Sodium Citrate

Product Name: Sodium Citrate

Purity Grade: Food Grade

CAS Number: 68-04-2

Size: 100 micrometre in average

Appearance: clear fine powder

Other Features: Hydrophilic

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Sodium citrate, also known as trisodium citrate or citric acid trisodium salt, is a white crystalline powder with a salty, sour taste. It is derived from citric acid, which is naturally found in citrus fruits such as oranges and lemons. Sodium citrate is commonly used as a food additive due to its preservative, emulsifying, and flavor-enhancing properties.

Applications in the Food Industry

1. Food Preservation
Sodium citrate acts as a reliable preservative in numerous food products, extending their shelf life by inhibiting the growth of bacteria and mold. It is commonly used in processed meats, cheese, sauces, and other condiments to maintain their freshness.
2. Emulsification
Due to its emulsifying properties, sodium citrate can stabilize and improve the texture of various food products. It helps prevent oil and water from separating, resulting in creamy and well-blended formulations. This makes it a popular ingredient in processed cheese, ice cream, mayonnaise, and salad dressings.
3. Flavor Enhancement
With its mild acidity, sodium citrate can enhance and balance the flavors of a wide range of food products. It is commonly used in carbonated beverages, jellies, and other confections to add a tangy taste. Furthermore, sodium citrate can reduce the bitterness of certain ingredients, making it an ideal choice for some medications and dietary supplements.

Pharmaceutical and Medical Applications

1. pH Buffer
Sodium citrate is widely used as a pH buffer in many pharmaceutical formulations, including tablets, syrups, and injections. It helps to maintain the optimal pH range, ensuring the stability and effectiveness of medications.
2. Anticoagulant
In the medical field, sodium citrate is commonly used as an anticoagulant in blood collection tubes. It prevents clotting by binding calcium ions, allowing for accurate and safe blood testing procedures.
3. Kidney Stone Prevention
Sodium citrate can also aid in preventing the formation of certain types of kidney stones. It helps to increase urine pH levels, reducing the risk of crystal formation and subsequent stone development.

Industrial Applications

1. Cleaning Agent
Sodium citrate's chelating properties make it an effective cleaning agent in various industries. It helps remove mineral deposits and prevents the buildup of limescale in pipes and equipment. It is widely used in the cleaning of boilers, water systems, and evaporative coolers.
2. Detergent Additive
In the detergent industry, sodium citrate serves as an additive to improve the effectiveness of laundry and dishwashing products. It assists in removing hard water ions, enhancing the cleaning performance and preventing the redeposition of dirt and stains.
3. Electroplating
Sodium citrate is used in electroplating applications as a complexing agent. It helps control metal ion solutions, enhancing the electroplating process and ensuring uniform coating.

Environmental Applications

1. Water Treatment
Sodium citrate plays a vital role in water treatment processes due to its ability to sequester metal ions. It helps remove heavy metals and other contaminants, improving water quality and safety.
2. Chelation Therapy
In the medical field, sodium citrate is used as a chelating agent in treatments for heavy metal poisoning. It forms stable complexes with toxic metal ions, facilitating their elimination from the body.