HCFC-142b 99.99% Electronic Grade from Canada
Ultra-high purity chlorodifluoroethane (HCFC-142b) for cleaning precision electronic components and carrier fluid in vapor degreasing. HTS 2903.74.01.00 classification as chemically defined acyclic halogenated hydrocarbon. Purity level prevents mixture classification.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Gas Chromatography (GC) analysis required to prove electronic grade purity
• Special ESD-safe packaging needed for semiconductor industry end-use
• Monitor annual EPA Federal Register notices for HCFC import quota changes