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Ingredients / Phosphates / Sodium Hexametaphosphate, SHMP
Phosphates
Sodium Hexametaphosphate, SHMP (E 452(i))
Sodium hexametaphosphate (SHMP) 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. | 68915-31-1 |
|---|---|
| E-number (EU) | E 452(i) |
| Synonyms | Sodium hexametaphosphate, Sodium tetrapolyphosphate, Graham's salt, Sodium polyphosphates, glassy, Sodium polymetaphosphate, Sodium metaphosphate |
| Chemical formula | Heterogenous mixtures of sodium salts of linear condensed polyphosphoric acids of general formula H(n + 2)PnO(3n + 1) where ‘n’ is not less than 2 |
| Molecular weight | (102)n |
| Description | Colourless or white, transparent platelets, granules, or powders |
| Solubility | Very soluble in water |
| Grades | EU Reg. 231/2012 (E 452(i)) 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 sodium hexametaphosphate (SHMP) is
Soluble sodium polyphosphates are obtained by fusion and subsequent chilling of sodium orthophosphates. These compounds are a class consisting of several amorphous, water-soluble polyphosphates composed of linear chains of metaphosphate units, (NaPO3)x where x ≥ 2, terminated by Na2PO4 groups. Formula Heterogenous mixtures of sodium salts of linear condensed polyphosphoric acids of general formula H(n + 2)PnO(3n + 1) where ‘n’ is not less than 2, molecular weight (102)n. Colourless or white, transparent platelets, granules, or powders. Very soluble in water. (Source: EU Regulation 231/2012, E 452(i).)
Applications by industry
Water treatment
Sodium hexametaphosphate: scale control in water treatment. Helps limit carbonate and sulfate scale in water systems.
Sample specification
Values from EU Regulation 231/2012 (E 452(i)), 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 | P2O5 content not less than 60 % and not more than 71 % on the ignited basis |
|---|---|
| Loss on ignition | Not more than 1 % |
| Water insoluble matter | Not more than 0,1 % |
| 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)
Also available
Further sheets under the same EU entry. Send us the variant you need with your quote request.
- Sodium hexametaphosphate (second sheet): 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 sodium hexametaphosphate (SHMP) used for?
Typical uses by industry. Food & beverage: Sequestrant in meat, seafood and beverages. Sodium hexametaphosphate: scale control in water treatment. Helps limit carbonate and sulfate scale in water systems. 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 452(i)). 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 sodium hexametaphosphate (SHMP)?
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 sodium hexametaphosphate (SHMP)?
Send us the grade, quantity and delivery location. Email [email protected] or call +1 (713) 766-6811.