Radical present in KCl
Answers
Answer:
Potassium (k+)
Chlorine (Cl-)
Answer:
Abstract
Ultraviolet (u.v.) absorption bands produced in KCl by electron irradiation at 80°K to a concentration of 3 × 108F centers/cm3 were studied as a function of trace impurity content and annealing temperature. A single absorption band peaked at 240 nm, reported by Faraday and Compton, was found in samples from three undoped ingots and one lightly lead-doped ingot at the irradiation temperature. After step annealing to higher temperatures new bands of variable width, height, and position were formed which were strongly ingot dependent. In addition, the temperature at which the 240 nm band first showed changes was sample dependent. For a more heavily calcium-doped sample, a different initial u.v. band was found peaked at 230 nm. These bands are attributed to interstitial halide centers which cluster at, and are stabilized by, trace amounts of impurity.
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