DIFF Main Group
C01F 17/00 Compounds of rare earth metals
Introduced: September 1968
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2020.
Child Classifications
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- C01F 17/10 Preparation or treatment, e.g. separation or purification since 2020 IPC+CPC Available in IPC and CPC
- C01F 17/20 Compounds containing only rare earth metals as the metal element since 2020 IPC+CPC Available in IPC and CPC
- C01F 17/30 Compounds containing rare earth metals and at least one element other than a rare earth metal, oxygen or hydrogen, e.g. La4S3Br6 (C01F17/247 - C01F17/294 take precedence) since 2020 IPC+CPC Available in IPC and CPC