Calcium Hypophosphite
Calcium hypophosphite (Ca(H2PO2)2) is an inorganic salt used in pharmaceuticals and as a calcium supplement in food products. It is a phosphinate (hypophosphite) of calcium, an inorganic base, and qualifies as a separate chemically defined compound under Chapter 28. This tariff item specifically covers phosphinates and phosphonates.
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 |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is a phosphate instead of a phosphinate
Phosphates fall under a different subheading within the same heading.
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
• If imported for food or pharmaceutical use, ensure compliance with Health Canada regulations
• Provide a certificate of analysis to confirm purity and chemical identity
• Check if the product requires a Controlled Goods or import permit
Related Products under Tariff item 2835.10.00
Ammonium Hypophosphite
Ammonium hypophosphite (NH4H2PO2) is a white crystalline salt used as a reducing agent in chemical synthesis and as a polymer stabilizer. It is a phosphinate (hypophosphite) of an inorganic base, ammonium, and meets the definition of a separate chemically defined compound under Chapter 28. This tariff item covers phosphinates and phosphonates, including ammonium salts.
Disodium Phosphite Pentahydrate
Disodium phosphite pentahydrate (Na2HPO3·5H2O) is a hydrated form of sodium phosphite used as a reagent in analytical chemistry. Despite the water of hydration, it remains a separate chemically defined compound under Chapter 28, as hydrates are not excluded. It is a phosphonate (phosphite) of an inorganic base, sodium, and falls under this tariff item.
Magnesium Phosphite
Magnesium phosphite (MgHPO3) is used in fire retardants and water treatment applications. It is a phosphonate (phosphite) of magnesium, an inorganic base, and qualifies as a separate chemically defined compound under Chapter 28. This tariff item covers phosphonates, including magnesium salts.
Manganese Hypophosphite
Manganese hypophosphite (Mn(H2PO2)2) is a specialty chemical used in nutritional supplements and as a catalyst. It is a phosphinate (hypophosphite) of manganese, an inorganic base, and meets the definition of a separate chemically defined compound under Chapter 28. This tariff item covers phosphinates, including metal salts.
Potassium Phosphite
Potassium phosphite (KH2PO3) is used as a fungicide and plant nutrient in agriculture. It is a phosphonate (phosphite) of potassium, an inorganic base, and qualifies as a separate chemically defined compound under Chapter 28. This tariff item covers phosphonates, including potassium salts.
Sodium Hypophosphite
Sodium hypophosphite (NaH2PO2) is a white crystalline powder used as a reducing agent in chemical synthesis and electroless nickel plating. It is a phosphinate (hypophosphite) of sodium, an inorganic base, and meets the definition of a separate chemically defined compound under Chapter 28. This tariff item specifically covers phosphinates.