CPC Subgroup
C01B 21/24 Nitric oxide (NO)
Full Title
Nitrogen; Compounds thereof > Nitrogen oxides; Oxyacids of nitrogen; Salts thereof > Nitric oxide (NO)
2 direct subcodes
Child Classifications
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- C01B 21/26 Preparation by catalytic oxidation of ammonia
- C01B 21/30 Preparation by oxidation of nitrogen