Citric 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: > Citric 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 2918.14.00.00
Citric Acid Monohydrate USP Grade
Citric acid monohydrate (C6H8O7·H2O) retains the core tricarboxylic acid structure with alcohol function, classified under HTS 2918.14.00.00 as the hydrated form of the pure compound. USP grade meets pharmaceutical standards for purity and is used in effervescent tablets and syrups. The water of hydration does not alter its classification per chapter notes.
Pharmaceutical Citric Acid Anhydrous BP
BP-grade anhydrous citric acid for pharmaceutical applications is classified under HTS 2918.14.00.00 due to its pure tricarboxylic acid with alcohol function. Used as buffering agent in injectables, effervescent formulations, and vitamin C production. British Pharmacopoeia standards confirm its status as a separate chemically defined compound.
Granular Citric Acid with Stabilizer
Granular citric acid with added stabilizer (per note f) for preservation during transport remains under HTS 2918.14.00.00. The anticaking agent is minimal and necessary, not rendering it for specific use. Ideal for long-haul shipments to baking and confectionery industries.
Citric Acid Technical Grade
Technical grade citric acid (99% purity) for industrial uses like detergents and metal cleaning is classified under HTS 2918.14.00.00 as the chemically defined compound. Lower purity than food/pharma grades but still meets chapter note (a) for separate organic compounds with impurities.
Effervescent Citric Acid Base
Pure citric acid component for effervescent formulations (combined with bicarbonate) classified under HTS 2918.14.00.00 when imported separately. Provides the acid reaction for tablets and powders used in vitamin supplements. Remains a separate chemically defined compound.
Citric Acid for Cosmetics
Cosmetic-grade citric acid used for pH adjustment in lotions, shampoos, and peels falls under HTS 2918.14.00.00 as the pure organic compound with alcohol function. High purity ensures skin safety and stability in formulations.
Citric Acid with Anti-Dusting Agent
Citric acid treated with minimal anti-dusting agent (e.g., mineral oil <0.1%) per chapter note (g) for safety/identification, classified under HTS 2918.14.00.00. Used in bulk handling for food processing where dust control prevents explosion hazards.
High-Purity Citric Acid for Metal Passivation
Ultra-pure citric acid (99.9%) for metal surface passivation in aerospace and medical device manufacturing under HTS 2918.14.00.00. Acts as eco-friendly replacement for nitric acid in stainless steel treatment. Chemically defined compound with no disqualifying modifications.
Organic Citric Acid Crystals
Crystalline citric acid produced via organic fermentation methods, certified USDA NOP, classified under HTS 2918.14.00.00 as the identical chemical compound regardless of production process. Used in premium organic beverages and foods requiring natural sourcing.
Citric Acid for Wine Making
Food-grade citric acid for wine acidification and deacidification cycles under HTS 2918.14.00.00. Adjusts pH in must and wine production while chelating excess metals. Pure compound status maintained for oenological use.
Buffered Citric Acid Solution 10%
10% citric acid solution with minimal buffering stabilizer (note f) for precise pH control in labs and biotech, under HTS 2918.14.00.00. The addition is solely for preservation/transport without specific use adaptation. Used in cell culture media preparation.
Anhydrous Citric Acid
Pure anhydrous citric acid (C6H8O7) is a tricarboxylic acid with alcohol function but no other oxygen function, directly matching HTS 2918.14.00.00. It is widely used as an acidulant, preservative, and pH regulator in food and beverages. This classification applies to the chemically defined organic compound in its pure form.
Food-Grade Citric Acid Powder
Food-grade citric acid powder is the pure compound meeting FCC standards, classified under HTS 2918.14.00.00 for its carboxylic acid with alcohol function structure. Used as a souring agent in soft drinks, candies, and canned goods. Purity ≥99.5% ensures it remains a separate chemically defined organic compound.
Citric Acid for Beverage Industry
High-purity citric acid specifically for beverage acidification and preservation falls under HTS 2918.14.00.00 as the chemically defined citric acid compound. It provides tartness in sodas, sports drinks, and juices while chelating metals. Meets chapter requirements for separate organic compounds without disqualifying additives.
Citric Acid 50% Aqueous Solution
50% citric acid dissolved in water qualifies under HTS 2918.14.00.00 per chapter note (d) for products of (a) dissolved in water. Used in cleaning formulations and as intermediate for further dilution in food processing. The solution form is necessary for safe transport without altering its general-use classification.