Arsine Gas
Arsine gas (AsH3) is a highly toxic, flammable gas used in microelectronics for doping semiconductor materials. It is classified under tariff item 2811.19.00 as an 'other inorganic acid' because it is a hydride of the nonmetal arsenic and meets the Chapter 28 definition of a separate chemically defined compound.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the arsine is doped and cut into discs, wafers or similar forms for electronics
Doped chemical elements in semiconductor forms are classified in heading 38.18, not Chapter 28.
If the product is a metal derivative of arsine rather than arsine itself
Metal derivatives of hydrides may fall under heading 28.53, which covers other inorganic compounds.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Arsine is a highly toxic gas; you must comply with Transport Canada regulations for dangerous goods and provide the proper UN number (UN 2188) on shipping documents
• The CBSA may require a certificate of analysis to confirm the product is pure arsine and not a mixture
• Check whether an import permit is needed under the Canadian Environmental Protection Act for toxic substances
Related Products under Tariff item 2811.19.00
33% Hydrobromic Acid in Acetic Acid
A 33% hydrobromic acid solution in glacial acetic acid is a chemically defined inorganic acid, but the solvent is not water. Under Chapter Note 1(c), it qualifies if the acetic acid is a normal and necessary method of putting up for safety or transport and does not render the product suitable for specific use.
48% Hydrobromic Acid Solution
A 48% aqueous solution of hydrogen bromide gas (HBr) is a chemically defined inorganic acid in water. It is classified under this tariff item as an other inorganic acid of a non-metal, per Chapter Note 1(b).
Anhydrous Hydrobromic Acid Gas Cylinder
Anhydrous HBr gas in steel cylinders is a chemically defined inorganic acid in gaseous form. It is classified under this tariff item as an other inorganic acid of a non-metal, as it is not excluded by Chapter Notes.
Anhydrous Sulfamic Acid Flakes
Anhydrous sulfamic acid flakes are a dry, crystalline form of sulfamic acid (H3NSO4) used for analytical chemistry and laboratory reagent applications. It is classified under tariff item 2811.19.00 as an 'other inorganic acid' because it is a separate chemically defined compound of sulfur, nitrogen, hydrogen and oxygen.
Antimonic Acid Colloidal
Colloidal antimonic acid (HSbO3·nH2O) used in flame retardants and catalysts. It is an inorganic oxygen compound of a non-metal, chemically defined despite its colloidal form, and classifiable under this tariff item as an 'other inorganic acid'.
Arsenic Acid Anhydride Powder
Anhydrous arsenic acid powder, also known as arsenic pentoxide when dehydrated, is a chemically defined inorganic compound used in electronics etching. It is classified as an inorganic acid of a non-metal under Chapter 28, meeting the criteria of Note 1(a) to Chapter 28.