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Key Documents

P8394

Sigma-Aldrich

Potassium nitrate

ReagentPlus®, ≥99.0%

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About This Item

Empirical Formula (Hill Notation):
KNO3
CAS Number:
Molecular Weight:
101.10
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.21
Assay:
≥99.0%
form:
powder or crystals

Quality Level

product line

ReagentPlus®

Assay

≥99.0%

form

powder or crystals

pH

7

mp

334 °C (lit.)

SMILES string

[K+].[O-][N+]([O-])=O

InChI

1S/K.NO3/c;2-1(3)4/q+1;-1

InChI key

FGIUAXJPYTZDNR-UHFFFAOYSA-N

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General description

Potassium nitrate (KNO3) is a water-soluble inorganic salt that is commonly used as a source of nitrate.

Application

Potassium nitrate can be used in the following:      
  • KNO3/Al2O3 is used as a solid base catalyst to synthesize by vapor-phase methylation of catechol with dimethyl carbonate.
  • KNO3/cetyltrimethylammonium bromide (CTAB) catalytic system is used in the oxidation of benzyl halides to aldehydes and ketones in aqueous media.
  • In the Cu/CeO2 catalytic system, KNO3 can also be utilized as a promoter to enhance the soot oxidation activity and resistance to sulfur poisoning of the catalyst.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

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Pictograms

Flame over circle

Signal Word

Warning

Hazard Statements

Hazard Classifications

Ox. Sol. 3

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Jing Huang et al.
Applied and environmental microbiology, 80(1), 29-42 (2013-10-01)
Bacteria play important roles in mineral weathering and soil formation. However, few reports of mineral weathering bacteria inhabiting subsurfaces of soil profiles have been published, raising the question of whether the subsurface weathering bacteria are fundamentally distinct from those in
Carlotta Pucci et al.
Soft matter, 10(48), 9657-9667 (2014-10-31)
The phase behavior of an ad hoc synthesized surfactant, sodium 8-hexadecylsulfate (8-SHS), and its mixtures with didecyldimethylammonium bromide (DiDAB) in water is reported. We dealt with dilute concentration regimes, at a total surfactant content of <30 mmol kg(-1) where vesicular
Mila Ivanova Luleva et al.
Sensors (Basel, Switzerland), 11(4), 4188-4206 (2011-12-14)
Displacement of soil particles caused by erosion influences soil condition and fertility. To date, the cesium 137 isotope ((137)Cs) technique is most commonly used for soil particle tracing. However when large areas are considered, the expensive soil sampling and analysis
Wolfgang R Engelsberger et al.
The Plant journal : for cell and molecular biology, 69(6), 978-995 (2011-11-09)
Nitrogen is an essential macronutrient for plant growth and development. Inorganic nitrogen and its assimilation products control various metabolic, physiological and developmental processes. Although the transcriptional responses induced by nitrogen have been extensively studied in the past, our work here
Yu Yang et al.
Environmental science & technology, 48(11), 6391-6400 (2014-04-24)
Titanium dioxide (TiO2) is widely used in food products, which will eventually enter wastewater treatment plants and terrestrial or aquatic environments, yet little is known about the fraction of this TiO2 that is nanoscale, or the physical and chemical properties

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