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Effect of medium acidity on the efficiency of oxidation of 2,4,6-trinitrotoluene to 2,4,6-trinitrobenzoic acid
An effect of boric acid additives on oxidation of 2,4,6-trinitrotoluene (TNT) to 2,4,6-trinitrobenzoic acid (TNBA) with chromic anhydride in concentrated (96—100%) H 2 SO 4 has been studied. In the presence of tetrahydrosulfatoboric acid HB(HSO 4 ) 4 formed in situ (up to 5 mol.%) or added as a prel...
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Published in: | Russian chemical bulletin 2016-09, Vol.65 (9), p.2216-2219 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | An effect of boric acid additives on oxidation of 2,4,6-trinitrotoluene (TNT) to 2,4,6-trinitrobenzoic acid (TNBA) with chromic anhydride in concentrated (96—100%) H
2
SO
4
has been studied. In the presence of tetrahydrosulfatoboric acid HB(HSO
4
)
4
formed
in situ
(up to 5 mol.%) or added as a preliminary prepared solution (up to 1 mol. %), TNT is selectively oxidized to TNBA in the yields up to 95—99%. The mechanism including formation of TNT dication as a key step of its oxidation at the methyl group has been suggested. |
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ISSN: | 1066-5285 1573-9171 |
DOI: | 10.1007/s11172-016-1571-0 |