Calcium hydrogenorthophosphate ("Dicalcium phosphate")
Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined: > Phosphates: > Calcium hydrogenorthophosphate ("Dicalcium phosphate")
Duty Rate (from China)
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
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2835.25.00.00
Dicalcium Phosphate Dihydrate USP Grade
Calcium hydrogenorthophosphate dihydrate (CaHPO4·2H2O) in USP pharmaceutical grade, used as a calcium and phosphorus supplement in tablets and capsules. It falls under HTS 2835.25.00.00 as a chemically defined phosphate of calcium, meeting Chapter 28 note requirements for inorganic compounds. Purity exceeds 98% with low heavy metals for direct compression in nutraceuticals.
Feed Grade Dicalcium Phosphate 18% Phosphorus
Granular dicalcium phosphate with minimum 18% phosphorus and 21% calcium, designed for livestock mineral supplements to prevent deficiencies. Classified under HTS 2835.25.00.00 as pure calcium hydrogenorthophosphate, excluding feed-specific preparations. Low fluoride content ensures safety for poultry and swine rations.
Anhydrous Dicalcium Phosphate Food Grade
Pure anhydrous CaHPO4 (without water of hydration) GRAS-listed for use as a dough conditioner, nutrient supplement, and anti-caking agent in baked goods. Falls under HTS 2835.25.00.00 as chemically defined calcium hydrogenorthophosphate per Chapter 28 notes. Fine powder form with 97% minimum assay.
Dicalcium Phosphate Technical Grade Powder
Technical grade calcium hydrogenorthophosphate used in water treatment as a corrosion inhibitor and in ceramics as a flux. HTS 2835.25.00.00 applies to this chemically pure inorganic phosphate compound. Medium particle size for industrial dispersion.
Pharmaceutical Dicalcium Phosphate Granules
Direct compressible granules of dicalcium phosphate dihydrate for high-speed tablet pressing in vitamin and mineral formulations. Precisely matches HTS 2835.25.00.00 as calcium hydrogenorthophosphate, USP/EP compliant. Uniform 100-200 micron size distribution.
Dicalcium Phosphate for Toothpaste Abrasive
Precipitated dicalcium phosphate optimized as mild abrasive in oral care formulations, with controlled particle shape for polishing without enamel damage. HTS 2835.25.00.00 covers this pure chemical form before cosmetic incorporation. High whiteness index >95%.
Dicalcium Phosphate Fertilizer Grade Pellets
Pelletized calcium hydrogenorthophosphate providing slow-release phosphorus for soil amendment in agriculture. Still classified under HTS 2835.25.00.00 as chemically defined compound, not yet a Chapter 31 fertilizer mixture. 16-18-0 NPK equivalent analysis.
EP Grade Dicalcium Phosphate for EU Pharma
European Pharmacopoeia compliant dicalcium phosphate dihydrate for continental pharmaceutical manufacturing, with stringent microbial limits. HTS 2835.25.00.00 as per Chapter 28 inorganic compound definitions. Supports high-volume capsule filling.
Nano-Dicalcium Phosphate for Advanced Supplements
Nanoparticle dicalcium phosphate (<100nm) for enhanced bioavailability in next-gen nutraceuticals and bone health formulas. Remains HTS 2835.25.00.00 as chemically defined, particle size doesn't affect chemical classification. High surface area improves absorption.