Potassium nitrate, 99%, Thermo Scientific Chemicals

Name: Potassium nitrate, 99%, Thermo Scientific Chemicals
SKU: ALFA14527.36

CAS: 7757-79-1 | KNO3 | 101.10 g/mol

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Catalog number ALFA14527.36

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Specifications

Boiling Point400°C (decomposition)

Chemical Name or MaterialPotassium nitrate

Melting Point334°C

CAS7757-79-1

Health Hazard 1H272

Potassium nitrate has a vast variety of applications. Appropriate preparations of potassium nitrate find use in fertilizers, food preservatives, tooth paste, rocket propellants and fireworks. In addition, it is also used as an electrolyte in a salt bridge, and as thermal storage medium in power generation systems. It forms phase change material with silica and alumina nanoparticles. In combination with boron trifluoride it forms an efficient reagent for nitration of aromatic compounds. Adsorption on alumina provides an environmentally benign aromatic nitrating agent.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Potassium nitrate has a vast variety of applications. Appropriate preparations of potassium nitrate find use in fertilizers, food preservatives, tooth paste, rocket propellants and fireworks. In addition, it is also used as an electrolyte in a salt bridge, and as thermal storage medium in power generation systems. It forms phase change material with silica and alumina nanoparticles. In combination with boron trifluoride it forms an efficient reagent for nitration of aromatic compounds. Adsorption on alumina provides an environmentally benign aromatic nitrating agent.

Solubility
Moderately soluble in water, and insoluble in alcohol. Soluble in glycerol and ammonia.

Notes
It is an oxidizer. Stable under ordinary conditions. Incompatible with reducing agents and alcohols.

RUO – Research Use Only

General References:

In combination with BF₃ etherate, aromatic rings are nitrated: Synthesis, 1087 (1992).
In the presence of hydrated BF₃, alkyl nitrates free of the nitrite can be prepared: Synthesis, 207 (1993).
In combination with SO₂Cl₂, aromatic thiols are converted to sulfonyl chlorides: Chem. Lett., 1483 (1992).
Chieruzzi, M.; Miliozzi, A.; Crescenzi, T.; Torre, L.; Kenny, J. M. A New Phase Change Material Based on Potassium Nitrate with Silica and Alumina Nanoparticles for Thermal Energy Storage. Nanoscale Res. Lett. 2015, 10, 273.
Nagayama, S.; Katoh, K.; Higashi, E.; Nakano, K.; Kumagae, K.; Habu, H.; Wada, Y.; Arai, M. Differential scanning calorimetry analysis of crystal structure transformation in spray-dried particles consisting of ammonium nitrate, potassium nitrate, and a polymer. J. Therm. Anal. Calorim. 2014, 118 (2), 1215-1219.
Wang, Y.; Huang, W. Y.; Chun, Y.; Xia, J. R.; Zhu, J. H. Dispersion of Potassium Nitrate and the Resulting Strong Basicity on Zirconia. Chem. Mater. 2001, 13 (2), 670-677.
Carrascull, A. L.; Ponzi, M. I.; Ponzi, E. N. Catalytic Combustion of Soot on KNO3/ZrO2 Catalysts. Effect of Potassium Nitrate Loading on Activity. Ind. Eng. Chem. Res. 2003, 42 (4), 692-697.