Laboratory method receiving of oxygen. Potassium nitrite (distinct from potassium nitrate) is the inorganic compound with the chemical formula K N O 2.It is an ionic salt of potassium ions K + and nitrite ions NO 2 −, which forms a white or slightly yellow, hygroscopic crystalline powder that is soluble in water.. The Facts. Well the thermal decomposition of potassium nitrate is the equation I posted above.

This reaction takes place at a temperature of 400-520°C. It is a strong oxidizer and may accelerate the combustion of other materials.

Chem. 1957 79 4 838-842 ah yes it does say nitrite, i guess i didnt read it properly... that makes a lot more sense. All the carbonates in this Group undergo thermal decomposition to give the metal oxide and carbon dioxide gas. The thermal decomposition of potassium nitrate to produce potassium nitrite and oxygen. The thermal decomposition of nitrates – ‘writing with fire’ ... the demonstration could be used to revise the equations for the decomposition of nitrates. The effect of heat on the Group 2 carbonates. You sure the question doesn't say it decomposes into potassium nitrite instead of nitrate? The Kinetics of the Thermal Decomposition of Potassium Nitrate and of the Reaction between Potassium Nitrite and Oxygen 1a Eli S. Freeman Cite This: J. Thermal decomposition studies of intimate mixtures of different molar ratios of potassium nitrate and chromium(III) oxide were made by employing thermogravimetry differential thermal analysis, chemical analysis, infrared spectral measurements and X-ray powder diffraction patterns. It describes and explains how the thermal stability of the compounds changes as you go down the Group. thanks Soc. Am.