硫酸盐固体电解质探头与对硫酸铜的热力学研究

来源期刊：中南大学学报(自然科学版)1987年第5期

论文作者：杨松青

文章页码：579 - 584

关键词：硫酸盐； 固体电解质； 气体探测器； 浓度； 氧比硫； 硫酸铜； 分解反应； 化学热力学；二氧化碳

Key words：sulfate； solid electrolyte； gas detector； concentration； sulfur oxide； copper sulfate； decomposition reaction； chemical thermodynamics；sukfur dioxide

摘    要：本研究的目的是为了发展一种在线测定的探测器,测定工业生产中常见的二氧化硫的浓度.首先研究了Ag₂SO₄-Li₂SO₄体系。在高达10%的二氧化硫浓度下,该体系的电导率仍与浓度无关.电导率与相图的对应关系很好.在氧存在的条件下可用这种电解质测定含量在10%以下的二氧化硫或三氧化硫·用于硫酸铜的分解研究其所得结果与文献中其他方法比较,相差在3%以内.

Abstract: The goal of this study is to develop an on-line detector for the measurement of SO₂ in industrial processes. At first the Ag₂SO₄-Li₂SO₄ system was studied. Up to 10% of SO₂ the electric conductivity of the system is still independent of the con- centration of SO₂ and there is a good correspondence between the electric conductivity and the phase diagram of the syetem. The sulfate electrolyte may be used for the concentration measurements of SO₂ or SO₃ if their concentration is less than 10% and with enongh oxygen in existence. The decomposition of copper sulfate was also studied with the electrolytes, compared with reference data, the differences are within 3%.