Laboratory Grade Platinum Sponge from Mexico
High-surface-area platinum sponge for analytical chemistry reductions and hydrogen absorption studies. Classified HTS 7110.11.00.20 as unwrought platinum in sponge form, suitable for lab-scale catalyst preparation. Distinguished from powder by particle morphology per subheading notes.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Provide material safety data sheets noting pyrophoric nature of fine sponge
• For small quantities, consider research exemptions but declare full commercial value
• Validate against Chapter 98 provisions for scientific instrument imports