Sodium Paratungstate Pentahydrate from China
Sodium paratungstate pentahydrate is an isopolyoxotungstate used in metal finishing applications. It forms protective conversion coatings and is classified as a tungstate under heading 28.41.
Duty Rate — China → Canada
0%
Import Tips
• Verify the exact hydration state and molecular formula on the certificate of analysis
• Confirm the product is not a mixture with other metal salts
• Provide the end-use application for metal finishing in the import declaration