Food & beverage
Emulsifying salt and buffer.
Ingredients / Phosphates / Tetrapotassium Pyrophosphate
Phosphates
Tetrapotassium Pyrophosphate (E 450(v))
Tetrapotassium pyrophosphate (TKPP) for U.S. manufacturers, from vetted producers. FCC / USP grade on request. Download the sample spec sheet, then send us your grade and quantity.
TRACED · CERTIFIED · RELIABLE · TRANSPARENT · TESTED
Key facts
| CAS No. | 7320-34-5 |
|---|---|
| E-number (EU) | E 450(v) |
| Synonyms | Tetrapotassium pyrophosphate |
| Chemical formula | K4P2O7 |
| Molecular weight | 330,34 (anhydrous) |
| Description | Colourless crystals or white, very hygroscopic powder |
| Solubility | Soluble in water, insoluble in ethanol |
| Grades | EU Reg. 231/2012 (E 450(v)) sample spec · FCC / USP available on request for U.S. food/pharma use |
| Origin | Confirmed in every offer; stated per lot on the COA |
| Storage, shelf life, packaging | Per the producer's specification, on request |
What tetrapotassium pyrophosphate (TKPP) is
Chemical name: Tetrapotassium diphosphate. Formula K4P2O7, molecular weight 330,34 (anhydrous). Colourless crystals or white, very hygroscopic powder. Soluble in water, insoluble in ethanol. (Source: EU Regulation 231/2012, E 450(v).)
Applications by industry
Sample specification
Values from EU Regulation 231/2012 (E 450(v)), consolidated text of 18.08.2026. Actual values depend on the producer; the producer's specification and the COA for your lot are available on request.
| Assay | Content not less than 95 % (800 °C for 0,5 hours) P2O5 content not less than 42,0 % and not more than 43,7 % on the anhydrous basis |
|---|---|
| Loss on ignition | Not more than 2 % (105 °C, 4 hours then 550 °C, 30 minutes) |
| Water insoluble matter | Not more than 0,2 % |
| Fluoride | Not more than 10 mg/kg (expressed as fluorine) |
| Arsenic | Not more than 1 mg/kg |
| Cadmium | Not more than 1 mg/kg |
| Lead | Not more than 1 mg/kg |
| Mercury | Not more than 1 mg/kg |
Download the full spec sheet (PDF)
Documents and sourcing
Droplet promise. Origin confirmed in every offer. Sample lot record on request, from the producer. SDS, allergen and other statements on request. We work with vetted producers and give you access to U.S.- and EU-stocked material through our partner network.
Data sheet, SDS and COA on request. Every delivery ships with a COA linked to the delivered lot.
Questions buyers ask
What is tetrapotassium pyrophosphate (TKPP) used for?
Typical uses by industry. Food & beverage: Emulsifying salt and buffer. Suitability for your product and market is confirmed with the producer's specification.
Which grades can McBoeck supply?
Food grade to EU Regulation 231/2012 (E 450(v)). FCC / USP grade is available on request for U.S. food and pharma use. Particle size and other grade details follow the producer's specification, on request.
Which documents come with tetrapotassium pyrophosphate (TKPP)?
Every delivery ships with a COA linked to the delivered lot. Origin confirmed in every offer. Sample lot record on request, from the producer. SDS, allergen and other statements on request.
What does the sample spec sheet show?
Limits for assay, loss on ignition, water insoluble matter, fluoride, arsenic, cadmium, lead and mercury, taken from EU Regulation 231/2012. Actual values depend on the producer; the producer's specification and the lot COA are available on request.
How do I get a quote?
Send us the grade, quantity and delivery location through the quote form or at [email protected]. We work with vetted producers and give you access to U.S.- and EU-stocked material through our partner network.
Related phosphates
Dicalcium PhosphateDipotassium Hydrogen Phosphate (DKP)Disodium Phosphate (DSP)Monocalcium PhosphateAll phosphates
Need tetrapotassium pyrophosphate (TKPP)?
Send us the grade, quantity and delivery location. Email [email protected] or call +1 (713) 766-6811.