Sodium Hypophosphite Monohydrate from United States
Sodium hypophosphite monohydrate (NaH2PO2·H2O) is the common commercial form used in electroless plating baths. It is a phosphinate (hypophosphite) of sodium, and the water of hydration does not affect its classification as a separate chemically defined compound under Chapter 28. This tariff item covers phosphinates, including hydrates.
Duty Rate — United States → Canada
0%
Import Tips
• Declare the hydrate form and water content accurately on customs documents
• Provide a certificate of analysis to confirm the chemical composition
• Verify if the product is used in plating applications that require additional permits