A STABLE PERINAPHTHENYL RADICAL IN NATURAL APATITES
L. G. Gilinskaya
Keywords: perinaphthenyl radical, EPR spectrum, natural insular apatites
Pages: 788-791
Abstract
In natural apatites, perinaphthenyl radical with spectral parameters g = 2.0018±0.0002, A1 (1H) =
0.62±0.01 mT, A2 (1H) = 0.2±0.01 mT is identified by EPR. The radical forms during annealing of samples in the air in a range T = 300-500°C and is stable over time for several months after the formation. It is detected in the only genetic type of this polygenic mineral, namely, in supergene insular apatites from guano phosphate ores.
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