PREPARATION OF HIGH-PURITY SILICON TETRAFLUORIDE
1395
spectrometry revealed hexafluorodisiloxane as the
ftorkremnievykh soedinenii (Chemistry of Silicone
Fluoride Compounds), Moscow: Nauka, 1979.
major molecular impurity in SiF . According to the
4
data of atomic emission spectroscopy, the SiF pre-
21. Rakov, E.G., Musorin, V.A., Mel’nichenko, E.I., et al.,
Abstracts of Papers, Vsesoyuznaya konferentsiya
Khimiya i tekhnologya redkikh tsvetnykh metallov i
solei (All-Union Conf. Chemistry and Technology
of Rare Non-Ferrous Matals and Their Salts ), Frunze,
1986, p. 153.
22. Ruff, O., and Albert, K., Ber., 1905, vol. 38, p. 53.
23. FRG Patent 3228177.
24. GDR Patent 89581.
4
7
pared contains about 10 wt % metallic impurities.
ACKNOWLEDGMENTS
The study was financially supported by the 6th
Expert’s Competition of Basic and Applied Scientific
Projects of Young Scientists from the Russian Acad-
emy of Sciences (grant no. 165).
25. Borisov, V.M., and Mel’nikova, S.V., Zh. Prikl. Khim.,
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