ON THE CHEMISTRY OF KANEMITE [NAHSI2O5.3 H2O](X)

被引：18

作者：

WIEKER, W ^{[1
]}

HEIDEMANN, D ^{[1
]}

EBERT, R ^{[1
]}

TAPPER, A ^{[1
]}

机构：

[1] HOECHST AG,D-50351 HURTH,GERMANY

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1995年 / 621卷 / 10期

关键词：

PROTONATED SODIUM LAYER SILICATE HYDRATE; SI-29-; NA-23- AND H-1-MAS-NMR; DEHYDRATION;

D O I：

10.1002/zaac.19956211029

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Starting from delta-Na2Si2O5 Kanemit was prepared by a direct exchange of Na+ by H+ in water containing reaction mixtures. By Si-29-, Na-23- and H-1-MAS-NMR investigations Kanemit was characterized as a layersilicate [NaHSi2O5 ... 3 H2O]. By thermal treatment as well as by dehydration at room temperature under vacuum conditions a monohydrate is formed in which the layerstructure remains nearly unchanged. At temperatures between 100 and 110 degrees C under normal conditions a hydrate phase of the composition [NaHSi2O5 . 0.25 H2O](x) is prepared in which a changed silicate-layerstructure exists.

引用

页码：1779 / 1784

页数：6

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