Date published: 2025-12-18

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Sodium hexametaphosphate (CAS 68915-31-1)

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Alternate Names:
Calgon; Phosphate glass, water soluble; Polyphosphate sodium salt; Sodium polyphosphate
CAS Number:
68915-31-1
Molecular Formula:
(NaPO3)x
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Sodium hexametaphosphate is an inorganic compound with a variety of applications in research and industrial processes. In environmental studies, it is investigated for its ability to sequester metal ions, which helps prevent scale formation and corrosion in water systems. This property is also leveraged in soil analysis to mobilize and measure trace elements. In the field of materials science, research on sodium hexametaphosphate includes its role as a dispersing agent in the production of ceramics and clays, where it helps to deflocculate particles and improve the uniformity of the material. Its use in studying the stabilization of colloidal suspensions is significant for understanding the interactions and stability of dispersed systems. Additionally, sodium hexametaphosphate is employed in the examination of its effects on the rheological properties of various formulations, which is important in the development of new composites and coatings.


Sodium hexametaphosphate (CAS 68915-31-1) References

  1. Fluorometric assessment of gram-negative bacterial permeabilization.  |  Helander, IM. and Mattila-Sandholm, T. 2000. J Appl Microbiol. 88: 213-9. PMID: 10735988
  2. Fluoride toothpaste supplemented with sodium hexametaphosphate reduces enamel demineralization in vitro.  |  da Camara, DM., et al. 2016. Clin Oral Investig. 20: 1981-1985. PMID: 26759340
  3. Sodium trimetaphosphate and hexametaphosphate impregnated with silver nanoparticles: characteristics and antimicrobial efficacy.  |  Mendes-Gouvêa, CC., et al. 2018. Biofouling. 34: 299-308. PMID: 29482366
  4. Remineralizing effect of a fluoridated gel containing sodium hexametaphosphate: An in vitro study.  |  Gonçalves, FMC., et al. 2018. Arch Oral Biol. 90: 40-44. PMID: 29529484
  5. Sodium hexametaphosphate modulated fluorescence responsive biosensor based on self-assembly / disassembly mode of reduced-graphene quantum dots / chitosan system for alkaline phosphatase.  |  Shi, F., et al. 2020. Talanta. 207: 120341. PMID: 31594589
  6. The effects of sodium hexametaphosphate combined with other remineralizing agents on the staining and microhardness of early enamel caries: An in vitro modified pH-cycling model.  |  Mohammadipour, HS., et al. 2019. Dent Res J (Isfahan). 16: 398-406. PMID: 31803386
  7. Effect of Sodium Hexametaphosphate and Trisodium Phosphate on Dispersion of Polycarboxylate Superplasticizer.  |  Zhang, Y., et al. 2019. Materials (Basel). 12: PMID: 31847137
  8. Physicochemical properties of skim milk powder dispersions prepared with calcium-chelating sodium tripolyphosphate, trisodium citrate, and sodium hexametaphosphate.  |  Choi, I. and Zhong, Q. 2020. J Dairy Sci. 103: 9868-9880. PMID: 32861487
  9. Effects of sodium hexametaphosphate, sodium tripolyphosphate and sodium pyrophosphate on the ultrastructure of beef myofibrillar proteins investigated with atomic force microscopy.  |  Hu, Y., et al. 2021. Food Chem. 338: 128146. PMID: 33091990
  10. Effects of Sodium Hexametaphosphate Addition on the Dispersion and Hydration of Pure Calcium Aluminate Cement.  |  Cheng, B., et al. 2020. Materials (Basel). 13: PMID: 33228038
  11. Effect of sodium triphosphate and sodium hexametaphosphate on properties of buffalo milk protein concentrate 60 (BMPC60) powder.  |  Shinde, AP., et al. 2021. J Food Sci Technol. 58: 1996-2006. PMID: 33897036
  12. Effect of sodium hexametaphosphate and fluoride on dual-species biofilms of Candida albicans and Streptococcus mutans.  |  Hosida, TY., et al. 2021. Biofouling. 37: 939-948. PMID: 34789045
  13. Effects of Sodium Hexametaphosphate and Fluoride on the pH and Inorganic Components of Streptococcus mutans and Candida albicans Biofilm after Sucrose Exposure.  |  Hosida, TY., et al. 2022. Antibiotics (Basel). 11: PMID: 36009913
  14. Effect of sodium hexametaphosphate and quercetin, associated or not with fluoride, on dentin erosion in vitro.  |  Capalbo, LC., et al. 2022. Arch Oral Biol. 143: 105541. PMID: 36116379
  15. Inhibitory mechanism of sodium hexametaphosphate on enzymatic browning in yellow alkaline noodles.  |  Tang, YY., et al. 2023. Food Chem. 412: 135533. PMID: 36716630

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Sodium hexametaphosphate, 250 g

sc-253584
250 g
$42.00

Sodium hexametaphosphate, 5 kg

sc-253584A
5 kg
$158.00