Universal Decimal Classification

Production of nitrogen compounds. Fixation of nitrogen. Nitrogen industry in general

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Production of nitrogen compounds. Fixation of nitrogen. Nitrogen industry in general
Including Note
Nitrates, fertilizers. Ammonium salts
661.5

Broader Terms

Date of creation
06-Mar-2019
Accepted term
06-Mar-2019
Descendant terms
0
ARK
ark:/99152/t3rjny2v9dpzge
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Alternative terms
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Related terms
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