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Action of Polysulfide Ion on Simazine in Soil

  • Paul Castelfranco (a1) and Deborah B. Deutsch (a1)

Abstract and summary

Aqueous solutions of sodium and calcium polysulfides convert labeled simazine, 2-chloro-4,6-bis(ethylamino)-s-triazine-2,4,6-C14, to a chloroform insoluble, charcoal adsorbable derivative which is thought to be hydroxysimazine, 2-hydroxy-4,6-bis(ethylamino)-s-triazine-2,4,6-C14. In soil, calcium polysulfide accelerates the breakdown of simazine as shown by oat bioassay. These results suggest the possibility of using polysulfides to remove unwanted residues of chlorotriazine herbicides from crop lands.

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1. Castelfranco, P., and Brown, M. S. 1962. Purification and properties of the simazine-resistance factor of Zea mays . Weeds 10:131136.
2. Castelfranco, P., Foy, C. L., and Deutsch, Deborah B. 1961. Nonenzymatic detoxification of 2-chloro-4,6-bis(ethylamino)-s-triazine (simazine) by extracts of Zea mays . Weeds 9:580591.

Action of Polysulfide Ion on Simazine in Soil

  • Paul Castelfranco (a1) and Deborah B. Deutsch (a1)

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