Diphenyldichlorosilane 98% Technical Grade
Technical grade diphenyldichlorosilane at 98% purity with minor impurities, remains classified under HTS 2931.90.0500 per Chapter 29 note (a) allowing impurities in chemically defined compounds. Used in industrial silicone rubber compounding and surface modification applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If isomer mixture rather than single compound
Chapter note (b) directs isomer mixtures to separate organo-inorganic subheading.
If hydrolyzed to silanol without chlorine
Hydrolyzed silanes lose organo-inorganic halide character, becoming halogenated alcohols.
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Import Tips & Compliance
• Impurities must not exceed 2% and must be declared; excessive impurities trigger reclassification
• Use stainless steel containers to prevent reaction with moisture during ocean transport
• Pre-clear with CBP if stabilizer added exceeds Chapter 29 note (f) preservation limits
Related Products under HTS 2931.90.05.00
Diphenyldichlorosilane
Diphenyldichlorosilane (CAS 149-76-8) is an aromatic organosilicon compound with the formula (C6H5)2SiCl2, classified under HTS 2931.90.0500 as a specific organo-inorganic compound containing silicon directly linked to carbon atoms in aromatic rings. It serves as a key intermediate in silicone polymer synthesis and silane coupling agent production.
Phenyltrichlorosilane
Phenyltrichlorosilane (CAS 98-13-5) is the chemical (C6H5)SiCl3, explicitly named in HTS 2931.90.0500 as an aromatic organo-inorganic compound with silicon-carbon bonding. Used primarily for producing phenyl-functional silicones, silane coupling agents, and high-temperature silicone fluids.
Phenyltrichlorosilane Stabilized with Hexamethyldisiloxane
Phenyltrichlorosilane with added hexamethyldisiloxane stabilizer for moisture protection during transport, classified under HTS 2931.90.0500 per Chapter 29 note (f). The stabilizer is necessary for preservation without creating specific-use formulation.
Diphenyldichlorosilane in Corrosion-Resistant Drum
Diphenyldichlorosilane packaged in fluoropolymer-lined steel drums for safe transport of this moisture-sensitive, corrosive compound, remaining HTS 2931.90.0500. Essential for consistent delivery to silicone manufacturing facilities.