FLAME TEST GLASS

FLAME TEST GLASS

• Cobalt blue Flame Test Glass for locating potassium spectrum in the presence of sodium etc.
• Size dimensions: 53 x 75mm.

(Wikipedia excerpt: ..."A flame test is relatively quick test for the presence of some elements in a sample. The technique is archaic and of questionable reliability, but once was a component of qualitative inorganic analysis. The phenomenon is related to pyrotechnics and atomic emission spectroscopy... The color of the flames is understood through the principles of atomic electron transition and photoemission, where varying elements require distinct energy levels (photons) for electron transitions...

A flame test involves introducing a sample of the element or compound to a hot, non-luminous flame and observing the color of the flame that results.[4] The compound can be made into a paste with concentrated hydrochloric acid, as metal halides, being volatile, give better results... Different flames can be tried to verify the accuracy of the color. Wooden splints, Nichrome wires, platinum wires, magnesia rods, cotton swabs, and melamine foam are suggested for support... Safety precautions are crucial due to the flammability and toxicity of some substances involved... When using a splint, one must be careful to wave the splint through the flame rather than holding it in the flame for extended periods, to avoid setting the splint itself on fire...")