Paraformaldehyde
Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde: > Paraformaldehyde
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 2912.60.00.00
Paraformaldehyde 92% Powder
Paraformaldehyde 92% is a high-purity powdered cyclic polymer of formaldehyde used primarily as a disinfectant and fixative in biological and medical laboratories. It falls under HTS 2912.60.00.00 as it is explicitly classified as paraformaldehyde, a polymerized form of formaldehyde with the characteristic aldehyde oxygen function. This product meets Chapter 29 note requirements for separate chemically defined organic compounds.
Paraformaldehyde Prills 96%
Paraformaldehyde prills at 96% concentration are small spherical granules used in resin manufacturing and as a formaldehyde source in industrial polymer production. Classified under HTS 2912.60.00.00 as pure paraformaldehyde, this cyclic polymer of formaldehyde qualifies under Chapter 29 aldehyde provisions. The prill form facilitates handling and dissolution in resin synthesis applications.
USP-Grade Paraformaldehyde for Tissue Fixation
USP-grade paraformaldehyde meets pharmaceutical standards for histological tissue fixation in pathology labs and research institutions. This 95% pure cyclic formaldehyde polymer falls under HTS 2912.60.00.00 per Chapter 29 aldehyde classification, distinguished from formaldehyde solutions by its solid polymerized structure. Biocompatibility certification ensures suitability for biological applications.
Industrial Paraformaldehyde Flakes 91%
Paraformaldehyde flakes at 91% concentration serve as the primary formaldehyde source for phenolic and urea resin production in plywood and particleboard manufacturing. HTS 2912.60.00.00 classification applies to this cyclic aldehyde polymer meeting Chapter 29 purity standards. Large flake form optimizes bulk handling and storage stability for industrial resin facilities.
Paraformaldehyde Methanol Stabilized 94%
This 94% paraformaldehyde powder stabilized with 4-6% methanol prevents premature depolymerization during storage and transport for pharmaceutical intermediate synthesis. HTS 2912.60.00.00 classification applies per Chapter 29 note 1(f) allowing stabilizers necessary for preservation. The methanol addition qualifies as safety/transport stabilizer without changing primary aldehyde function.
High-Purity Paraformaldehyde 99% for Electronics
99% paraformaldehyde powder for cleanroom use in electronics manufacturing provides ultra-low metal impurities for advanced resin systems in semiconductor packaging. Falls under HTS 2912.60.00.00 as chemically defined aldehyde polymer per Chapter 29 requirements. Exceptional purity supports microelectronics adhesive and encapsulation applications.
Paraformaldehyde Bulk Bags 500kg
500kg flexible intermediate bulk containers of 93% paraformaldehyde powder for large-scale resin manufacturing facilities. HTS 2912.60.00.00 classification applies to industrial quantities of this cyclic aldehyde polymer. UN-approved FIBC design prevents moisture ingress and formaldehyde emission during transoceanic shipment.
Paraformaldehyde for Urea Resin Production
Special 95% paraformaldehyde optimized for slow-release formaldehyde in urea-formaldehyde resin synthesis for furniture manufacturing. Precise polymerization degree ensures controlled curing rates in pressed wood products. HTS 2912.60.00.00 classification confirmed by cyclic polymer structure analysis.
Veterinary Paraformaldehyde Disinfectant Powder
Paraformaldehyde 92% powder for veterinary footbath disinfection in livestock facilities provides broad-spectrum microbial control. Solid polymer form ensures prolonged formaldehyde release compared to liquid disinfectants. Classifies under HTS 2912.60.00.00 as pure chemical compound despite agricultural application.
Paraformaldehyde Polymer Analysis Standard
Certified reference paraformaldehyde 96% for formaldehyde emission testing and polymer analysis instrumentation calibration. NIST-traceable purity ensures accurate quantification in resin testing laboratories. HTS 2912.60.00.00 classification applies to this analytically pure aldehyde polymer standard.