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Movement of boron from ulexite and colemanite minerals in sapwood and heartwood of Cryptomeria japonica

  • Saip Nami KartalEmail author
  • Evren Terzi
  • Aysel Kanturk Figen
  • Tsuyoshi Yoshimura
Original Paper
  • 17 Downloads

Abstract

This study evaluated boron diffusion from raw boron minerals ulexite and colemanite with low water solubility in comparison to disodium octaborate tetrahydrate (DOT). Tests were conducted using sugi (Cryptomeria japonica (L.) f. D. Don) sapwood and heartwood blocks conditioned to 30, 60, and 90% target moisture content. The blocks were filled with the boron compounds through treatment holes and diffusion was observed at three assay zones across the blocks after 7, 30, 60 or 90-day incubation period at room temperatures. For comparison, ethylene glycol was also introduced into the holes to elevate boron diffusion. As expected, diffusion increased with increased moisture content and levels were higher at the 60% and 90% moisture levels compared to the 30% level. With some exceptions, boron levels did not follow consistent gradients with distance away from the treatment hole. Incorporation of ethylene glycol helped increase boron levels, even in heartwood blocks. Boron levels were higher from the ulexite source than from colemanite; however, DOT treatments resulted in the highest boron diffusion rates as a result of greater water solubility compared to both raw boron minerals. The results suggest that ulexite together with ethylene glycol may be useful in both sapwood and heartwood materials when kept at high moisture levels for extended periods.

Keywords

Boron Remedial Ulexite Colemanite DOT Distribution Sapwood Heartwood 

Notes

Acknowledgements

The authors acknowledge Eti Maden Operations General Directorate, Ankara, Turkey for the boron minerals and DOT used in the study.

References

  1. American Wood Protection Association (AWPA) (2012) Standard wet ashing procedures for preparing wood for chemical analyses. Standard A7–12. In: Book of standards. AWPA, Birmingham, Alabama, p 224Google Scholar
  2. Bhatia TK (2002) Use of borate-treated wood as part of an IPM approach for durable and sustainable construction. In: Jones SC, Zhai J, Robinson WMH (eds) Proceedings of the 4th international conference on urban pests, Pocahontas Press, Charleston, SC, USA, pp 269–276Google Scholar
  3. Cabrera Y, Morrell JJ (2009) Effect of wood moisture content and rod dosage on boron or fluoride movement through Douglas-fir heartwood. Forest Prod J 59(4):93–96Google Scholar
  4. Dietz MG, Schmidt EL (1987) Borate rods as an on-site remedial treatment for control of decay in wood decks. J Minn Acad Sci 53(2):22–26Google Scholar
  5. Fahlstrom GB (1964) Threshold values for wood preservatives. Forest Prod J 14:529–530Google Scholar
  6. Freitag CM, Morrell JJ (2002) Effect of glycol on movement of borate from fused borate rods. Forest Prod J 52(6):68–74Google Scholar
  7. Freitag CM, Morrell JJ (2005) Development of threshold values for boron and fluoride in non-soil contact applications. Forest Prod J 55(4):97–101Google Scholar
  8. Freitag CM, Morrell JJ, Love CS (2011) Long-term performance of fused borate rods for limiting internal decay in Douglas-fir utility poles. Holzforschung 65:429–434CrossRefGoogle Scholar
  9. Kartal SN (2009) Boron-based wood preservatives and their use. In: Chung MP (ed) Handbook on borates: chemistry, production and applications. Nova Science Publishers Inc., Hauppauge. ISBN 978-1-60741-822-1Google Scholar
  10. Kartal SN, Yoshimura T (2016) Borates: a natural way to protect wood against termites. Jpn Termite Control Assoc 1(165):7–10Google Scholar
  11. Koumbi-Mounanga T, Morris PI, Lee MJ, Saadat NN, Leblon B, Cooper PA (2015) Prediction and evaluation of borate distribution in Eastern black spruce (Picea mariana var. mariana) wood products. Wood Sci Technol 49:457–473CrossRefGoogle Scholar
  12. Lebow ST, Anthony RW (2012) Guide for use of wood preservatives in historic structures. General technical report FPL-GTR-217. Department of Agriculture, Forest Service, Forest Products Laboratory, Madison, WI, USA, p 59Google Scholar
  13. Lebow ST, Lebow PK, Halverson SA (2010) Penetration of boron from topically applied borate solutions. Forest Prod J 60(1):13–22CrossRefGoogle Scholar
  14. Lebow PK, Lebow ST, Halverson SA (2013) Boron diffusion in surface-treated framing lumber. Forest Prod J 63(7/8):275–282CrossRefGoogle Scholar
  15. Melo R, Cespedes J, Zaror C (1992) Diffusion of boron salts in heartwood specimens of Chilean-grown Eucalyptus globulus. Wood Prot 2(1):9–14Google Scholar
  16. Morrell JJ, Freitag CM (1995) Effect of wood moisture content on diffusion of boron-based biocides through Douglas-fir and western hemlock lumber. Forest Prod J 45(3):51–55Google Scholar
  17. Morrell JJ, Sexton CM, Preston AF (1990) Effect of moisture content of Douglas-fir heartwood on longitudinal diffusion of boron from fused borate rods. Forest Prod J 40(4):37–40Google Scholar
  18. Ra JB, Barnes HM, Conners TE (2001) Determination of boron diffusion coefficients in wood. Wood Fiber Sci 33(1):90–103Google Scholar
  19. Ra JB, Barnes HM, Conners TE (2002) Predicting boron diffusion in wood from surface sorption. Forest Prod J 52(1):67–70Google Scholar
  20. Terzi E, Kartal SN, Gerardin P, Ibanez CM, Yoshimura T (2017) Biological performance of particleboard incorporated with boron minerals. J For Res 28(1):195–203CrossRefGoogle Scholar
  21. Terzi E, Kartal SN, Pişkin S, Stark N, Figen AK, White RH (2018) Colemanite: a fire retardant candidate for wood plastic composites. BioResources 13(1):1491–1509CrossRefGoogle Scholar
  22. Williams LH, Amburgey TL (1987) Integrated protection against lyctid beetle infestations. IV. Resistance of boron-treated wood (Virola spp.) to insect and fungal attack. Forest Prod J 37(2):10–17Google Scholar

Copyright information

© Northeast Forestry University 2019

Authors and Affiliations

  • Saip Nami Kartal
    • 1
    Email author
  • Evren Terzi
    • 1
  • Aysel Kanturk Figen
    • 2
  • Tsuyoshi Yoshimura
    • 3
  1. 1.Department of Forest Biology and Wood Protection Technology Faculty of ForestryIstanbul University-CerrahpaşaBahcekoy, IstanbulTurkey
  2. 2.Department of Chemical Engineering, Faculty of Chemistry-MetallurgicalYıldız Technical UniversityIstanbulTurkey
  3. 3.Laboratory of Innovative Humano-HabitabilityResearch Institute for Sustainable Humanosphere (RISH), Kyoto UniversityUji, KyotoJapan

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