Which ion is responsible for the flame color?
Sodium compounds show the same flame test colors (all orange-yellow), suggesting Na+ is responsible for the colors. Comparing CaCO3 and CaCl2 (both red-orange) or KC4H5O6 and KCl (both light purple) also indicates that it is the common cation causing the flame test colors.
Is the flame color caused by the cation or the anion?
While usually cations dictate the colour, anions are also known to create colourful flames. The reason usually cations produce colour is that the wavelength of the emitted photon happens to be in the visible spectrum - the above process occurs for all types of atoms; its just that we cant see a lot of them.
Calcium chloride imparts a yellowish-red color to a flame. A yellowish-red color is imparted to the flame by calcium chloride.
Copper Flame testsIon presentFlame test colourPotassium, K +LilacCalcium, Ca 2+Orange-redBarium, Ba 2+GreenCopper, Cu 2+Blue-green2 more rows
What is the flame color of KCL?
light lilac Potassium Chloride: light lilac. Sodium Chloride: yellow flame. Strontium Chloride: red or crimson flame.
Why does magnesium not have a flame Colour?
* The electrons in beryllium and magnesium are too strongly bound to get excited by flame. Hence, these elements do not impart any color. Note: Dont be confused with the alkaline earth elements. Due to this they beryllium and magnesium do not give color to flame.