Molekula
Sodium hexametaphosphate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sodium hexametaphosphate (SHMP) is a water-soluble inorganic phosphate compound widely used as a sequestrant, dispersant, and anti-caking agent in industries like food processing, water treatment, and detergent formulation. It binds metal ions to prevent precipitation and scale formation, improving product stability and performance. CAS: 10124-56-8 | Molecular formula: Na6O18P6 | Molecular weight: 611.77 g/mol | Storage: Ambient conditions (stable up to 200°C) | Signal word: None (non-hazardous under normal use). Molekula supplies Sodium hexametaphosphate 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
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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500 g — £46.50 per pack ex VAT · £55.80 inc. VAT
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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.
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Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Grade | technical grade |
| pH | 5.8 - 7.0 |
| Water insoluble matter | ≤ 0.1% |
| Assay (as P2O5) | Min 65% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 89966173 |
| CAS Number | 10124-56-8 |
| IUPAC Name | hexasodium;2,4,6,8,10,12-hexaoxido-1,3,5,7,9,11-hexaoxa-2lambda5,4lambda5,6lambda5,8lambda5,10lambda5,12lambda5-hexaphosphacyclododecane 2,4,6,8,10,12-hexaoxide |
| EC Number | 233-343-1 |
| Molecular Formula | Na6O18P6 |
| Molecular Weight | 611.77 |
| Exact Mass | 611.6897 |
| SMILES | [O-]P1(=O)OP(=O)(OP(=O)(OP(=O)(OP(=O)(OP(=O)(O1)[O-])[O-])[O-])[O-])[O-].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+] |
| InChIKey | GCLGEJMYGQKIIW-UHFFFAOYSA-H |
| InChI | InChI=1S/6Na.H6O18P6/c;;;;;;1-19(2)13-20(3,4)15-22(7,8)17-24(11,12)18-23(9,10)16-21(5,6)14-19/h;;;;;;(H,1,2)(H,3,4)(H,5,6)(H,7,8)(H,9,10)(H,11,12)/q6*+1;/p-6 |
| PubChem CID | 24968 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| Tariff Code | 28353900 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, 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.
Synonyms
- Calgon (old)
- Calgon S
- Caswell No. 772
- Chemi-charl
- FEMA 3027
- Hexasodium hexametaphosphate
- Hexasodium metaphosphate
- Natrium hexametaphosphat
- Phosphate, sodium hexameta
- Sodium hexametaphosphate (Na6P6O18)
Frequently asked questions
What is sodium hexametaphosphate commonly used for?
Sodium hexametaphosphate is primarily used as a sequestrant in detergents, water treatment (to soften water), and as a dispersant in industrial processes.
What is the chemical formula and molecular weight of sodium hexametaphosphate?
The chemical formula is **Na₆O₁₈P₆**, and the molecular weight is **611.77 g/mol**.
How should sodium hexametaphosphate be stored?
Store in a cool, dry place at ambient temperature, away from moisture and incompatible substances.
What grades of sodium hexametaphosphate does Molekula supply?
Molekula supplies **technical/industrial grade** sodium hexametaphosphate, suitable for most commercial and industrial applications.
Can Molekula supply sodium hexametaphosphate in bulk quantities?
Yes, Molekula can provide bulk quantities of sodium hexametaphosphate, with packaging options tailored to customer needs.
What documentation comes with an order of sodium hexametaphosphate?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a packing list.
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.