Why Nichrome Wire Is Used in Flame Test?

Nichrome wire is used for its ability to withstand the high temperatures that occur when clay work is fired in a kiln. Nichrome wire can be used as an alternative to platinum wire for flame testing by colouring the non-luminous part of a flame to detect cations such as sodium, potassium, copper, calcium, etc.

Why is nichrome wire used?

Note: A nichrome wire is used as a heating element because of its high melting point and high resistivity (low conductivity) also. Having a high melting does not allow the nichrome wire to melt easily when a large amount of heat is produced. ... Hence, nichrome has high resistivity and low conductivity.

Why is a flame test important for a nichrome wire?

Explanation: Each element has a unique spectrum due its electron configuration. The element can be identified by the spectral lines in the flame test. ... Cleaning the nichrome wire will limit the spectral lines seen to one element making the identification easier.