Tartaric acid
Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: > Carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives: > Tartaric acid
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2918.12.00.00
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.
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.
Tartaric Acid for Effervescent Tablets
Coarse granular tartaric acid optimized for effervescent tablet production with bicarbonate, classified as pure tartaric acid under HTS 2918.12.00.00. Particle size controlled for rapid CO2 release.
D(-)-Tartaric Acid
The D(-)-enantiomer of tartaric acid, less common but chemically identical structure to L-form, classified under HTS 2918.12.00.00. Used in resolution of racemic mixtures and specialty synthesis.
Tartaric Acid Powder 50 Micron
Ultra-fine tartaric acid powder with 50 micron particle size for spray drying and instant beverages, classified under HTS 2918.12.00.00. Micronization doesn't change chemical classification.
Tartaric Acid Stabilized for Transport
Tartaric acid with added stabilizer per note 1(f) for safe bulk transport, still classified under HTS 2918.12.00.00 as the pure compound. Prevents decomposition during long sea voyages.
Natural Tartaric Acid from Wine Lees
Tartaric acid extracted from grape wine lees through crystallization, chemically identical to synthetic, classified under HTS 2918.12.00.00 regardless of natural origin. Preferred for organic certification.
Tartaric Acid Anhydrous 99.5%
Anhydrous tartaric acid with 99.5% purity, a white crystalline powder classified under HTS 2918.12.00.00 for its tartaric acid structure with hydroxyl groups. Essential in wine stabilization and metal cleaning solutions.
Diethyl L-Tartrate
Diethyl L-tartrate is the ethyl ester of L-tartaric acid, but pure esters derive classification from the parent acid under chapter note 5(B), placing it with tartaric acid in HTS 2918.12.00.00. Used as a chiral auxiliary in asymmetric synthesis.
Potassium D-Hydrogen Tartrate
Also known as potassium bitartrate or cream of tartar, this is the acid salt of D-tartaric acid, classified under HTS 2918.12.00.00 when considered as the organic acid per chapter note 5(C)(1) for certain salts. Used in baking powders and as a wine precipitate.