Citric acid anhydrous is an anhydrous form of citric acid that appears as colorless crystals or white powder. It has a strong sour taste and a low pH value. It usually exhibits obvious acidic characteristics in solution. It is relatively stable in a dry state, but may absorb moisture and reconvert to a hydrated form in a high humidity environment.
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 |
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.
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.
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.
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.
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