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12:03 Sep 17, 2011 |
English language (monolingual) [PRO] Tech/Engineering - Chemistry; Chem Sci/Eng / chemical compounds | |||||||
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| Selected response from: kamilw Local time: 10:19 | ||||||
Grading comment
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SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
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5 +1 | undergoes decomposition catalyzed by bases |
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3 +1 | is suceptible to BCD |
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5 -1 | to act as base |
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Discussion entries: 1 | |
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is suceptible to BCD Explanation: prone is this context means suceptible as in the dictionary definition of inclined to or predisposed to -- meaning it well tend to, or most probably base is part of the phrase 'base catalyzed decomposition" as described in the following web link http://www.clu-in.org/download/partner/vijgen/NATO_BCDFactSh... -------------------------------------------------- Note added at 16 mins (2011-09-17 12:19:43 GMT) -------------------------------------------------- From this website (and their other such sources) Status: The BCD process has been used extensively in the U.S. on Superfund sites and in the clean up in 1997 of some 10,000 tons of PCB-contaminated soil on a U.S. Navy Public Works Center in Guam. Currently, the process is being used at present to treat some 40,000 tons of PCB-contaminated soil in Warren County, North Carolina. .... The BCD process involves treatment of liquid and solid wastes in the presence of a reagent mixture consisting of a high boiling point hydrocarbon such as number 6 fuel oil, sodium hydroxide and a proprietary catalyst. When heated to about 300° C, the reagent produces highly reactive atomic hydrogen, which cleaves chemical bonds that confer toxicity to compounds. ... |
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to act as base Explanation: This material is having a tendency to act as base for influencing decomposition process to release H2S. |
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undergoes decomposition catalyzed by bases Explanation: In basic environment the material is decomposed (the base is a catalyst of this process). H2S is released as a product of this decomposition. -------------------------------------------------- Note added at 16 mins (2011-09-17 12:20:06 GMT) -------------------------------------------------- or rather is likely to be decomposed |
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