Dimethyl Diphenyl Ether Heat Transfer Fluid Grade from Canada
High-purity dimethyl diphenyl ether formulated for heat transfer applications with minimal anti-oxidants. Classifiable in HTS 2909.30.0500 as the pure named compound with allowed stabilizers per Chapter Note 1(f). Widely used in chemical processing plants and solar thermal systems.
Duty Rate — Canada → United States
15.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide thermal stability certificates showing performance without formulation-specific additives
• Label as 'pure chemical with stabilizers' not 'heat transfer fluid' to preserve Chapter 29 status
• Monitor import volumes for EPA review under TSCA high-production volume chemicals