A NEW BASICITY SCALE BASED ON REDOX POTENTIAL OF CR6+/CR3+ IN ALKALI SILICATE MELTS

被引：14

作者：

DENZUMI, S ^{[1
]}

YAMADA, T ^{[1
]}

KAWAMURA, K ^{[1
]}

YOKOKAWA, T ^{[1
]}

机构：

[1] HOKKAIDO UNIV,FAC SCI,DEPT CHEM,SAPPORO,HOKKAIDO 060,JAPAN

来源：

MATERIALS TRANSACTIONS JIM | 1994年 / 35卷 / 09期

关键词：

REDOX OF CR6+/CR3+; BASICITY SCALE; REDOX IN SILICATE MELTS;

D O I：

10.2320/matertrans1989.35.591

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Differential Pulse Voltammetry was applied to measure the redox potential of the Cr6+/Cr3+ pair in alkali silicates. After it was carried out in the Na2O-SiO2 system, where Na2O activity had been previously measured and the basicity was defined in such terms, it was extended to the xNa2O(1-x)K2O 2SiO2 quasi-binary and M2O 2SiO2 (M = Li, Rb and Cs) systems. The redox significantly depends on the basicity and it seems promising that a basicity scale based on this redox potential may be applicable to alkali silicate melts in general.

引用

页码：591 / 595

页数：5

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