Technical Grade P4S3 Flakes from Japan
Technical grade phosphorus sesquisulfide (P4S3) in flake form serves as a key intermediate in pesticide and lubricant additive production. Classified under HTS 2813.90.50.00 as 'other' commercial phosphorus trisulfide, a nonmetal sulfide excluded from organic chapters. It is highly flammable and requires inert atmosphere storage.
Duty Rate — Japan → United States
13.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Declare exact CAS# 1314-85-2 and batch purity analysis; use nitrogen-purged containers to prevent autoignition; watch for reclassification if moisture content exceeds 0.5% suggesting preparation status