IPC Subgroup
C05B 13/04 from metallic phosphorus compounds, e.g. ferro-phosphorus
Introduced: September 1968
Last revised: January 2006
Full Title
Fertilisers produced by pyrogenic processes from phosphatic materials > from metallic phosphorus compounds, e.g. ferro-phosphorus
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- FERTILISERS; MANUFACTURE THEREOF
- Subclass:
- PHOSPHATIC FERTILISERS