Description

Sodium Decametaphosphoric Acid is a high-purity, inorganic polyphosphate compound, also known as Sodium Decametaphosphate. This versatile chemical is valued for its powerful sequestering, dispersing, and water-softening properties, making it a critical processing agent in multiple industries. It is essential for manufacturers and formulators requiring a reliable, high-performance phosphate source for complexing metal ions and controlling scale. Key sectors that utilize this product include industrial water treatment, detergent formulation, textile processing, and ceramic production.

Application

• Industrial Water Treatment: Acts as a highly effective scale and corrosion inhibitor in cooling towers, boilers, and reverse osmosis systems by sequestering calcium, magnesium, and other metal ions.
• Detergent & Cleaning Formulations: Serves as a superior builder and chelating agent in industrial and institutional cleaning products to enhance surfactant efficiency and prevent dirt redeposition.
• Textile Processing: Used as a dispersing and sequestering agent in dyeing and bleaching baths to improve color uniformity and prevent metal-ion catalyzed fiber degradation.
• Ceramic & Clay Production: Functions as a powerful deflocculant to control slurry viscosity and improve the workability and casting properties of ceramic slips.
• Oilfield Applications: Employed in drilling muds and completion fluids as a thinner and scale preventer to maintain fluid rheology and protect equipment.
• Food Processing (Food Grade): Used as a sequestrant, texturizer, and emulsifying salt in certain food applications where approved (subject to specific grade and regulatory compliance).
• Metal Surface Treatment: Assists in cleaning and phosphatizing metal surfaces prior to painting or coating by chelating interfering ions.
• Pulp & Paper Manufacturing: Helps in peroxide bleaching stabilization and as a dispersant to control pitch and improve paper quality.

Basic Information

Product Name	Sodium Decametaphosphoric Acid
CAS No.	35340-88-6
Molecular Formula	Na10P10O30 or (NaPO3)10
Molecular Weight	~ 1019.6 g/mol
Synonyms	Sodium Decametaphosphate; Decasodium Decametaphosphate; Sodium Polyphosphate, Glassy; Graham's Salt (high molecular weight form); Sodium Metaphosphate; SHMP (Sodium Hexametaphosphate, related compound); Calgon S; Kurrol's salt; Polyphosphoric acid, sodium salt; EINECS 252-539-9
EINECS	252-539-9

Quality Control

Our Sodium Decametaphosphoric Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for assay, phosphate content, and impurity profiles. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing key parameters such as P2O5 content, pH, and heavy metal limits. Our production can align with various industry standards, including technical, food (FCC), and high-purity grades, upon request.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive) and must be stored in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture and CO2, which can affect product performance. Store away from strong acids and strong alkalis.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (as Na10P10O30)	≥ 95.0%
P2O5 Content	60.0 - 63.0 %
pH (1% Solution)	5.5 - 7.5
Water Insoluble Matter	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 10 ppm
Loss on Drying	≤ 5.0 %

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