| Main Title |
Synergistic wood preservatives for replacement of CCA |
| Author |
Nicholas, Darrel D. ;
Schultz, T. P. ;
Kim, M. G.
|
| Other Authors |
|
| CORP Author |
Mississippi State Univ., Mississippi State. Forest Products Lab.;National Risk Management Research Lab., Cincinnati, OH. Office of Research and Development.;Department of Agriculture, Washington, DC. |
| Publisher |
U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, |
| Year Published |
1999 |
| Report Number |
EPA/600/R-99/024 ; PB99-153637; EPA-R-821788-01-1 |
| Stock Number |
PB99-153637 |
| OCLC Number |
43459375 |
| Subjects |
Wood preservatives--Environmental aspects ;
Waste minimization ;
Wood products--Manufacturers--Technological innovations ;
Chromated copper arsenate--Environmental aspects
|
| Additional Subjects |
Wood preservatives ;
Materials replacement ;
Tests ;
Water repellents ;
Waterproofing ;
Pentachlorphenol ;
Biocides ;
Environmental chemical substitutes ;
Exposure ;
Degradation ;
Fungi ;
Termites ;
Leaching ;
CCA(Chromated Copper Arsenate) ;
Chromated Copper Arsenate ;
Efficacy ;
Didecyldimethylammonium chloride ;
Chlorothalonil ;
Tribromophenol ;
Sodium omadine
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| ESAD |
EPA 600-R-99-024 |
|
Region 10 Library/Seattle,WA |
02/23/2000 |
| NTIS |
PB99-153637 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
xvii, 117 p. : ill. ; 28 cm. |
| Abstract |
The objective of this project was to evaluate the potential synergistic combinations of environmentally-safe biocides as wood preservatives. Didecyldimethylammonium chloride (DDAC) was combined with either chlorothalonil (CTN), tribromophenol (TBP) or sodium omadine (NaO) to provide the syntergistic mixtures. A total of five systems were examined; one oil-borne (DDAC:CTN) and four water-borne (oil-in-water emulsions) mixtures, including DDAC:NaO with a water repellant. Wood treated with these preservatives was evaluated in both soil contact and above-ground exposure, with CCA and pentachlorophenol (penta) treated wood used as positive controls. The treated wood was evaluated for both biocide efficacy and depletion. The water-borne DDAC:TBP and DDAC:NaO formulations performed poorly in the field tests and, consequently, are not viable wood preservative systems. However, the addition of a water repellent to the DDAC:NaO system greatly improve the performance in above-ground tests, suggesting that this may be a good preservative for this application. The oil-borne DDAC:CTN formulation is performing very well and may be viable wood preservation system. The water-borne DDAC:CTN formulation is performing moderately well at this time but appears to suffer from excessive CTN leaching; this deficiency probably can be corrected with a modified formulation. |
| Notes |
"EPA/600/R-99/024." "February 1999." "Project CR 821788-01-1." "Project officer: Paul Randall." "This study was conducted in cooperation with U.S. Department of Agriculture." |
