Low concentration phosphine fumigation method

Details Low concentration phosphine fumigation method Low concentration phosphine fumigation method

1993-11-22

1995-04-04

Robinson, Allen J.

Drug, bio-affecting and body treating compositions

Inorganic active ingredient containing

Phosphorus or phosphorus compound

424602, 424606, 424700, 43125, 422 32, A01N 5926, A01N 5904, A01M 1300

Patent

active

054035970

ABSTRACT:
A method for fumigating an enclosed structure includes release of sufficient phosphine into the enclosed structure to maintain an average concentration of between about 50 ppm and 500 ppm phosphine. Concurrently, sufficient carbon dioxide is released into the enclosed structure to maintain an average concentration of between about 4% and 10% carbon dioxide, and a temperature of between about 30 degrees Celsius to about 40 degrees Celsius is maintained in the enclosed structure to enhance fumigation effectiveness.

REFERENCES:
patent: 2826527 (1958-03-01), Huter
patent: 4814154 (1989-03-01), Doernemann et al.
patent: 4989363 (1991-02-01), Doernemann
patent: 4998377 (1991-03-01), Tsutsumi et al.
patent: 5015475 (1991-05-01), Kapp et al.
Kashi et al., "The toxic Action of Phosphine:Role of Carbon dioxide on the Toxicity of Phosphine to Sitophilus granarius (L.) and Tribolium Confusum DuVal", J. Stored Prod. Res., vol. 11(1), 1975, pp. 9-15.
Rajendran et al., "The toxic Action of Phosphine in Combination with Some alkyl Halide Fumigants and Carbondioxide Against the eggs of Tribolium Castaneum Herbst (Coleoptera:Tenebrionidae)", J. Stored Prod. Res., vol. 25(4), 1989, pp. 225-230.

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