Description

Trisodium 2-Hydroxypropane-1,2,3-Tricarboxylate is the trisodium salt of citric acid, a high-purity chelating agent and sequestrant widely used in industrial and technical applications. Its primary value lies in its ability to effectively bind metal ions, preventing undesired precipitation and catalysis, which is critical for process stability and product quality. This compound is essential for manufacturers in sectors such as cleaning, water treatment, and chemical synthesis where reliable metal ion control is required.

Application

• Industrial Cleaning & Detergent Formulations: Acts as a powerful builder and sequestrant to inactivate water hardness ions (calcium, magnesium), enhancing surfactant efficiency and preventing scale in machine dishwashing and laundry products.
• Water Treatment: Used for scale inhibition and as a dispersing agent in cooling water, boiler water, and reverse osmosis systems to control deposits of calcium carbonate and other salts.
• Chemical Synthesis & Catalysis: Serves as a buffering agent and metal chelator in various chemical processes to control pH and sequester trace metal impurities that can catalyze side reactions.
• Textile & Leather Processing: Functions as a chelating agent in dyeing and finishing baths to complex with metal ions that can affect color fastness and fabric quality.
• Agrochemicals: Can be incorporated into certain fertilizer and pesticide formulations to improve stability and bioavailability by chelating micronutrients.
• Laboratory & Analytical Reagent: Employed as a standard or buffer component in various analytical procedures and biochemical applications.

Basic Information

Product Name	Trisodium 2-Hydroxypropane-1,2,3-Tricarboxylate
CAS No.	8055-55-8
Molecular Formula	C6H5Na3O7
Molecular Weight	258.07 g/mol
Synonyms	Trisodium Citrate; Sodium Citrate Tribasic; Citric Acid Trisodium Salt; Natriumcitrat; E331(iii); 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, trisodium salt; 2-Hydroxy-1,2,3-propanetricarboxylic acid trisodium salt
EINECS	232-509-9

Quality Control

Our Trisodium 2-Hydroxypropane-1,2,3-Tricarboxylate is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, heavy metal content, and loss on drying are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after initial opening to prevent absorption of atmospheric moisture, which can lead to caking or reduced flowability.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 99.0%
pH (5% Solution)	7.5 - 9.0
Loss on Drying	≤ 11.0 %
Heavy Metals (as Pb)	≤ 10 ppm
Chloride (Cl)	≤ 50 ppm
Sulfate (SO4)	≤ 150 ppm

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