[1] ICI CHEM & POLYMERS LTD, DEPT RES & TECHNOL, HEATH, RUNCORN WA7 4QD, CHESHIRE, ENGLAND

来源：

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1991年 / 87卷 / 20期

关键词：

D O I：

10.1039/ft9918703409

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Synthetic barite crystals, prepared under conditions chosen to mimic those encountered in off-shore oil fields, have a simple rhombic plate-like morphology in which large (001) faces are bound by smaller (210) sides. The addition of certain stereochemically related diphosphonates produces a characteristic morphological change leading to disc and elliptical morphologies. These results are shown to be consistent with a binding model in which the diphosphonate ion replaces two sulphates in the (011) surface. The implications of these results to the case of gypsum precipitation is also considered.

引用

页码：3409 / 3414

页数：6

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