Sodium Citrate

Sodium citrate is a white crystalline powder or granular substance derived from citric acid. It is highly soluble in water and has a variety of applications in different industries. Sodium citrate is commonly used as a food additive, acting as a flavor enhancer, acidity regulator, and preservative in various food and beverage products. In water treatment, it serves as a chelating agent, helping to bind and remove certain metal ions. Sodium citrate is also utilized in pharmaceutical formulations, cosmetic products, and as an anticoagulant in medical applications. It has a sour and slightly salty taste. Its specifications are:

  • Chemical Formula: Na3C6H5O7
  • Physical State: White crystalline powder or granules
  • Solubility: Highly soluble in water
  • Taste: Sour and slightly salty taste
  • pH: Alkaline substance with a pH above 7 in solution
  • Density: Approximately 1.63 g/cm³
  • Melting Point: Decomposes above 300 °C (572 °F)
  • Odor: Odorless

Sodium Citrate Uses in Water Treatment

Sodium citrate plays several important roles in water treatment processes. It serves as a chelating agent, helping to bind and remove certain metal ions, particularly calcium and magnesium, which can cause scaling and interfere with the efficiency of water treatment chemicals. Sodium citrate is used in water softening applications to prevent scale formation and enhance the removal of hardness minerals. It also acts as a pH regulator, helping to stabilize and control the acidity or alkalinity of water. Sodium citrate is utilized in specific water treatment systems, such as cooling towers and boilers, to mitigate the negative effects of scaling and improve overall water quality. Its compatibility with other water treatment chemicals and its ability to effectively chelate and control pH make it a valuable component in water treatment processes. Order sodium citrate from Water Solutions Unlimited.

water treatment process

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