Sulfur, selenium or tellurium; Compounds thereof

Introduced: July 1974

Full Title

Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds > Sulfur, selenium or tellurium; Compounds thereof

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 1974.

Child Classifications

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B01J 27/04 Sulfides since 1974 IPC+CPC Available in IPC and CPC
B01J 27/053 Sulfates since 1985 IPC+CPC Available in IPC and CPC
B01J 27/057 Selenium or tellurium; Compounds thereof since 1985 +2 CPC IPC+CPC Available in IPC and CPC