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Food grade phosphate · Potassium salt · CAS 13845-36-8

Food Grade Potassium Tripolyphosphate (KTPP)

Potassium tripolyphosphate is a condensed potassium phosphate evaluated in selected food systems as an emulsifier, moisture-retention agent, sequestrant, stabilizer, texture modifier, binder and quality-protection aid.

CAS number
13845-36-8
Formula
K5P3O10
Reference assay
≥90.0%
MOQ
500 kg

Include your food application, target specification, quantity, destination and required documents.

Bespring food grade phosphate products for industrial buyers
Representative Bespring phosphate portfolio image. Request current KTPP and packing photographs for qualification.
Reference assayK5P3O10 content ≥90.0%
Standard packing25 kg bag
Container loadingReference: 22 MT / 20' FCL
QualificationCOA and applicable certificates on request

Direct product answer

What is food grade potassium tripolyphosphate?

Food grade potassium tripolyphosphate (KTPP) is a condensed potassium phosphate with formula K5P3O10 and CAS number 13845-36-8. The supplied grade is a white powder with a reference assay of at least 90.0%.

KTPP is not the same material as sodium tripolyphosphate (STPP) or tetrapotassium pyrophosphate (TKPP). Buyers should qualify the exact chemical identity, grade, specification and functional performance required by their process.

Functional roles

Why is KTPP evaluated in food formulations?

The supplied application information identifies several possible functions. Actual results depend on the complete phosphate system, dosage, raw materials, process and regulatory limits.

Function group 01

Emulsification and water management

KTPP may be evaluated where protein, fat and water interactions affect process yield and finished texture.

  • Emulsifier and binder roles
  • Moisture-retention support
  • Texture and microstructure modification
Function group 02

Sequestration and quality control

Phosphate functionality may support metal-ion control, stabilization and selected color or oxidative-stability objectives.

  • Chelating or sequestrant function
  • Stabilization and process control
  • Color-retention and antioxidant-system support

Food application screening

How should food manufacturers evaluate KTPP?

The supplied sheet describes KTPP by its functional roles rather than a closed list of food categories. Qualification should therefore start with the intended process and measurable acceptance criteria.

Protein systems

Screen emulsification, water retention, binding, yield and texture under the real salt, protein and temperature conditions.

Dairy and cheese

Evaluate mineral interactions, emulsification, stability, flavor and texture in the complete dairy formulation.

Seafood processing

Test moisture management, appearance and texture while controlling dosage, labeling and destination-market limits.

Phosphate blends

Compare KTPP alone and in permitted blends for solubility, pH, sequestration and functional performance.

Color stability

Measure color retention under realistic processing and storage; do not infer finished-product shelf life from ingredient identity alone.

Pilot validation

Define target outcomes, control formulation, sampling plan and test method before moving from bench to plant trial.

Supplied technical data

Food grade KTPP reference specification

The table reproduces the product information supplied for this page. Confirm the current signed specification, compendial basis and test methods before purchasing.

Potassium tripolyphosphate (KTPP) — supplied reference limits
Test itemUnitSpecification
K5P3O10 content%≥90.0
P2O5 content%≤46.0
Water-insoluble matter%≤2.0
Arsenic (As)%≤0.0003
Heavy metals (as Pb)%≤0.001
Fluoride (F)%≤0.003
Cadmium (Cd)%≤0.0001
Mercury (Hg)%≤0.0001
pH value9.5–10.5
Loss on drying at 105°C%≤0.7
AppearanceWhite powder

Specification note: These are commercial reference values, not a batch result or universal regulatory standard. Compare the offered grade and COA with the agreed contract and destination-market requirements.

Qualification support

Documents and evidence to request

Product documents

Current specification/TDS, SDS, test methods and representative or batch certificate of analysis.

Food qualification

Request applicable HACCP, Kosher, Halal and ISO documents and verify product, site, scope, issuer and validity.

Regulatory review

Confirm legal status, use conditions, maximum level and labeling for the exact food category and destination.

Storage and handling

Protect KTPP from heat and moisture

  • TemperatureThe supplied guidance states storage at no more than 30°C.
  • EnvironmentKeep bags 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 KTPP FAQ

Is KTPP the same as TKPP?

No. KTPP is potassium tripolyphosphate, K5P3O10, CAS 13845-36-8. TKPP is tetrapotassium pyrophosphate, K4P2O7, CAS 7320-34-5. They require separate specifications and trials.

What is the reference KTPP assay?

The supplied sheet states K5P3O10 content of at least 90.0%. Confirm the current signed specification and test method for the offered batch.

What are the packing and minimum order?

The reference is 25 kg per bag, 22 metric tons per 20-foot container and a 500 kg minimum order. Confirm current pallet, liner and loading details.

What details are needed for an accurate quotation?

Provide the food application, target specification, quantity, packing, destination port, regulatory market, required documents and delivery timing.

Editorial review: Bespring Chemical technical and export team · Last reviewed 2026-07-19

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Specification-led sourcing

Request a food grade KTPP quote

Share the technical and commercial details needed to review the offered grade.

  • Application and target specification
  • Quantity, packing and destination
  • Required certificates and delivery timing

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