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Triammonium Phosphate 99% Pure from Canada

99% purity triammonium phosphate for water treatment pH adjustment and corrosion inhibition. Classifies under HTS 2835.29.20.00 per Chapter 28 definitions for inorganic ammonium phosphates. Chemically defined compound.

Duty Rate — Canada → United States

11.5%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Water treatment end-use declaration helps with EPA registration under TSCA

Test for orthophosphate content – impurities can shift classification

Drum packaging standard; verify UN numbering for phosphate salts