Facilitated Transport of Formaldehyde across Hydrogensulfite Ion Form Anion-Exchange Membrane

Manabu Igawa*, Yuji Surisawa, Hiroshi Okochi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Formaldehyde was transported efficiently across hydrogensulfite ion form anion-exchange membrane via the adduct formation reaction. The transport of formaldehyde was facilitated but onlywhen the concentration of formaldehyde in the source phase solution was low. The ion-exchange capacity of the membrane was saturated by formaldehyde distributed as its adduct in a low source phase concentration because the adduct formation constant was high. The transport of formaldehyde can be further facilitated and formaldehyde was transported against the concentration gradient with the counter-transport of hydrogensulfite ion when hydrogensulfite salt was added to the receiving phase.

Original languageEnglish
Pages (from-to)1295-1297
Number of pages3
Issue number11
Publication statusPublished - 1993
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)


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