TETRASODIUM PYROPHOSPHATE- ▸ Water softener: Sequesters hardness ions in water and cleaning systems.
- ▸ Detergent builder: Builder and sequestrant in household and industrial detergents.
- ▸ Metal cleaning: Cleaning compound and rust-stain remover.
- ▸ Dispersant: Dispersing agent in textile, clay, and paper processing.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →Tetrasodium Pyrophosphate (CAS 7722-88-5) is a sodium polyphosphate (Na4P2O7). it is used as a water softener, detergent builder, emulsifying agent, and sequestrant, and in metal cleaning, water treatment, and textile and clay processing.
Frequently Asked Questions
What is tetrasodium pyrophosphate used for?
Tetrasodium pyrophosphate (TSPP, Na4P2O7, CAS 7722-88-5) is a sodium polyphosphate used industrially as a water softener, detergent builder, and sequestrant. It sequesters hardness ions in cleaning and water-treatment systems and serves as a dispersant in textile, clay, and paper processing, plus a constituent of metal-cleaning and rust-removal compounds. We supply it as a powder in bulk for industrial formulation.
Is tetrasodium pyrophosphate the same as baking soda?
No. Tetrasodium pyrophosphate is a sodium polyphosphate, Na4P2O7 (CAS 7722-88-5), while baking soda is sodium bicarbonate, NaHCO3. They are chemically distinct compounds with different functions; TSPP acts as a sequestrant and detergent builder, not a leavening agent.
Is tetrasodium pyrophosphate water soluble?
Yes. Tetrasodium pyrophosphate is soluble in water, which is the basis of its function as a water softener, sequestrant, and dispersant. Solubility and dissolution behavior for a specific lot are detailed on the CoA and SDS.
What is the HS code for tetrasodium pyrophosphate?
Tetrasodium pyrophosphate classifies under HS 2835.39 (polyphosphates: other). Confirm the destination-country tariff line with your broker, as national subheadings can differ. We provide commercial documentation to support customs clearance.
What does bulk tetrasodium pyrophosphate cost and how is it packaged?
Pricing is quote-based and depends on grade, volume, and packaging. We supply TSPP powder in bulk industrial quantities (bags, supersacks, and larger). Request a bulk quote with your target volume and packaging for current pricing, CoA, and SDS.