ICL Group Tetrasodium Pyrophosphate Anhydrous (TSPP) TG

ICL Group Tetrasodium Pyrophosphate Anhydrous (TSPP) TG is presented in granular form and serves as a buffering agent with sequestering capabilities. It finds application in home care and industrial & institutional (I&I) cleaning products such as hard surface cleaners, upholstery cleaners, metal cleaners, steam cleaners, alkaline cleaners, laundry detergents, and scouring powders.

Chemical Name: Tetrasodium pyrophosphate

CAS Number: 7722-88-5

Chemical Family: Phosphates, Sodium Salts

Grade: Technical Grade

Applicable Processes: Drilling Applications, Industrial Water Treatment, Kaolin Clay Processing, Slurry Deflocculation, Soil Stabilization, Textiles Manufacturing, Water Treatment, Wood Pulping

Synonyms: E450(iii) , Pyrophosphoric Acid Tetrasodium Salt, Sodium Pyrophosphate, Tetrasodium Diphosphate, TSPP

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Enhanced TDS

Identification & Functionality

Features & Benefits

HII Features
Industrial Additives Features
Key Properties
  • Sequestration: The phenomenon of binding metal ions in soluble complexes, thereby preventing the formation of undesirable precipitates or the occurrence of other detrimental side reactions. For example, tetrasodium Pyrophosphate will combine with calcium and magnesium ions to form soluble but undissociated complexes, which remain in solution in the presence of precipitating anions.
  • Buffering:The agent that provides the desired pH level and maintains the proper alkalinity in solution. Tetrasodium pyrophosphate has modest buffer capacity; that is, it exhibits a relatively constant pH or degree of alkalinity in solution regardless of the concentration or temperature of the solution.
  • Deflocculation: The process by which aggregates of particles are broken up into individual particles that are then dispersed throughout the solution such as the dispersion of household soils in water.

Applications & Uses


Physical Form
White granular
Typical Properties
ValueUnitsTest Method / Conditions
Bulk Density56lbs/ft³-
Molecular Weight265.9--
ValueUnitsTest Method / Conditions
Assay (as Na₄P₂O₇)min. 95.0%-
Orthophosphatemax. 1.0%-
pH (at 1% Solution)9.9 - 10.6--
Insoluble Substancesmax. 0.05%-
Sizing (USSS, Through 20 mesh)min. 90%-
Sizing (USSS, Through 100 mesh)max. 20%-

Regulatory & Compliance

Certifications & Compliance

Packaging & Availability

Packaging Type
Supplied by
Packaging Information
  • 50 lb. multiwall bags
  • Bulk

Storage & Handling

Shelf Life
24 months