Sodium citrate dihydrate

Sodium citrate dihydrate (CAS 6132-04-3), also known as trisodium citrate dihydrate, is the crystalline hydrated form of sodium citrate used across food, pharmaceutical, and industrial applications.

It functions primarily as a buffering agent, pH regulator, and sequestrant, stabilizing formulations by controlling acidity and binding metal ions that would otherwise degrade product quality.

In food and beverage manufacturing, it acts as an emulsifying salt in processed cheese and a buffering agent in carbonated drinks, sports beverages, and gelatin-based products.

Pharmaceutical formulators rely on it to stabilize anticoagulant solutions, oral medications, and effervescent tablet formulations where precise pH control is critical for the final product.

Personal care manufacturers use it to adjust pH in creams, shampoos, and cleansing products while chelating trace metals that accelerate oxidative degradation during the shelf life.

In water treatment, it functions as a sequestrant to control scaling and as a component in cleaning-in-place (CIP) formulations for various industrial systems and equipment.

Sodium citrate dihydrate is supplied as a white crystalline powder or granules. Standard grades include FCC (food-grade), USP, BP, and Ph. Eur., supporting procurement across regulated supply chains.

Technical grade is also available for industrial and water treatment applications where pharmacopeial certification is not required for the specific manufacturing process or end use.