Further development of selective dyeing method for detecting chrysotile asbestos in building materials

Y. Oke, N. Yamasaki, N. Maeta, H. Fujimaki, T. Hashida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Extensive usage of chrysotile asbestos has resulted in the remains of large numbers of chrysotile asbestos-containing buildings to be surveyed. We have recently developed a simple dyeing method for detecting chrysotile asbestos in building materials, which involves pretreatment with calcium-chelating agent and dyeing treatment with magnesium-chelating organic dyes. In this study, we further developed a method which eliminates dyed asbestos substitutes containing magnesium, potentially present in building materials. In the new method, post-treatment with formic acid was conducted to dissolve the non-chrysotile asbestos materials in order to delineate dyed chrysotile asbestos. The calcium-masking process was also shown to be an essential process even when the post-treatment was conducted. It was shown that the new method developed in this study may enable us to dye chrysotile asbestos only without detecting asbestos substitutes in building materials.

Original languageEnglish
Title of host publicationWater Dynamics - 5th International Workshop on Water Dynamics
Pages58-61
Number of pages4
DOIs
Publication statusPublished - 2008
Event5th International Workshop on Water Dynamics - Sendai, Japan
Duration: 2007 Sep 252007 Sep 27

Publication series

NameAIP Conference Proceedings
Volume987
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other5th International Workshop on Water Dynamics
Country/TerritoryJapan
CitySendai
Period07/9/2507/9/27

Keywords

  • Asbestos
  • Calcium-masking
  • Chelate
  • Chrysotile
  • Detection method
  • Dyeing method
  • Formic acid
  • Magnesium-chelating dyes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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