Arsine Gas from Japan
Arsine (AsH3) is a highly toxic, flammable gas used in microelectronics for doping. As a hydride acid of nonmetal arsenic, it falls under HTS 2811.19.61 per Chapter 28 definitions for inorganic acids. Its classification excludes organo-inorganic forms.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Import only in lecture bottles (<1L) due to pyrophoric nature (UN2198)
• Include end-user certificates for semiconductor fabs to expedite clearance
• Test for phosphine impurities that could shift to 2853