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根据对含水钠长石玻璃的FTIR和Raman光谱研究,认为水在钠长石熔体中的溶解作用同时存在两种机制:一方面水与Al-O°-Al结构单元反应发生解聚作用并生成Q3Al-OH,造成FTIR及Raman光谱中4500和900cm-1谱峰的出现;另一方面同时发生水中的H+与钠长石熔体中的Na+的置换作用.在溶解初期,水的溶解机制以生成Al-OH为主,随着水含量的升高,H+与Na+之间的置换作用变得愈加重要.水在钠长石熔体中的溶解作用可表示为:H2O+3NaAISi3O8=2NaAl(OH)Si3O7.5+HAlSi3O8+NaOH.
According to the FTIR and Raman spectra of aqueous sodium-feldspar glass, it is considered that there are two mechanisms for the dissolution of water in the albite melt. On the one hand, water and the Al-O ° -Al structural unit react to depolymerize Resulting in the appearance of 4500 and 900 cm-1 peaks in the FTIR and Raman spectra, and at the same time the simultaneous replacement of H + in the water with Na + in the albite melt.In the initial stage of dissolution, the dissolution mechanism of water With the formation of Al-OH, the substitution between H + and Na + becomes more and more important as the water content increases.The dissolution of water in albite melt can be expressed as: H2O + 3NaAISi3O8 = 2NaAl ( OH) Si3O7.5 + HAlSi3O8 + NaOH.