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
收藏
页码：1779 / 1784
页数：6
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