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7757-79-1 - Potassium nitrate, 99% - A14527 - Alfa Aesar

A14527 Potassium nitrate, 99%

CAS Number
7757-79-1
Synonyms

Size Price ($) Quantity Availability
500g 23.90
2500g 76.53
10000g 220.42
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Potassium nitrate, 99%

MDL
MFCD00011409
EINECS
231-818-8

Chemical Properties

Formula
KNO3
Formula Weight
101.11
Melting point
334°
Boiling Point
400° dec.
Density
2.109
Sensitivity
Hygroscopic
Solubility
Moderately soluble in water, and insoluble in alcohol. Soluble in glycerol and ammonia.

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.

Notes

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

Literature References

In combination with BF3 etherate, aromatic rings are nitrated: Synthesis, 1087 (1992).

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In the presence of hydrated BF3, alkyl nitrates free of the nitrite can be prepared: Synthesis, 207 (1993).

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In combination with SO2Cl2, aromatic thiols are converted to sulfonyl chlorides: Chem. Lett., 1483 (1992).

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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.

GHS Hazard and Precautionary Statements

Hazard Statements: H272-H303

May intensify fire; oxidizer. May be harmful if swallowed.

Precautionary Statements: P221-P210-P220-P280-P312-P370+P378a-P501a

Take any precaution to avoid mixing with combustibles. Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Keep/Store away from clothing/combustible materials. Wear protective gloves/protective clothing/eye protection/face protection. Call a POISON CENTER or doctor/physician if you feel unwell. In case of fire: Use for extinction: CO2, powder or water spray. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Merck
14,7648
Hazard Class
5.1
Packing Group
III
Harmonized Tariff Code
2834.21
TSCA
Yes
RTECS
TT3700000

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