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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) |
| 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.
Citric acid anhydrous is used in cosmetics to adjust pH, ensure product compatibility with the skin, and help stabilize active ingredients in products.
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.
In agriculture and horticulture, citric acid anhydrous is used to adjust soil pH and improve soil conditions, thereby promoting healthy plant growth.
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.
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.
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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