Chromated copper arsenate wood preservative compositions

B - Operations – Transporting – 27 – K

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6/225, 6/18.5

B27K 3/28 (2006.01) C09D 5/14 (2006.01)

Patent

CA 1041421

Abstract of the Disclosure Chromated copper arsentate wood preserving solutions in which the ratio of hexavalent chromium to trivalent chromium in the solution is between about 4.0:1.0 to about 1.0:1.0 give improved penetration into the wood, better reten- tion of preservative in the wood, and improved stability of the treating solu- tion. The solutions contain an acid to maintain the required pH, prevent corrosion, and further improve t? solution stability.

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