Guncottons sentence example

guncottons
  • Guncottons are examined for degree of nitration by the nitrometer, in which apparatus they are decomposed by sulphuric acid in contact with mercury, and all the nitrogen is evolved as nitric oxide, NO, which is measured and the weight of its contained nitrogen calculated.
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  • Ordinary guncottons seldom contain more than 13% of nitrogen, and in most cases the amount does not exceed 12.5%.
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  • Guncottons are usually tested by the Abel heat test for stability (see CORDITE).
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