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Trisodium Citrate 2-Hydrate (CAS No. 6132-04-3) from the manufacturer Dr. Paul Lohmann® is a high-quality raw material. As a leading European global supplier, we offer Trisodium Citrate in customizable particle sizes and purities for a wide range of professional applications.
Trisodium Citrate 2-Hydrate is the dihydrate form of trisodium salt of citric acid. It appears as a white, crystalline powder and is highly soluble in water. Due to its buffering capacity and chelating properties, it is widely used across pharmaceutical, food, and industrial sectors.
| Formula | C6H5Na3O7 * 2H2O |
| Molecular weight | 294.1 g/mol |
| CAS No.: | 6132-04-3 |
| EINECS No.: | 200-675-3 |
| HS No.: | 29181500 |
| Product number | Product parameter | Storage conditions | Retest period | Additional information |
|---|---|---|---|
| 502009001 |
| Keep well closed, dry and at room temperature; 12 months | API documentation available |
| 502009002 |
| Keep well closed, dry and at room temperature; 36 months | |
| 502009003 |
| Keep well closed, dry and at room temperature; 36 months | API documentation available |
| 502009007 |
| Keep well closed, dry and at room temperature; 36 months | |
| 502009008 |
| Keep well closed, dry and at room temperature; 36 months | API documentation available |
| 502009016 |
| Keep well closed, dry and at room temperature.; 36 months | API documentation available |
| 502009011 |
| Keep well closed, dry and at room temperature; 36 months |
++ > 100 g/l | + 10 - 100 g/l | − 1 - 10 g/l | −− < 1 g/l
The solubility specified here was measured in water. The solubility is influenced by many factors in the application.
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Trisodium Citrate Dihydrate is widely used in the pharmaceutical industry as a multifunctional excipient. One of its primary roles is pH regulation in liquid formulations such as infusions, injections, and ophthalmic solutions. As part of citrate buffer systems, it helps maintain a stable pH, which is crucial for the stability of active ingredients and for ensuring patient comfort. In addition, it acts as a chelating agent by binding multivalent metal ions like calcium and iron, thereby preventing unwanted precipitation or interactions with other formulation components. Another important application is its use as an anticoagulant in blood preservation. By binding calcium ions, trisodium citrate inhibits blood clotting and enables the safe storage of blood products over extended periods.
In the food and beverage industry, Trisodium Citrate Dihydrate (E331 (iii)) is valued as a versatile, multifunctional additive. It is commonly used as an acidity regulator in soft drinks, jams, dairy products, and desserts to help manufacturers control and stabilize the pH of their products. It is commonly used in processed cheese production where Trisodium Citrate acts as an emulsifying salt, ensuring a smooth, uniform blend of fat and water for consistent texture and meltability. Trisodium Citrate also enhances flavors, improving the overall sensory experience of the final product. Moreover, in sport beverages it serves as an electrolyte contributing to mineral balance and hydration. Its high solubility and food-grade quality meet the strict standards required for use in modern food manufacturing.
Trisodium Citrate 2-Hydrate (Lohtragon® B09) for construction chemicals effectively delays setting times in cement and gypsum systems. This allows for longer processing windows, better control during application, and improved surface finishes — without sacrificing final strength.
In metal finishing, Lohtragon® B09 enhances plating quality by improving conductivity, stabilizing pH, and reducing precipitation. This results in uniform coatings, longer bath life, and less energy use.
As a water softener and pH regulator, Trisodium Citrate Dihydrate improves detergent performance in home care products. It boosts cleaning efficiency and formulation stability.
Lohtragon® B09 supports complex chemical reactions by regulating metal ion activity and maintaining stable pH levels. It improves process control, yields, and catalyst performance.
The information given on this Website corresponds to our current knowledge. We warrant in the frame of our General Terms and Conditions of Sale that our products are manufactured in accordance with the specifications. However, we disclaim any liability with regard to the suitability of our products for a particular purpose or application or their compatibility with other substances. Tests have to be performed by the customer who also bears the risk in this respect. Nothing herein shall be construed as a recommendation to use our products in conflict with third parties' rights.
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