Is it possible to recognise sodium ions without using flame?
Yes, it is possible to test for sodium ions without using a flame.
The test is based on the formation of an insoluble sodium salt.
Put 1 small drop of conc.
Add 1 very small particle (max.
Stir briskly for 1 to 2 min with a glass rod [
When the solution is saturated, the acidic drop becomes white and stiff and swells visibly.
Add 1 drop of deionized water and stir vigorously.
When the white salt is dissolved the solution should be colourless or perhaps opalescent.
Add 1 drop of 2 mol/L
The reagent is now ready to be used.
Add 1 drop of the reagent solution to a previously dried test drop on an object slide.
Observe the reaction products under the microscope at a magnification of about 100X.