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Wood Preservative Effectiveness of Metallic Naphthenates. (1). Laboratory Evaluation of the Chemicals as Fungicidal and Termiticidal Agents.
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- TSUNODA Kunio
- Wood Research Institute, Kyoto University
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- SAKURAI Makoto
- Chemical Division, Shinto Paint Co., Ltd.
Bibliographic Information
- Other Title
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- ナフテン酸金属塩の木材保存性能 （１） 室内試験による防腐・防蟻性能評価
- Laboratory Evaluation of the Chemicals as Fungicidal and Termiticidal Agents
- 室内試験による防腐・防蟻性能評価
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Description
A series of metallic naphthenates were tested for their fungicidal and termiticidal effectiveness in the laboratory. Copper naphthenate peformed better than zinc naphthenate in wood decay control.<BR>In vacuum/soak impregnation treatment [JIS A 9301 (1976)], copper and zinc naphthenates could satisfactorily depress decay fungi at retentions of 0.5 and 1.0 kg/m3 as an elemental metal, respectively [JIS A 9302 (1976) ]. The former chemical proved effective in protecting timber from decay at 2.1kg/m3 even after the recently amended severer leaching schedules [JIS A 9201 (1991)]. When applied to brush treatment, copper naphthenate was effective at 2% Cu and 3%Cu concentrations, respectively after weathering of JWPA Standard 1 (1979) and the severer weathering [amended JWPA Standard 1 (1989) ], while zinc naphthenate did not perform well even at 4%Zn after the new weathering scheme. Noticeable effects of acid values were not shown for copper naphthenates, but for zinc naphthenates in brush application.<BR>As for the termiticidal effects of the test chemicals, copper naphthenate was efficacious at 1% Cu in wood block test [JWPA Standard 11 (1) (1981)] in which pine sapwood blocks treated with the chemicals by brushing were exposed to Formosan subterranean termites for three weeks. Zinc compounds were less effective, and 2%Zn was required to control termite attacks.
Journal
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- MOKUZAI HOZON (Wood Protection)
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MOKUZAI HOZON (Wood Protection) 19 (6), 272-280, 1993
JAPAN WOOD PRESERVING ASSOCIATION
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Details 詳細情報について
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- CRID
- 1390282679271539712
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- NII Article ID
- 130000871722
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- ISSN
- 18840116
- 02879255
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- OpenAIRE
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- Abstract License Flag
- Disallowed
