Sorption and transport of sulfate species in an anion exchange membrane in contact with Na2SO4-H2SO4 solutions determined by radiotracers and Raman spectroscopy

被引：0

作者：

Hasdou, A ^{[1
]}

Pourcelly, G ^{[1
]}

Huguet, P ^{[1
]}

Bribes, JL ^{[1
]}

Sandeaux, J ^{[1
]}

Gavach, C ^{[1
]}

Dubouis, M ^{[1
]}

机构：

[1] ENSEEG,INPG,CTR RECH ELECTROCHIM MINERALE & GENIE PROCEDES,F-38042 ST MARTIN DHERES,FRANCE

来源：

NEW JOURNAL OF CHEMISTRY | 1996年 / 20卷 / 05期

关键词：

anion exchange membrane; Raman spectroscopy; radiotracers; sulfuric acid;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The ionic composition of a polymeric anion exchange membrane and the transport number of sulfate ions through this membrane are determined when it is in contact with mixed Na2SO4-H2SO4 solutions. The amount of sorbed species and the transport numbers are obtained by the radiotracer method. Sorption results combined with those of Raman spectroscopy allow the ionic composition of the membrane material to be obtained. The sulfate/hydrogen sulfate ratio increases with the salt content of the equilibrating solution. For very low acid contents, the transport number of the sulfate ion reaches unity while it does not exceed 0.85 for the same acid concentrations in the absence of sodium sulfate.

引用

页码：515 / 521

页数：7

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