Ceramic Bone Black Staining Powder
Bone black calcined to 1400°C for underglaze black stains in ceramic tile production, providing durable color at high firing temperatures. Classified HTS 3802.90.1000 as bone black pigment for ceramics. High purity minimizes firing defects.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pigments prepared for ceramic/frit/enamel use
Chemically combined pigments for high-temp applications in 3207.
If refractory ceramic goods containing bone black
Finished ceramic products incorporating pigments classified by end article.
If kaolin-based white ceramic stains
Mineral clay pigment mixtures separate from pure carbon blacks.
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Import Tips & Compliance
• Certify vitrification temperature (>1200°C) and thermal expansion compatibility
• Package in moisture-proof bags (<0.5% moisture) to prevent clumping
Related Products under HTS 3802.90.10.00
Bone Black Pigment Powder
Bone black is a finely ground animal black produced by calcining animal bones in closed retorts, used primarily as a dense black pigment in paints and inks. It falls under HTS 3802.90.1000 as bone black, distinct from other activated carbons or mineral products due to its animal origin and manufacturing process. This carbon-rich material provides superior tinting strength and opacity.
Spent Bone Black Decolorizing Agent
Spent bone black is used animal black recovered after decolorizing sugar syrups in refineries, retaining carbon properties for reuse in filtration. Classified under HTS 3802.90.1000 as 'spent animal black' including bone black variants. Its porous structure from bone char process makes it ideal for adsorption applications.
Bone Char Black for Artist Oils
High-grade bone black derived from cattle bones, ground to micron fineness for mixing into artist oil paints providing deep matte black tones. HTS 3802.90.1000 applies as pure bone black pigment without additives. Its low oil absorption distinguishes it from lampblack or carbon black alternatives.
Refinery Bone Black Filter Media
Granular bone black used in petroleum refineries for removing color impurities from oils and waxes through adsorption. Falls under HTS 3802.90.1000 as animal black specifically bone black for industrial filtration. Particle size 4-20 mesh optimized for fixed-bed applications.
Pharmaceutical Bone Black Decolorizer
Ultra-pure bone black meeting USP standards for decolorizing and purifying pharmaceutical intermediates and APIs. Classified HTS 3802.90.1000 as bone black when used as adsorbent in drug manufacturing. Low heavy metal content ensures compliance with pharmacopeia requirements.
Bone Black Ink Dispersion Base
Dry bone black powder serving as base for dispersion in printing inks, offering neutral pH and high jetness. HTS 3802.90.1000 covers this pure animal black before vehicle addition. Preferred over channel black for certain offset lithography applications.