L(+)-Tartaric Acid
L(+)-Tartaric acid is the naturally occurring enantiomer of tartaric acid, a dicarboxylic acid with two hydroxyl groups, classified under HTS 2918.12.00.00 as tartaric acid with alcohol function but without other oxygen function. It is commonly used in winemaking for acidification and in food as a souring agent.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If supplied as a salt like potassium bitartrate (cream of tartar)
Tartaric acid salts are classified separately in 2918.13 under note 5(C)(1) for inorganic salts of organic acids.
If in the form of esters like diethyl tartrate
Esters of tartaric acid fall under 2918.14 per chapter note 5(A), classified by numerical order.
If dissolved in water or mixed for retail food use beyond simple solution
Mixtures exceeding chapter 29 scope (note 1(d-e)) may classify as chemical preparations in chapter 38.
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Import Tips & Compliance
• Verify optical purity via polarimetry or HPLC; impurities exceeding 1% may require different classification
• Provide Certificate of Analysis confirming it's pure tartaric acid, not a salt or ester (classified elsewhere)
• Ensure food-grade products have FDA prior notice if for consumption; avoid misdeclaration as citric acid
Related Products under HTS 2918.12.00.00
DL-Tartaric Acid (Racemic)
DL-Tartaric acid is the racemic mixture of D- and L-tartaric acid, chemically defined as tartaric acid under HTS 2918.12.00.00 due to its carboxylic acids with alcohol function. Used in pharmaceuticals and as a chiral resolving agent in organic synthesis.
Food-Grade Tartaric Acid USP
Tartaric acid meeting USP standards for food and pharmaceutical use, classified under HTS 2918.12.00.00 as the pure chemically defined compound with alcohol function. Widely used as an acidulant in beverages, candies, and effervescent tablets.
Tartaric Acid Technical Grade 99%
Technical grade tartaric acid at 99% purity for industrial applications like metal polishing and textiles, classified as tartaric acid under HTS 2918.12.00.00 per chapter note 1(a) allowing impurities. Less refined than USP but still chemically defined.
Monohydrate Tartaric Acid Crystals
Tartaric acid monohydrate in crystalline form, chemically defined with one water molecule per tartaric acid molecule, classified under HTS 2918.12.00.00 per note 1(d). Used in effervescent formulations and as a buffer.
Tartaric Acid for Wine Making
High-purity L-tartaric acid specifically packaged for oenological use in adjusting wine acidity, classified under HTS 2918.12.00.00 as pure tartaric acid despite end use. Meets OIV standards for food safety.
Pharmaceutical Tartaric Acid EP/BP
European Pharmacopoeia grade tartaric acid for drug formulations as excipient and pH adjuster, classified under HTS 2918.12.00.00 for its chemically defined structure. Used in tablets, syrups, and injectables.