Molekula
Pentapotassium triphosphate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Pentapotassium triphosphate is a water-soluble inorganic salt used as a sequestrant, pH buffer, and emulsifier in detergents, food, and industrial applications. It has a CAS number of 13845-36-8, molecular formula K5P3O10, and a molecular weight of 448.41 g/mol. Stored at ambient temperatures, it carries a warning signal word due to potential irritant properties. Molekula supplies Pentapotassium triphosphate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to light yellow powder |
| pH | 9.2 - 10.1 |
| Assay | ⩾ 95.0% |
| P2O5 | ≥ 46.0% |
| Water insoluble matter | ≤ 1.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Water Solubility | Very soluble in water |
Source: PubChem CID 61695 (EU Food Improvement Agents)
Identification
| Property | Value |
|---|---|
| SKU | 89981722 |
| CAS Number | 13845-36-8 |
| IUPAC Name | pentapotassium;[oxido(phosphonatooxy)phosphoryl] phosphate |
| EC Number | 237-574-9 |
| Molecular Formula | K5P3O10 |
| Molecular Weight | 448.41 |
| Exact Mass | 447.689 |
| SMILES | [O-]P(=O)([O-])OP(=O)([O-])OP(=O)([O-])[O-].[K+].[K+].[K+].[K+].[K+] |
| InChIKey | ATGAWOHQWWULNK-UHFFFAOYSA-I |
| InChI | InChI=1S/5K.H5O10P3/c;;;;;1-11(2,3)9-13(7,8)10-12(4,5)6/h;;;;;(H,7,8)(H2,1,2,3)(H2,4,5,6)/q5*+1;/p-5 |
| PubChem CID | 61695 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 28353910 |
| Tariff Code | 2835390000 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H319 Causes serious eye irritation
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P337+313 If eye irritation persists get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- KTPP
- pentapotassium
- pentapotassium;[oxido(phosphonatooxy)phosphoryl] phosphate
- POTASSIUM PHOSPHATE (K5P3O10)
- potassium triphosphate
- Potassium triphosphate (K5P3O10)
- TRIPHOSPHORIC ACID PENTAPOTASSIUM SALT CLASSIFICATION: INORGANIC
- Triphosphoric acid, pentapotassium salt
- Triphosphoric acid, potassium salt (1:5)
Frequently asked questions
What is pentapotassium triphosphate used for?
It is used as a water softener and sequestrant in detergents and cleaning products, and as a food additive to stabilize pH and enhance texture.
What is the chemical formula and molecular weight?
The formula is K5P3O10 and the molecular weight is 448.41 g/mol.
How should pentapotassium triphosphate be stored?
It should be stored at ambient temperature, protected from moisture and heat.
What grade is available?
The product is specified as a white to light yellow powder with an assay of at least 95.0%, P2O5 of at least 46.0%, pH of 9.2 to 10.1 and water-insoluble matter of no more than 1.0%; please contact us for specific purity or food-grade options.
Can Molekula supply it in bulk?
Yes, we can supply pentapotassium triphosphate in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.