Mercurous Phosphide Powder

Mercurous phosphide is a phosphide of mercury in powdered form, utilized in pyrotechnic compositions and analytical chemistry. Classified under HTS 2852.90.0500 as a mercury phosphide, meeting the 'chemically defined' criteria from subheading note. It requires stringent safety protocols during import.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3603Lower: 10.2% vs 35%

If for use in pyrotechnic or explosive detonators

End-use in safety fuses or detonators reclassifies to Chapter 36 for ammunition components.

3822Lower: 10% vs 35%

If imported as laboratory diagnostic reagent mixture

Composite diagnostic preparations not purely chemically defined fall under 3822.

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Import Tips & Compliance

Declare as UN 2025 Mercury Compounds hazardous substance; provide Safety Data Sheet (SDS) in English; verify state-level mercury handling permits before distribution

Related Products under HTS 2852.90.05.00

Mercuric Phosphate

Mercuric phosphate is an inorganic phosphide compound of mercury used in specialized laboratory applications and as a reagent in chemical synthesis. It falls under HTS 2852.90.0500 as a phosphide of mercury, chemically defined per Chapter 28 notes. This white to yellow powder is handled with extreme care due to mercury toxicity.

Mercuric Tannate

Mercuric tannate is a tannate compound of mercury employed historically in pharmaceutical formulations and as a tanning agent preservative. It is specifically listed under HTS 2852.90.0500 for tannates of mercury. This compound appears as a dark precipitate and demands rigorous toxicity controls.

Mercury Albuminate

Mercury albuminate, an albuminates of mercury, serves in biochemical research and as a protein-mercury complex standard. Covered by HTS 2852.90.0500 as albuminates of mercury, chemically defined inorganic-organic compound. It is typically supplied in stabilized aqueous solutions.

Mercuric Phosphide Crystals

High-purity mercuric phosphide crystals used in semiconductor doping research and phosphor production. This phosphide of mercury qualifies for HTS 2852.90.0500 as a chemically defined mercury compound. Crystals are grown via chemical vapor transport methods.

Mercurous Tannate Precipitate

Mercurous tannate precipitate functions as a reagent in qualitative analysis for protein detection in forensics. Listed under HTS 2852.90.0500 for tannates of mercury. The brownish precipitate forms specific reactions with biological materials.

Pharmaceutical Mercuric Albuminate

Pharmaceutical-grade mercuric albuminate used in historical topical antiseptics and vaccine preservatives. Classifies under HTS 2852.90.0500 as albuminates of mercury. Supplied as sterile lyophilized powder for reconstitution.