Description

Tri-Sodium Citrate 5, 5-Hydrate is the pentahydrate form of trisodium citrate, a versatile and widely used sodium salt of citric acid. This compound is valued for its excellent buffering, chelating, and emulsifying properties, making it a critical additive in numerous industrial and consumer processes. It is an essential ingredient for manufacturers in the food & beverage, pharmaceutical, detergent, and water treatment industries seeking a reliable, multi-functional agent.

Application

• Food & Beverage Industry: Primarily used as an acidity regulator, emulsifier, and preservative in dairy products (processed cheese), beverages, jams, and confectionery.
• Pharmaceuticals: Serves as an anticoagulant in blood collection tubes, a buffering agent in formulations, and an alkalizing agent in effervescent products.
• Detergents & Cleaning Agents: Acts as a powerful builder and chelating agent in liquid and powder detergents, enhancing cleaning efficiency by sequestering hard water ions.
• Water Treatment: Utilized to prevent scale formation and corrosion in industrial water systems by chelating calcium and magnesium ions.
• Personal Care: Incorporated into cosmetics and personal care products as a pH adjuster and chelating agent to stabilize formulations.
• Industrial Processes: Functions as a complexing agent in electroplating baths, textile processing, and concrete setting retarders.

Basic Information

Product Name	Tri-Sodium Citrate 5, 5-Hydrate
CAS No.	6858-44-2
Molecular Formula	C6H5Na3O7 · 5H2O
Molecular Weight	348.13 g/mol
Synonyms	Trisodium Citrate Dihydrate (common misnomer), Sodium Citrate Tribasic Pentahydrate, Citrosodine, Citric Acid Trisodium Salt Pentahydrate, E331(iii), 2-Hydroxy-1,2,3-propanetricarboxylic Acid Trisodium Salt Pentahydrate, Natriumcitrat, TSC
EINECS	200-675-3 (for the anhydrous form)

Quality Control

Our Tri-Sodium Citrate 5, 5-Hydrate is produced under strict quality management systems. We offer grades compliant with major pharmacopoeial standards including USP-NF, Ph. Eur., BP, and JP, as well as FCC for food applications. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic nature, the product must be kept in original packaging or moisture-proof containers to prevent caking and degradation. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep away from strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (on dried basis)	99.0% - 100.5%
pH (5% solution)	7.5 - 9.0
Loss on Drying	25.0% - 30.0%
Water Insoluble Matter	≤ 0.005%
Chloride (Cl)	≤ 0.001%
Sulfate (SO4)	≤ 0.005%
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 10 ppm
Oxalate	Passes test
Readily Carbonizable Substances	Passes test

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.