Calcium Boride Crystals
Calcium boride (CaB6) crystals used in refractory materials and neutron absorbers for nuclear applications. Falls under HTS 2850.00.0500 as a chemically defined boride of calcium. Known for high hardness and thermal stability.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If co-precipitated with boron carbide
Borides containing carbide components are classified under 2849 exclusion.
If ruthenium or osmium doped variants
Borides of rare earths or precious metals shift to Chapter 81.
If preformed into refractory shapes
Boride products shaped for furnace linings become Chapter 69 refractories.
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Import Tips & Compliance
• Submit crystallographic data if claiming single crystals to justify chemical definition
• For nuclear end-use, prepare IAEA safeguards documentation preemptively
• Avoid retail packaging that might trigger 3824 classification for lab reagents
Related Products under HTS 2850.00.05.00
Calcium Hydride Powder
Calcium hydride (CaH2) is a grayish-white powder used as a desiccant and reducing agent in chemical synthesis and hydrogen generation. It falls under HTS 2850.00.0500 as a chemically defined hydride of calcium, distinct from carbides in heading 2849. This inorganic compound reacts with water to produce hydrogen gas.
Calcium Nitride Granules
Calcium nitride (Ca3N2) in granular form serves as a nitrogen source in metallurgy and semiconductor production. Classified under HTS 2850.00.0500 as a chemically defined nitride of calcium, meeting Chapter 28 Note 1 criteria. It hydrolyzes to release ammonia.
Calcium Silicide Powder
Calcium silicide (CaSi2) powder acts as a deoxidizer in steel production and ferrosilicon manufacturing. It is classified in HTS 2850.00.0500 as a chemically defined silicide of calcium, excluding carbides. The compound improves steel fluidity and reduces oxygen content.
Calcium Azide Fine Powder
Calcium azide (Ca(N3)2) fine powder employed as an initiator in airbag inflators and explosives. Classified under HTS 2850.00.0500 as a chemically defined azide of calcium. Extremely shock-sensitive requiring specialized handling.
Technical Grade Calcium Hydride
Technical grade calcium hydride (85-95% purity) for industrial drying and hydrogen generation in oil refining. HTS 2850.00.0500 covers this chemically defined calcium hydride despite impurities. Supplied in moisture-proof drums.
Calcium Nitride for LEDs
High-purity calcium nitride precursor for green LED phosphors in displays. Classified HTS 2850.00.0500 as chemically defined calcium nitride. Vacuum-sealed for semiconductor processing.