Ruby Fused Alumina Powder 99.5% Al2O3
Ultra-fine ruby-colored fused alumina powder with 99.5% aluminum oxide, refined for optical and lapping applications. Classified in HTS 2818.10.20.10 as high-purity, colored artificial corundum that is pulverized. Provides superior hardness for metallurgical polishing and thin-film coatings.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used as inorganic luminophore pigment
Chapter note excludes luminophore products, shifting to pigments chapter.
If in crystalline silicon carbide form
Different carbide compositions classify separately from oxide-based corundum.
If sold as prepared polishing slurry
Mixtures with liquids or additives become chemical preparations, not pure compounds.
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Import Tips & Compliance
• Include XRF spectrometry results proving >97.5% Al2O3 and ruby pigmentation
• Specify micron size (e.g
• D50=1-5μm) to validate 'refined/pulverized' form
Related Products under HTS 2818.10.20.10
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