Influence of polyethylenimine on the precipitation process of lead sulfate crystals

Akio Katayama*, Takahiro Sakuma, Izumi Hirasawa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


Crystals of lead sulfate were precipitated in a solution of polyethylenimine (PEI) using a double-jet crystallizer. PEI controlled both the nucleation rate and the growth rate, and enabled to produce fine monodispersed crystals. This effect is considered to be due to a complexation between PEI and lead ion. The on-line measurement of the variation in the lead ion concentration indicated PEI lost its effect when a certain amount of reactants was supplied. And the duration in which PEI could control the precipitation rate and the amount of PEI had a strong correlation. In addition, it was suggested that their relationship could be utilized in order to produce monodispersed particles.

Original languageEnglish
Pages (from-to)500-506
Number of pages7
JournalJournal of Crystal Growth
Issue number3-4
Publication statusPublished - 2004 Jan 9


  • A1. Growth models
  • A1. Impurities
  • A1. Nucleation
  • A2. Growth from solutions
  • B1. Inorganic compounds
  • B1. Polyethylenimine

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry


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