Citric Acid (CAS 77-92-9) – Industrial Grade Organic Acid for Multiple Applications

Citric Acid, a naturally occurring organic acid with the molecular formula C₆H₈O₇, is a cornerstone ingredient celebrated for its acidic properties, biodegradability, and multifunctionality. Available in two primary forms—Anhydrous Citric Acid (C₆H₈O₇) and Citric Acid Monohydrate (C₆H₈O₇·H₂O)—this white crystalline compound serves as a key component in food, pharmaceuticals, cosmetics, agriculture, and industrial processes worldwide.

1. Food & Beverage Industry: The Essence of Flavor and Preservation

Citric Acid is a staple in food and beverage formulations, offering dual roles as a flavor enhancer and preservative:

• Beverages:

• In carbonated drinks, juices, and energy drinks (e.g., global soft drink brands), both anhydrous and monohydrate forms adjust pH to 2.5–3.5, delivering a refreshing sour taste while inhibiting microbial growth.
• Anhydrous Citric Acid is preferred in powdered drinks (e.g., instant lemonade) for its low hygroscopicity, ensuring powder flowability in humid climates.
  • Processed Foods:
• Monohydrate Citric Acid is widely used in canned fruits, jams, and sauces to chelate metal ions, prevent oxidation, and extend shelf life. For example, in European fruit preserves, it maintains vibrant color and natural acidity.
• Anhydrous Citric Acid excels in baked goods (e.g., cookies, cakes) as a leavening agent, reacting with baking soda to produce CO₂ and enhance texture without compromising moisture stability.

2. Pharmaceuticals & Personal Care: Safety and Functionality

• Pharmaceutical Applications:

• Both forms act as pH buffers in oral liquids, syrups, and effervescent tablets. Anhydrous Citric Acid is ideal for moisture-sensitive formulations (e.g., dry powders), while monohydrate is preferred in aqueous solutions for its rapid dissolution.
• In dermatological creams and lotions, Citric Acid exfoliates dead skin cells and adjusts pH to support skin barrier function, commonly found in Korean skincare brands’ AHA-based products.
  • Oral Care:
• Monohydrate Citric Acid is used in toothpaste and mouthwash to enhance fluoride efficacy by chelating calcium ions, reducing enamel erosion and preventing plaque buildup.

3. Industrial & Environmental Solutions: Efficiency and Sustainability

• Water Treatment:

• Citric Acid (both forms) removes scale and metal deposits in boilers, cooling systems, and pipelines. For example, in U.S. power plants, anhydrous Citric Acid is used in descaling solutions to dissolve calcium carbonate and iron oxides.
• Monohydrate Citric Acid is a cost-effective chelating agent in wastewater treatment, binding heavy metals (e.g., lead, nickel) for safe disposal or recycling.
  • Textile & Leather Processing:
• In textile dyeing (e.g., Indian cotton mills), Citric Acid stabilizes dye baths, ensuring uniform color absorption and reducing water usage.
• In leather tanning, it adjusts the pH of tanning liquors, enhancing the penetration of chromium salts and producing softer, more durable leather.

4. Agriculture & Animal Nutrition: Growth and Health Enhancement

• Fertilizers & Crop Protection:

• Chelated micronutrient fertilizers (e.g., iron-citrate complexes) improve nutrient uptake in plants, addressing deficiencies in acidic soils (e.g., Southeast Asian rice paddies).
• Monohydrate Citric Acid is used as a natural preservative in animal feed, lowering pH to inhibit mold growth and enhance digestibility in poultry and swine diets.
  • Aquaculture:
• Anhydrous Citric Acid regulates water pH in fish farms, creating an optimal environment for aquatic life while reducing the toxicity of ammonia compounds.

5. Cosmetics & Household Products: Performance and Safety

• Cosmetics:

• In creams and serums, Citric Acid acts as an antioxidant and exfoliant, promoting collagen synthesis and improving skin texture. Anhydrous form is favored in oil-based formulations to avoid water contamination.
• Monohydrate Citric Acid is a key ingredient in bath bombs and exfoliating scrubs, providing fizz and gentle exfoliation.
  • Household Cleaners:
• Both forms are used in eco-friendly cleaning products (e.g., descaling agents, laundry detergents) to remove mineral deposits and enhance cleaning efficacy, aligning with EU Ecolabel standards.

Quality & Compliance

• Purity Grades:

• Food Grade: Meets USP, FCC, and EU Food Additive Standards (E330), suitable for direct food contact.
• Industrial Grade: ≥99% purity, ideal for water treatment and textile applications.
• Pharmaceutical Grade: Complies with EP/JP/USP, used in oral and topical medications.
  • Sustainability: Produced via fermentation of renewable sugars (e.g., molasses), with zero synthetic solvents and low carbon footprint.
  • Packaging: Available in 25 kg moisture-resistant bags, 1000 kg totes, or bulk tankers, ensuring stability during global transport.

Why Choose Our Citric Acid?

Whether you’re formulating the next global beverage brand, optimizing industrial processes, or developing sustainable agricultural solutions, our Citric Acid delivers unmatched quality and versatility. With regional warehouses in North America, Europe, and Asia, we ensure fast delivery and tailored technical support for anhydrous and monohydrate applications.

Experience the power of nature’s acid—where innovation meets sustainability in every industry.