Emulsification and buffering
JECFA recognizes emulsifier and buffering functions. TSPP can influence pH, protein behavior and emulsion stability.
Food grade phosphate · Sodium diphosphate · INS 450(iii)
Food Grade Tetrasodium Pyrophosphate (TSPP)
Tetrasodium pyrophosphate is an alkaline, water-soluble sodium diphosphate used in selected food systems for emulsification, buffering, sequestration and water management.
- CAS number
- 7722-88-5
- INS number
- 450(iii)
- Formula
- Na4P2O7
- MOQ
- 500 kg
Reference assay96.5–100.5%
Standard packing25 kg bag
Container loading20 MT / 20' FCL
QualificationCOA and certificates on request
Direct product answer
What is food grade tetrasodium pyrophosphate?
Food grade tetrasodium pyrophosphate (TSPP), also called tetrasodium diphosphate, is INS 450(iii). The supplied anhydrous grade is identified as Na4P2O7, CAS 7722-88-5.
This page separates the supplied commercial specification from independent identity references. Legal use, dosage and documentation must be confirmed for the destination market and exact food application.
Functional roles
Why is TSPP used in food processing?
Performance depends on grade, dosage, formulation, process conditions and applicable food rules.
Sequestration and water management
TSPP can bind selected metal ions and is used in suitable dairy, meat, cheese and beverage formulations.
Food application screening
Common food grade TSPP applications
These are application-screening areas, not universal use approvals or guaranteed outcomes.
Processed meat
Evaluate water retention, binding, yield, texture and phosphate balance in the actual protein and salt system.
Processed cheese
May support emulsification, mineral balance, melt and texture when used in a qualified emulsifying-salt system.
Dairy products
Screen buffering, water management and protein interactions in the complete formulation.
Beverages
Evaluate pH, clarity, taste and mineral compatibility before commercial use.
Dry blends
Confirm flow, dissolution sequence and compatibility with acids, proteins and other mineral salts.
Compound phosphates
TSPP may be blended with other permitted phosphates after performance and regulatory review.
Supplied technical data
Food grade TSPP reference specification
The values below reproduce the supplied product sheet. They are not a batch COA or a universal regulatory standard. Confirm the current signed specification and methods before approval.
| Test item | Unit | Specification |
|---|---|---|
| Tetrasodium pyrophosphate content | % | 96.5–100.5 |
| P2O5 | % | 52.5–54 |
| Loss on drying | % | ≤0.5 |
| Insoluble matter | % | ≤0.20 |
| pH of 10 g/L solution | — | 9.9–10.7 |
| Orthophosphate | — | Passes test |
| Arsenic (As) | % | ≤0.0003 |
| Heavy metals (as Pb) | % | ≤0.001 |
| Fluoride (as F) | % | ≤0.005 |
| Lead (Pb) | % | ≤0.0004 |
| Ignition loss | % | ≤0.5 |
| Appearance | — | White powder or granular |
Specification note: The supplied sheet describes an anhydrous-style loss limit. JECFA also recognizes a decahydrate form with different ignition loss, so state the required hydration form on the purchase specification.
Qualification support
Documents and evidence to request
Product documents
Request the current specification/TDS, SDS, test methods and representative or batch COA.
Food qualification
Request applicable HACCP, Kosher, Halal and ISO documents; verify product, site, scope and validity.
Independent reference
Review the FAO/WHO JECFA tetrasodium pyrophosphate monograph for identity context.
Storage and handling
Protect TSPP from heat and moisture
- TemperatureThe supplied guidance states storage at no more than 30°C.
- EnvironmentKeep sealed in a cool, dry, ventilated place away from sunlight, heat, humidity and contamination.
- Workplace controlsFollow the current SDS and site procedures for dust control, hygiene and personal protection.
Buyer questions
Food grade TSPP FAQ
What is food grade TSPP used for?
Tetrasodium pyrophosphate is an alkaline, water-soluble sodium diphosphate used in selected food systems for emulsification, buffering, sequestration and water management. Confirm legal use and performance for the exact application.
What is the reference assay?
The supplied sheet states 96.5–100.5%. Use the current signed specification and batch COA for acceptance.
What are the packing and minimum order?
The reference is 25 kg per bag, 20 MT per 20-foot container and a 500 kg minimum order.
Which documents should a buyer request?
Request specification/TDS, SDS, COA and applicable HACCP, Kosher, Halal and ISO documents for the exact source.
What information is needed for a quotation?
Provide grade or hydration form, application, specification, quantity, packing, destination, documents and delivery date.
Editorial review: Bespring Chemical technical and export team · Last reviewed 2026-07-20
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Specification-led sourcing
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