Conclusions
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1.
The degree of exchange of Na+ of synthetic mordenite for other cations decreases with increasing polarizing ability of the cation.
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2.
The acid resistance of cationic forms of mordenite increases with increasing polarizing ability of the exchange cation.
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3.
Thermal decomposition of the ammonium form of mordenite in air leads to the formation of the hydrogen form of mordenite, possessing lower acid resistance than HM produced by the action of acids on the Na-form.
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Translated from Izvestiya Akademii Nauk USSR, Seriya Khimicheskaya, No. 8, pp. 1707–1712, August, 1973.
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Baran, B.A., Belen'kaya, I.M. & Dubinin, M.M. Formation and properties of the hydrogen form of mordenite Communication 9. Thermal stability of certain cationic forms of synthetic mordenite. Russ Chem Bull 22, 1662–1666 (1973). https://doi.org/10.1007/BF00932088
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DOI: https://doi.org/10.1007/BF00932088