DIFF Subgroup
C01D 5/16 Purification
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Sulfates or sulfites of sodium, potassium, or alkali metals in general > Purification
CPC:
Sulfates or sulfites of sodium, potassium or alkali metals in general > Purification
No child classifications to compare. This is a leaf node in both IPC and CPC.