Description

Potassium Polymetaphosphate is a high-purity inorganic salt widely used as a functional additive and processing aid. Its unique polymeric structure provides valuable properties for controlling texture, sequestering ions, and modifying rheology in industrial formulations. This compound is essential for manufacturers in the food, water treatment, and detergent industries seeking consistent performance and regulatory compliance. We supply Potassium Polymetaphosphate CAS NO 7990-53-6 to meet the stringent demands of global B2B customers.

Application

• Food Industry: Used as an emulsifying salt, texture modifier, and moisture-retaining agent in processed cheeses, meat products, and powdered foods.
• Water Treatment: Acts as a scale and corrosion inhibitor in industrial cooling and boiler water systems.
• Detergents & Cleaners: Functions as a builder and sequestrant to enhance cleaning efficiency by inactivating water hardness ions.
• Ceramics & Glass: Serves as a fluxing agent to lower melting temperatures and modify the properties of ceramic glazes and glass batches.
• Oil Drilling Fluids: Employed as a thinning agent and for controlling rheology in drilling mud formulations.
• Metal Surface Treatment: Used in processes for cleaning, phosphating, and providing temporary corrosion protection on metal surfaces.
• Laboratory & Research: Utilized as a reagent or standard in analytical chemistry and materials science research.

Basic Information

Product Name	Potassium Polymetaphosphate
CAS No.	7990-53-6
Molecular Formula	(KPO3)n
Molecular Weight	Variable (Polymer)
Synonyms	Potassium Metaphosphate; Potassium Polyphosphate; Graham's Salt; Potassium Hexametaphosphate; K-Polyphosphate; Kurrol's potassium salt; Potassium phosphate (KPO3)n; Insoluble potassium metaphosphate
EINECS	232-212-6

Quality Control

Our Potassium Polymetaphosphate is manufactured under a strict quality management system. Each batch is analyzed to ensure it meets precise specifications for purity, composition, and performance. We can provide material compliant with relevant standards such as FCC (Food Chemicals Codex) for food-grade applications. A comprehensive Certificate of Analysis (COA) detailing all test results is available for every shipment upon request.

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 product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent caking or degradation due to absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White powder or granules
Identification (IR)	Conforms
Assay (as P2O5)	≥ 58.0 %
Potassium (as K2O)	≥ 38.0 %
pH (1% Solution)	6.0 - 8.0
Water Insoluble Matter	≤ 0.5 %
Loss on Drying	≤ 1.0 %
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.