Skip to Content
Merck
All Photos(4)

Documents

P8394

Sigma-Aldrich

Potassium nitrate

ReagentPlus®, ≥99.0%

Sign Into View Organizational & Contract Pricing


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

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

Looking for similar products? Visit Product Comparison Guide

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

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


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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
Changhong Yao et al.
Bioresource technology, 118, 438-444 (2012-06-22)
Microalgal starch is a potential feedstock for biofuel production. The effects of KNO(3) and MgSO(4) concentrations and light intensity on biomass and starch production by the marine microalga, Tetraselmis subcordiformis, were investigated. Under 200 μmol m(-2) s(-1) irradiance and sulfur-deprived
Damir A Safin et al.
Dalton transactions (Cambridge, England : 2003), 42(6), 1969-1972 (2012-12-14)
A highly efficient Zn(2+) "turn-on" fluorescent sensor, [4'-benzo-15-crown-5]N=CH-(2-OH-C(6)H(4)) (HL), has been synthesized. In the presence of Zn(NO(3))(2), displays high selectivity and sensitive enhancement of fluorescence intensity in water with the formation of [ZnL(2)]. Addition of an equimolar amount of KNO(3)
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
Oliver Peacock et al.
Medicine and science in sports and exercise, 44(11), 2213-2219 (2012-08-10)
The objective of this study is to examine the effects of acute ingestion of dietary nitrate on endurance running performance in highly trained cross-country skiers. Dietary nitrate has been shown to reduce the oxygen cost of submaximal exercise and improve

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service