Inhibition of light-induced yellowing of high-yield pulp by sodium hydroxymethylphosphinate

J. X. Guo, D. G. Gray

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Sodium hydroxymethylphosphinate was prepared from hypophosphorous acid and formaldehyde. Characterization of this compound and application to high-yield bleached chemithermomechanical pulps as a potential brightness stabilizer are described. The results show that sodium hydroxymethylphosphinate has several desirable characteristics; it is water-soluble, colourless, odourless and stable in storage and can inhibit the light-induced yellowing of high-yield pulp to a moderate extent. The inhibition of light-induced yellowing of chemithermomechanical pulp handsheets impregnated with sodium hydroxymethylphosphinate was characterized by UV-visible diffuse reflectance spectroscopy and spectrofluorimetry.

Original languageEnglish (US)
Pages (from-to)J64-J40
JournalJournal of Pulp and Paper Science
Volume22
Issue number2
StatePublished - Feb 1 1996

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Media Technology

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