DIFF Subgroup
C01C 1/249 Deacidifying the crystals
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Ammonia; Compounds thereof > Sulfates of ammonium > Deacidifying the crystals
CPC:
Ammonia; Compounds thereof > Sulfates of ammonium (C01C1/14 takes precedence) > Deacidifying the crystals
No child classifications to compare. This is a leaf node in both IPC and CPC.