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Effect of compression wood on leaching of chromium, copper, and arsenic from CCA-C treated red pine (Pinus resinosa Ait.)Author(s): S. Nami Kartal; Stan Lebow
Source: [The International Research Group on Wood Preservation. Section 3, Wood Protecting Chemicals : 31st annual meeting, Kona, Hawaii, USA, 14-19 May 2000. Stockholm, Sweden : IRG Secretariat, 2000].:9 p. : ill.
Publication Series: Miscellaneous Publication
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DescriptionIn this study, the effect of compression wood formation on the release rate of chromium, copper, and arsenic elements from red pine (Pinus resinosa Ait) was investigated. Wood blocks from red pine containing compression and normal wood portions were treated with a 1.0% CCA-C solution and were then allowed to fix at 23 * 2*C (74 * 4*F) for 0, 6, 24, 48, 96, 192, and 336 hours. After each fixation period, the blocks removed from the conditioning room were subjected to 336 hours of leaching. Less chromium and copper elements were released from the compression wood blocks. For chromium, the biggest effect occurred after the 192- and 336-hour fixation periods. In the normal wood blocks fixed for 336 hours, the average chromium release rate after 6 hours of leaching was almost five times greater than that of blocks containing compression wood. Copper and arsenic release was also affected by compression wood, but for these two elements, the effect diminished during the later stages of fixation.
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CitationKartal, S. Nami.; Lebow, Stan. 2000. Effect of compression wood on leaching of chromium, copper, and arsenic from CCA-C treated red pine (Pinus resinosa Ait.). [The International Research Group on Wood Preservation. Section 3, Wood Protecting Chemicals : 31st annual meeting, Kona, Hawaii, USA, 14-19 May 2000. Stockholm, Sweden : IRG Secretariat, 2000].:9 p. : ill.
KeywordsPinus resinosa, Copper chrome arsenates, Chromium, Copper, Arsenic, Reaction wood, Leaching
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