Date published: 2025-12-10

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Potassium nitrate (CAS 7757-79-1)

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Alternate Names:
Saltpeter
Application:
Potassium nitrate is a naturally occurring mineral source of nitrogen
CAS Number:
7757-79-1
Purity:
≥99%
Molecular Weight:
101.10
Molecular Formula:
KNO3
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Potassium iodate (KIO3) is an inorganic compound that appears as a white, crystalline solid and is known for its strong oxidizing properties. This characteristic makes it particularly useful in a variety of research and industrial settings. One of the primary mechanisms of action of potassium iodate is its ability to act as an oxidizing agent, where it can facilitate the release of iodine in oxidation-reduction reactions. This property is exploited in analytical chemistry, where potassium iodate serves as a primary standard in volumetric analysis due to its stability and high purity, enabling precise and accurate measurements. In the synthesis of chemicals, it is used to produce iodine-containing compounds and is often employed in educational settings to demonstrate the principles of redox chemistry. Additionally, potassium iodate has found applications in environmental research, particularly in the study of iodine recovery and removal processes from natural water bodies, leveraging its oxidative strength to manage iodine levels in the environment effectively. These varied uses highlight potassium iodate′s role as a versatile chemical tool in non-medical scientific research, underscoring its importance in advancing our understanding and manipulation of chemical processes.


Potassium nitrate (CAS 7757-79-1) References

  1. Potassium nitrate toothpaste for dentine hypersensitivity.  |  Poulsen, S., et al. 2001. Cochrane Database Syst Rev. CD001476. PMID: 11405992
  2. Effect of potassium nitrate and fluoride on carbamide peroxide bleaching.  |  Tam, L. 2001. Quintessence Int. 32: 766-70. PMID: 11820045
  3. Brushing with a potassium nitrate dentifrice to reduce bleaching sensitivity.  |  Haywood, VB., et al. 2005. J Clin Dent. 16: 17-22. PMID: 15974219
  4. Potassium nitrate application alleviates sodium chloride stress in winter wheat cultivars differing in salt tolerance.  |  Zheng, Y., et al. 2008. J Plant Physiol. 165: 1455-65. PMID: 18313170
  5. Fed-batch cultivation of Arthrospira (Spirulina) platensis: potassium nitrate and ammonium chloride as simultaneous nitrogen sources.  |  Rodrigues, MS., et al. 2010. Bioresour Technol. 101: 4491-8. PMID: 20153635
  6. Evaluation of the efficacy of potassium nitrate and sodium fluoride as desensitizing agents during tooth bleaching treatment—A systematic review and meta-analysis.  |  Wang, Y., et al. 2015. J Dent. 43: 913-23. PMID: 25913140
  7. Re-evaluation of sodium nitrate (E 251) and potassium nitrate (E 252) as food additives.  |  , ., et al. 2017. EFSA J. 15: e04787. PMID: 32625505
  8. Effect of Potassium Nitrate and Boric Acid on the Bond Strength of Veneering Ceramics to Zirconia.  |  Sasany, R., et al. 2020. Eur J Prosthodont Restor Dent. 28: 182-188. PMID: 32645259
  9. Topical application of a desensitizing agent containing potassium nitrate before dental bleaching: a systematic review and meta-analysis.  |  Martini, EC., et al. 2021. Clin Oral Investig. 25: 4311-4327. PMID: 34075489
  10. Time Frame Analysis of Potassium Nitrate and Hydrogen Peroxide Diffusion into the Pulp Chamber.  |  Alshehri, A., et al. 2022. Oper Dent. 47: 357-365. PMID: 35671228

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Potassium nitrate, 100 g

sc-203209
100 g
$56.00

Potassium nitrate, 500 g

sc-203209A
500 g
$125.00

Potassium nitrate, 2.5 kg

sc-203209B
2.5 kg
$350.00