Potassium Tartrate
Potassium tartrate is a salt of tartaric acid, commonly used as an analytical reagent and a food buffer. It is classified under tariff item 2918.13.00 because it is a salt of tartaric acid, which falls under the heading for carboxylic acids with an alcohol function. The product does not have any additional functional groups that would alter its classification.
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 tartaric acid itself, not a salt
Tartaric acid (the acid form) is classified under a different subheading within the same heading.
If the product is a specific ester of tartaric acid
Esters of tartaric acid are classified under a separate subheading from salts.
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
• Ensure the product is a separate chemically defined organic compound and not a mixture, as per Chapter 29 Note 1
• Declare the correct 8-digit tariff item 2918.13.00 on your customs documentation
• If the product is imported in a solution, verify that the solvent is solely for safety or transport purposes
Related Products under Tariff item 2918.13.00
Ammonium Bitartrate
Ammonium bitartrate is a salt of tartaric acid used in wine stabilization and as a laboratory reagent. It is a separate chemically defined compound with an alcohol function, classified under the tariff item for salts of tartaric acid. The bitartrate form retains the carboxylic acid and alcohol functions characteristic of tartaric acid.
Bulk Baking Stabilizer Potassium Bitartrate
Industrial food processing grade cream of tartar in bulk 50lb sacks for meringue production and candy manufacturing. It is a chemically defined potassium salt of tartaric acid, classified under this tariff item.
Bulk Rochelle Salt Dihydrate USP
Pharmaceutical bulk potassium sodium tartrate tetrahydrate (dihydrate formula KNaC4H4O6·4H2O) meeting USP monograph. It is classified under this tariff item as a specifically named Rochelle salt of tartaric acid.
Calcium Tartrate Dihydrate
Calcium tartrate dihydrate is the calcium salt of tartaric acid, used as a food additive and stabilizer in beverages and confectionery. It is a separate chemically defined compound with an alcohol function, classified under the tariff item for salts of tartaric acid. The dihydrate form is a stable crystalline product.
Dibutyl Tartrate
Dibutyl tartrate is an ester of tartaric acid used as a plasticizer in resins and as a solvent. It is a separate chemically defined compound with an alcohol function, classified under the tariff item for esters of tartaric acid. The ester retains the carboxylic acid and alcohol functions characteristic of tartaric acid.
Diethyl Tartrate
Diethyl tartrate is an ester of tartaric acid used as a chiral building block in organic synthesis and fragrances. It is a separate chemically defined compound with an alcohol function, classified under the tariff item for esters of tartaric acid. The ester is a clear, colorless liquid.