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Degradation of Mustard on Moist Sand, Asphalt, and Limestone Using 13C SSMAS NMR

C. A. Brevett / C. L. Cook / R. G. Nickol / K. B. Sumpter / M. R. Hall

The degradation of mustard bis(2-chloroethyl) sulfide on moist sand, limestone, and asphalt at 22 degrees C was followed using 13C solid state magic angle spinning (SSMAS) NMR and observed to form the sulfonium ion H-2TG and thiodiglycol within 8 weeks. The initially-formed H-2TG sulfonium ion was observed to decompose to form TDG over a period of 6 months. Mustard did not degrade on ambient sand or limestone for 12 months, nor on asphalt in 12 months. The lack of reaction on the ambient substrates, plus the formation of the same products that were seen in water and moist soil, suggested that the sand, asphalt, and limestone functioned as chemically inert surfaces on which the reaction between mustard and water occurred.

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Degradation of Mustard on Moist Sand, Asphalt, and Limestone Using 13C SSMAS NMR

C. A. Brevett / C. L. Cook / R. G. Nickol / K. B. Sumpter / M. R. Hall

The degradation of mustard bis(2-chloroethyl) sulfide on moist sand, limestone, and asphalt at 22 degrees C was followed using 13C solid state magic angle spinning (SSMAS) NMR and observed to form the sulfonium ion H-2TG and thiodiglycol within 8 weeks. The initially-formed H-2TG sulfonium ion was observed to decompose to form TDG over a period of 6 months. Mustard did not degrade on ambient sand or limestone for 12 months, nor on asphalt in 12 months. The lack of reaction on the ambient substrates, plus the formation of the same products that were seen in water and moist soil, suggested that the sand, asphalt, and limestone functioned as chemically inert surfaces on which the reaction between mustard and water occurred.

Degradation of Mustard on Moist Sand, Asphalt, and Limestone Using 13C SSMAS NMR

C. A. Brevett / C. L. Cook / R. G. Nickol / K. B. Sumpter / M. R. Hall

The degradation of mustard bis(2-chloroethyl) sulfide on moist sand, limestone, and asphalt at 22 degrees C was followed using 13C solid state magic angle spinning (SSMAS) NMR and observed to form the sulfonium ion H-2TG and thiodiglycol within 8 weeks. The initially-formed H-2TG sulfonium ion was observed to decompose to form TDG over a period of 6 months. Mustard did not degrade on ambient sand or limestone for 12 months, nor on asphalt in 12 months. The lack of reaction on the ambient substrates, plus the formation of the same products that were seen in water and moist soil, suggested that the sand, asphalt, and limestone functioned as chemically inert surfaces on which the reaction between mustard and water occurred.

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Title:

Degradation of Mustard on Moist Sand, Asphalt, and Limestone Using 13C SSMAS NMR

Contributors:

C. A. Brevett (author) / C. L. Cook (author) / R. G. Nickol (author) / K. B. Sumpter (author) / M. R. Hall (author)

Publication date:

2006

Size:

30 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Chemical, Biological, & Radiological Warfare , Nuclear magnetic resonance , Degradation , Mustard agents , Carbon , Asphalt , Solid state electronics , Sand , Limestone , Spinning(Motion) , Ssmas(Solid state magic angle spinning) , Nmr(Nuclear magnetic resonance)

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