Plumbous Carbonate Crystals
Large crystal plumbous carbonate (PbCO3) grown for X-ray diffraction standards and research. Classified HTS 2836.99.40.00 as pure inorganic lead carbonate meeting Chapter 28 definitions. Single crystal form for scientific instrumentation.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If optical quality crystals
Optical elements of inorganic salts excluded to Chapter 90.
If enriched isotope
Isotopically modified lead compounds per Chapter note to 2844.
If spectroscopy standard mix
Certified reference materials as mixtures in Chapter 38.
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Import Tips & Compliance
• Declare crystal structure data; research institution import license; avoid optical element packaging
Related Products under HTS 2836.99.40.00
Basic Lead Carbonate
Basic lead carbonate, also known as white lead, is a white pigment composed primarily of lead(II) carbonate and lead(II) hydroxide. It falls under HTS 2836.99.40.00 as a lead carbonate used historically in paints and coatings. This chemically defined inorganic compound is classified in Chapter 28 for inorganic carbonates of metals.
Lead Subcarbonate Powder
Lead subcarbonate is a fine white powder form of basic lead carbonate used in specialty coatings and rust inhibitors. Classified under HTS 2836.99.40.00 as a lead carbonate per Chapter 28 notes for inorganic metal carbonates. Excludes stabilized organic preparations.
Cerussite Mineral Concentrate
Cerussite concentrate is chemically processed natural lead(II) carbonate ore refined to >90% purity for chemical applications. Falls under HTS 2836.99.40.00 as chemically defined lead carbonate per subheading note. Distinguished from raw ore by purification.
Lead(II) Carbonate Anhydrous
Pure anhydrous lead(II) carbonate (PbCO3) in crystalline powder form for laboratory and analytical standards. Classified precisely under HTS 2836.99.40.00 as a chemically defined inorganic lead carbonate. Meets Chapter 28 Note 1 purity requirements.
Hydrocerussite Synthetic Pigment
Synthetic hydrocerussite (2PbCO3·Pb(OH)2) produced for high-purity white pigments in ceramics and glass. HTS 2836.99.40.00 covers this basic lead carbonate composition as per chemical definition. Synthetic form distinguished from natural mineral.
White Lead Dry Powder
Dry white lead powder, basic lead carbonate for traditional artist's oil paints and marine coatings. Under HTS 2836.99.40.00 as pure lead carbonate compound excluding organic admixtures. Historical pigment still used in restoration.