Indicator Silica Gel with Cobalt Chloride from Mexico
Synthetic silica gel impregnated with cobalt chloride that changes color from blue to pink when saturated. Still classified under HTS 2811.22.10.00 as the base is chemically defined synthetic silicon dioxide; impregnation doesn't change principal compound.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Declare cobalt content (<0.5%) to avoid REACH SVHC scrutiny
• MSDS must specify indicator type; high cobalt may trigger 2827 classification
• Retail packs need consumer labeling per CPSC if for household use