IPC Subgroup
C01B 21/097 containing phosphorus atoms
Introduced: January 1980
Last revised: January 2006
Full Title
Nitrogen; Compounds thereof > Compounds containing nitrogen and non-metals > containing phosphorus atoms
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
1 direct subcode
Child Classifications
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- C01B 21/098 Phosphonitrilic dihalides; Polymers thereof