| LC control no. | sh 85092062 |
|---|---|
| LC classification | QD181.N1 Chemistry TP261.N7 Electrochemistry |
| Topical heading | Nitrogen |
| See also | subdivision Nitrogen content under individual materials, e.g. Metals--Nitrogen content Group 15 elements Nonmetals |
| Subject example tracing | Example under Gases |
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