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.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 5.1% | +35.0% | 40.1% |
| 🇲🇽Mexico | 5.1% | +10.0% | 15.1% |
| 🇨🇦Canada | 5.1% | +10.0% | 15.1% |
| 🇩🇪Germany | 5.1% | +10.0% | 15.1% |
| 🇯🇵Japan | 5.1% | +10.0% | 15.1% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing additives or impurities exceeding typical paraformaldehyde specifications
Mixtures of chemical products not elsewhere specified fall under Chapter 38 when they no longer qualify as separate chemically defined compounds per Chapter 29 note 1(a).
If imported as monomeric formaldehyde solution rather than polymerized form
Methanal (formaldehyde) in aqueous solution is classified separately from its cyclic polymer paraformaldehyde under the specific aldehyde subheadings.
If when formulated specifically as pesticide or disinfectant for retail sale
Pesticides containing paraformaldehyde as active ingredient are classified in Chapter 38 based on end use rather than chemical composition.
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Import Tips & Compliance
• Verify purity certification (typically 92-96%) as this determines classification under 2912.60; impure mixtures may shift to Chapter 38
• Include Material Safety Data Sheets (MSDS) documenting formaldehyde content and polymerization structure for CBP review
• Ensure proper Hazard Class 9 packaging and labeling per DOT/UN regulations for dangerous goods importation
Related Products under HTS 2912.60.00.00
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.