Wood preservative compositions and a process for their productio

Details Wood preservative compositions and a process for their productio Wood preservative compositions and a process for their productio

1987-04-23

1989-02-14

Locker, Howard J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

106 1505, 252607, 423595, 423602, 423604, 424133, 424137, 424140, C01G 3714, C01G 2802, C09K 1500, A01N 5922

Patent

active

048044946

ABSTRACT:
A copper arsenate composition suitable for incorporation in a copper/chrome/arsenic wood preservative composition is made by reacting copper metal with a source of 5-valent arsenic such as arsenic acid under the oxidizing influence of hydrogen peroxide. The quantity of arsenic acid used may be made consistent with the arsenic to copper ratio required in the final wood preservative composition which may be made up by including a suitable source of chromium with the copper arsenate reaction product.

REFERENCES:
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patent: 2313589 (1943-03-01), Siebert et al.
patent: 2573252 (1951-10-01), Farber
patent: 3080212 (1963-03-01), Oberley et al.
patent: 3957494 (1976-05-01), Oberley
patent: 4038086 (1977-07-01), Clarke et al.
patent: 4103000 (1978-07-01), Hartford
patent: 4218249 (1980-08-01), Hill
patent: 4247329 (1981-01-01), Mills
patent: 4357261 (1982-11-01), Takahashi et al.
patent: 4622248 (1986-11-01), Leach et al.
Hawley, G. 1981, The Condensed Chemical Dictionary, 10th edition, Van Nostrand Reinhold Co., New York, p. 545.

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