Description

Phosphoric Acid, Trisodium Salt, Decahydrate is a high-purity, hydrated inorganic salt widely utilized as a buffering and sequestering agent. Its consistent quality and reliable performance make it a critical component in formulations requiring precise pH control and metal ion chelation. This product is essential for manufacturers in the food processing, detergent, water treatment, and pharmaceutical industries.

Application

• Food Industry: Used as an emulsifier, pH regulator, and nutrient source in processed cheeses, cereals, and baked goods.
• Detergent & Cleaning Formulations: Acts as a water softener and builder to enhance cleaning efficiency by sequestering calcium and magnesium ions.
• Water Treatment: Employed as a corrosion inhibitor and scale control agent in boiler and cooling water systems.
• Pharmaceuticals: Serves as a buffering agent in various medicinal preparations and dialysis solutions.
• Industrial Processes: Functions as a dispersing agent in ceramic production and a dyeing auxiliary in the textile industry.
• Laboratory & Research: Used in the preparation of buffer solutions for biochemical and molecular biology applications.

Basic Information

Product Name	Phosphoric Acid, Trisodium Salt, Decahydrate
CAS No.	10361-89-4
Molecular Formula	Na3PO4·10H2O
Molecular Weight	380.12 g/mol
Synonyms	Trisodium Phosphate Decahydrate; Sodium Phosphate Tribasic Decahydrate; TSP-10; TSP Decahydrate; Phosphoric Acid Trisodium Salt Decahydrate; Sodium Orthophosphate; Na3PO4·10H2O; Tertiary Sodium Phosphate
EINECS	233-719-3

Quality Control

Our Phosphoric Acid, Trisodium Salt, Decahydrate is manufactured under a stringent quality management system. Each batch is tested to ensure it meets specifications for identity, purity, and heavy metal content, aligning with standards such as Food Chemical Codex (FCC) and industrial grade requirements. A Certificate of Analysis (COA) documenting these results is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in original packaging away from strong acids and organic solvents to maintain stability and prevent caking.

Specification

Item	Specification
Appearance	White or colorless crystals
Identification (IR)	Conforms
Assay (Na3PO4·10H2O)	≥ 98.0 %
pH (1% Solution)	11.5 - 12.5
Loss on Drying	45.0 - 47.0 %
Water Insoluble Matter	≤ 0.2 %
Chloride (as Cl)	≤ 0.1 %
Sulfate (as SO4)	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm
Arsenic (As)	≤ 3 ppm

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