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Citric acid anhydrous is a dry form of citric acid, presented as colorless crystals or white powder. It has a strong sour taste, low pH, and noticeable acidic properties in solution. It remains stable when dry but may absorb moisture in humid conditions, reverting to its hydrated form.
| Chemicla Formula | C6H8O7 |
|---|---|
| CAS No. | 77-92-9 |
| EINECS No. | 201-069-1 |
| MOQ | 1000KG |
| Delivery Time | 15~20 days |
| Standard | BP/USP/FCC/E330 |
| Start Port | Laem Chabang, Thailand |
| Certification | ISO, Kosher, Halal |
| Packaging | Kraft paper bags, plastic woven bags, PP and kraft paper composite bags or customized according to customer requirements. |
| Net Weight | 25kg/500kg/1000kg or customized according to customer requirements |
| Shelf Life | 3 years |
Citric acid anhydrous is derived from natural fruit acids and is primarily produced through the microbial fermentation of carbohydrate-rich substrates. This process involves fermentation, followed by purification, crystallization, and dehydration to obtain the anhydrous form.
1. Citric acid anhydrous is usually prepared by fermentation. This process uses microorganisms such as Aspergillus niger to ferment in sugar substances (such as molasses or corn syrup), and obtains high-purity citric acid through fermentation, filtration, concentration and crystallization.
This method is economical and environmentally friendly and suitable for food-grade applications.
2. Chemical synthesis method prepares citric acid through chemical reactions (such as esterification of citric acid). This method is mainly used in industrial production, with high cost and poor environmental friendliness, so it is not as common as fermentation in food-grade applications.
| Items | Standard |
| Assay | 99.5%-100.5% |
| Moisture | 0.5% Max |
| Oxalic Acid | 100 ppm Max |
| Sulphate | 150 ppm Max |
| Residue on Ignition (sulphated ash) | 0.05% Max |
| Heavy Metals | 10 ppm Max |
| Mercury | 1 ppm Max |
| Lead | 0.5 ppm Max |
| Arsenic | 1 ppm Max |
| Aluminium | 0.2 ppm Max |
| Bacterial Endotoxins | 0.5 IU/mg Max |
| Trilaurylamine | 0.1 ppm Max |
| Calcium | 200 ppm Max |
| Iron | 50 ppm Max |
| Chloride | 50 ppm Max |
Citric acid anhydrous is used as an acidulant in food and beverages to adjust pH, enhance flavor, extend shelf life, and as an auxiliary ingredient in fermentation to ensure product stability and flavor.
| Applications | Effects (with Citric Acid Anhydrous) |
| Confectionery (e.g., Hard Candy, Gummies) | Flavor Enhancer: Adds tartness, improves flavor profile, and enhances mouthfeel. |
| Canned Foods | Preservative: Lowers pH to inhibit microbial growth, extending shelf life and maintaining freshness. |
| Dairy Products (e.g., Yogurt, Cheese) | Acidity Regulator: Adjusts pH for balanced flavor and ensures product stability. |
| Fermented Foods (e.g., Bread, Alcohol) | Fermentation Aid: Regulates pH for a stable fermentation environment, improving fermentation efficiency and product quality. |
| Jellies, Candies, and Desserts | Gelling Agent: Works with pectin to help gel formation, improving texture and structure. |
| Convenience Foods (e.g., Instant Noodles, Ready Meals) | Preservative: Extends shelf life and preserves freshness by inhibiting microbial growth. |
| Condiments (e.g., Soy Sauce, Salad Dressings, Ketchup) | Acidity Regulator: Balances pH, enhances flavor, and extends product shelf life. |
| Baked Goods (e.g., Biscuits, Cakes) | Acidity Regulator: Adjusts dough pH, improving rise, texture, and consistency of baked goods. |
| Processed Meat Products (e.g., Sausages, Cured Meats) | Preservative: Helps extend shelf life by lowering pH and preventing bacterial growth. |
| Canned Vegetables and Fruits | Preservative: Regulates pH to prevent microbial growth, preserving color, texture, and nutritional value. |
| Ready-to-Eat Soups and Sauces | Acidity Regulator: Adjusts pH, balances flavor, and enhances shelf stability. |
| Ice Cream and Frozen Desserts | Acidity Regulator: Adjusts acidity for smoother texture and improves flavor, preventing an overly sweet taste. |
| Plant-Based Foods (e.g., Plant Milk, Vegan Meat) | Acidity Regulator: Adjusts pH to improve taste and stability in plant-based products. |
| Applications | Effects (with Citric Acid Anhydrous) |
| Soft Drinks | Acidity Regulator: Adjusts the pH to enhance the refreshing taste, providing a crisp, clean mouthfeel. |
| Fruit Juices | Flavor Enhancer: Boosts the natural acidity of fruit juices, enhancing flavor and adding brightness. |
| Sports Drinks | Electrolyte Balance: Regulates pH to help with the dissolution and absorption of electrolytes, improving the drink’s functionality. |
| Functional Beverages | pH Stabilizer: Ensures the stability and effectiveness of active ingredients, while maintaining flavor integrity. |
| Carbonated Beverages | Acidity Regulator: Increases tartness, enhances effervescence, and improves the sensory experience of carbonation. |
| Iced Tea | Flavor Enhancer: Enhances the acidity and refreshment level of iced tea, creating a balanced and refreshing taste. |
| Fruit Flavored Beverages | Flavor Enhancer: Intensifies the tartness of fruit-flavored drinks, making them more vibrant and appealing. |
| Ready-to-Drink Coffee/Tea | Acidity Regulator: Balances the pH to optimize the taste and freshness of pre-brewed coffee or tea. |
In the pharmaceutical industry, citric acid anhydrous is used as an acid-base regulator and buffer to adjust the pH of drugs and improve drug stability and bioavailability.
| Applications | Effects (with Citric Acid Anhydrous) |
| Drug Formulations | pH Regulator: Adjusts pH to ensure stability and efficacy of the drug. |
| Oral Solutions | Acidity Regulator: Improves taste and stability of oral solutions. |
| Injectables | pH Regulator: Maintains stability and bioavailability of injectable drugs. |
| Extended-Release Medications | Stabilizer: Ensures consistent and stable release of the drug in the body. |
| Vaccine Production | pH Regulator: Regulates pH during vaccine production to maintain active ingredients’ stability. |
Citric acid anhydrous is used in cosmetics to adjust pH, ensure product compatibility with the skin, and help stabilize active ingredients in products.
| Applications | Effects (with Citric Acid Anhydrous) |
| Skincare Products | Acidity Regulator: Adjusts pH to suit different skin types. |
| Shampoos and Conditioners | Acidity Regulator: Improves hair shine and smoothness. |
| Exfoliating Products | Exfoliating Effect: Removes dead skin cells and promotes skin renewal. |
| Sunscreens | Preservative: Extends product shelf life and ensures stability. |
| Cosmetics (e.g., Toners, Astringents) | Acidity Regulator: Helps products be compatible with the skin by adjusting pH. |
As an ingredient in detergents, citric acid anhydrous can effectively remove scale, mineral deposits and other dirt, and is often used to clean food processing equipment and kitchen facilities.
| Applications | Effects (with Citric Acid Anhydrous) |
| Cleaning Agents | Acidity Regulator: Adjusts pH to enhance cleaning effectiveness. |
| Detergents | Acidity Regulator: Improves cleaning performance, removes stains and grease. |
| Disinfectants | Bactericidal Effect: Enhances disinfecting power and inhibits microbial growth. |
| Descaling Agents | Descaling Effect: Removes scale and prolongs equipment lifespan. |
| Degreasing Products | Emulsifying Effect: Breaks down grease and improves cleaning efficiency. |
In agriculture and horticulture, citric acid anhydrous is used to adjust soil pH and improve soil conditions, thereby promoting healthy plant growth.
| Applications | Effects (with Citric Acid Anhydrous) |
| Fertilizer Additive | Acidity Regulator: Adjusts soil pH to enhance nutrient absorption by plants. |
| Soil Improver | Acidity Regulator: Improves soil quality and optimizes plant growth environment. |
| Pesticide Additive | Enhances Pesticide Effect: Increases pesticide activity for effective pest control. |
| Plant Growth Regulator | Promotes Plant Growth: Supports healthy plant growth and improves growth efficiency. |
| Water Quality Regulator | Water Quality Improvement: Adjusts irrigation water pH to reduce negative effects of minerals on plants. |
In the industrial field, citric acid anhydrous is used as a catalyst or auxiliary agent for chemical reactions, supporting various chemical reaction processes and improving production efficiency.
| Applications | Effects (with Citric Acid Anhydrous) |
| Metal Cleaning | Acidity Regulator: Removes oxidation and scale from metal surfaces, improving surface cleanliness. |
| Water Treatment | Acidity Regulator: Adjusts water pH and removes minerals and impurities. |
| Leather Treatment | Texture Improvement: Adjusts leather pH to enhance texture and gloss. |
| Oil and Gas Industry | Enhances Extraction Efficiency: Improves acidity for better extraction efficiency. |
| Industrial Cleaners | Cleaning Effect: Removes grease, scale, and tough contaminants from equipment and pipes. |
The development trend of citric acid anhydrous includes the transition to more environmentally friendly and economical production processes, such as improved fermentation technology and optimized liquid fermentation methods. These technologies not only improve production efficiency and product purity, but also help reduce environmental impact.
In addition, as consumers’ demand for natural and healthy foods increases, manufacturers are also exploring safer production methods that meet food-grade standards.
| Region | Application Area | Regulations | Usage Standards |
| United States | Food Additives | Anhydrous Citric Acid is listed by the FDA (Food and Drug Administration) as GRAS (Generally Recognized As Safe). | Permitted in food and beverages for acid regulation, flavor enhancement, and preservation. Must meet safety standards. |
| Cosmetics | Anhydrous Citric Acid used as a pH adjuster and moisturizing agent must comply with FDA’s cosmetics regulations. | Ensures safe use in cosmetic formulations. | |
| European Union | Food Additives | Anhydrous Citric Acid is approved by EFSA (European Food Safety Authority) as E330 in the European Food Code. | Regulated by maximum usage limits and allowed in various food and beverage products. |
| Cosmetics | Anhydrous Citric Acid in cosmetics is regulated under the EU Cosmetics Regulation (EC No. 1223/2009). | Must be used as a pH adjuster or humectant, with safety assessments required. | |
| China | Food Additives | Anhydrous Citric Acid is included in the National Food Safety Standard for Food Additives (GB 2760-2014). | Used for acid regulation, preservation, and flavor enhancement with specified limits. |
| Cosmetics | Anhydrous Citric Acid used in cosmetics must follow the Cosmetics Hygiene Standards (GB 7916-2009). | Used as a pH adjuster, moisturizer, etc., meeting the necessary safety standards. | |
| Japan | Food Additives | Anhydrous Citric Acid is approved under the Japanese Food Sanitation Law. | Used for acid regulation, preservation, and flavor enhancement in food and beverages. |
| Cosmetics | Anhydrous Citric Acid is allowed as a pH adjuster and moisturizing agent under Japanese Cosmetics Sanitation Law. | Must ensure safety in cosmetic products. | |
| Australia & New Zealand | Food Additives | Anhydrous Citric Acid is regulated by the FSANZ (Food Standards Australia New Zealand) Food Standards Code. | Approved for acid regulation, preservation, and flavor enhancement with usage limits. |
| Cosmetics | Anhydrous Citric Acid is used in cosmetics as a pH adjuster and antioxidant. | Must comply with Australian and New Zealand safety regulations. | |
| India | Food Additives | Anhydrous Citric Acid is approved by FSSAI (Food Safety and Standards Authority of India). | Used in acid regulation, preservation, and flavor enhancement in foods. |
| Cosmetics | Anhydrous Citric Acid is included in Indian Cosmetics Regulations. | Used for pH adjustment and as an antioxidant in cosmetic formulations. |
This product is safe for the intended use. Avoid inhalation of dust, contact with eyes and prolonged contact with skin by applying suitable protective measures and personal hygiene. For full safety information and necessary precaution, please refer to the respective Material Safety Data Sheet.
The information given in this publication is based on our current knowledge and experience, and may be used at your discretion and risk. It does not relieve you from carrying out your own precautions and tests. We do not assume any liability in connection with your product or its use. You must comply with all applicable laws and regulations, and observe all third-party rights.
XITRICAL is a leading manufacturer of Citrates Made In Thailand
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