Chrome Alum Crystals from China
Chrome alum crystals consist of chromium potassium sulfate dodecahydrate, a double sulfate salt that qualifies as an alum under heading 28.33. It is primarily used in leather tanning and as a laboratory reagent. The presence of chromium in the trivalent state confirms its alum structure.
Duty Rate — China → Canada
0%
Import Tips
• Declare the exact chemical composition (KCr(SO4)2·12H2O) to avoid misclassification
• Check if the crystals contain any impurities that could shift classification
• Be aware that chromium compounds may be subject to additional environmental regulations