Citric Acid Anhydrous is a key organic acid and multifunctional additive renowned for its pleasant sourness, excellent chelating ability, and high biodegradability. It serves as a fundamental ingredient across food, beverage, pharmaceutical, and industrial sectors. It is primarily produced through the microbial fermentation of carbohydrate sources by Aspergillus niger, followed by extraction, purification, and crystallization.

❋ Aliases: 3-Carboxy-3-hydroxypentanedioic Acid
❋ English Name: Citric Acid Anhydrous
❋ Chemical Formula: C₆H₈O₇
❋ Molecular Weight: 192.12
❋ CAS Number: 77-92-9

Key Properties: Pleasant sour taste, strong chelating agent, highly water-soluble, naturally derived and biodegradable.

Advanced Application Scenarios

1. "Acidulant and Flavor Enhancer" in Food & Beverage

• The primary acidulant in soft drinks, juices, and candies, providing a refreshing tartness and balancing sweetness.

• Acts as a preservative and pH regulator in jams, jellies, and canned foods, extending shelf life and maintaining color.

2. "Effervescent Agent and Stabilizer" in Pharmaceuticals

• A crucial component in effervescent tablets and powders (e.g., for vitamins or analgesics), reacting with carbonates to produce carbon dioxide for rapid dissolution.

• Used as an excipient in formulations to adjust pH, improve stability, and enhance the solubility of active ingredients.

3. "Green Chelant and Cleaning Booster" in Household & Industrial Cleaning

• A key ingredient in eco-friendly detergents and cleaners, effectively chelating and sequestering hard water ions (Ca²⁺, Mg²⁺) to improve cleaning efficiency and prevent scale.

• Used in metal cleaning and passivation treatments to remove oxides and rust without the environmental impact of strong mineral acids.

4. "Builder and Modifier" in Chemistry & Materials

• Acts as a plasticizer and cross-linking agent in the production of biodegradable polymers.

• Serves as a retarding agent in cement and plaster to control setting time.

Technological Breakthroughs and Sustainable Development

Fermentation Efficiency

• Continuous strain improvement through metabolic engineering has significantly increased fermentation yield and reduced production cycle times.

• Utilization of low-cost, non-food agricultural waste (e.g., molasses, cassava bagasse) as fermentation feedstocks enhances sustainability.

Purification and Crystallization

• Implementation of advanced membrane filtration and ion-exchange technologies ensures high purity and low levels of impurities like oxalate and sulfate.

• Controlled crystallization processes produce consistent particle size distributions optimal for various applications (e.g., powder flow, dissolution rate).

Green Manufacturing

• Process water is extensively recycled within the production plant, minimizing freshwater intake and wastewater discharge.

• Energy-efficient evaporation and drying technologies are employed to reduce the overall carbon footprint.

Quality and Compliance

• Rigorous quality control protocols ensure compliance with major international standards such as USP, EP, FCC, and JP.

• Certifications like ISO 9001, FSSC 22000, and Halal/Kosher cater to global market requirements.

Technical Advantages

Quality Advantages

• Assay (Anhydrous Basis): 99.5% - 100.5%

• Readily Carbonizable Substances: Passes test

• Oxalate: ≤ 100 ppm

Physical Characteristics

• Appearance: White crystalline powder or colorless crystals

• Solubility: Very soluble in water, freely soluble in ethanol (96%)

• Hygroscopicity: The anhydrous form is slightly hygroscopic.

Application Support

• Provides technical data sheets and formulation guidance for specific applications, such as optimal usage levels in beverages or compatibility in cleaning products.

• Offers sample support and troubleshooting for processing challenges.

Why Choose Us?

✅ High-purity products, in compliance with international standards
✅ 30+ Years Chemical Manufacturing Experience
✅ Strict QC with Batch Traceability
✅ Global logistics, supporting sea and air transportation
✅ Technical support, providing customized solutions
✅ Factory direct supply, with strong price competitiveness