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- W46700135 abstract "Changes were studied in the thorium nitrato frequencies as a result of dehydration over a temperature range in which nitrate decomposition is small. The infrared spectrum of hydrated thorium was characteristic of the coordinated nitrato group and was very similar to Hg(ONO/sub 2/)/sub 2/ which also has volatile nitrato groups. The co-ordinated nitrato group in hydrated thorium nitrate gradually shifted to the ionic nitrate form dependent upon the degree of dehydration at elevated temperatures. No ionic nitrate was in evidence at room temperature. The presence of strong hydrogen bonding between nitrate and lattice water appears to be of impontance in distonting the D/sub 3h/ nitrate symmetry to the C/sub 2v/ nitrato symmetry. The removal of water results in a shift from nitrato to nitrate symmetry. The amount of ionic nitrate formed increased for heat treatments to 170 deg C but decreased abruptly above 170 deg C, indicating denitration of thorium nitrate. (P.C.H.)" @default.
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- W46700135 date "1962-05-15" @default.
- W46700135 modified "2023-09-23" @default.
- W46700135 title "AN INFRARED STUDY OF HYDRATED THORIUM NITRATE. Technical Report No. XVIII" @default.
- W46700135 hasPublicationYear "1962" @default.
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