Potassium Tungstate from Japan
Potassium tungstate (K2WO4) is an inorganic salt of tungstic acid, used in fireproofing textiles and as a catalyst precursor. It is classified under tariff item 2841.80.00 as a tungstate (wolframate), being a separate chemically defined salt of an oxometallic acid. The product meets Chapter 28 criteria for chemically defined inorganic compounds.
Duty Rate — Japan → Canada
0%
Import Tips
• Ensure the potassium tungstate is not mixed with organic substances, as that could change classification
• Keep documentation showing the chemical formula and purity
• Verify if the product is for industrial use, which may affect duty rates or require permits