X-Ray and Infrared Data on Hectorite-Guanidines and Montmorillonite-Guanidines
Clay-organic complexes of the clay minerals sodium hectorite and sodium montmorillonite with the hydrochlorides of guanidine, amino-guanidine, methylguanidine, and triamino-guanidine were examined for thermal stability by the oscillating-heating x-ray technique. Completely exchanged complexes increase the thermal stability of these two clays by as much as 275°C.
Infrared analyses were also made on these same clay-organic complexes. There is a marked difference between the infrared patterns of the clay—organic complexes and the patterns of the clays or the organic salts alone. More experimental work must be done before it will be possible to interpret completely the clay-organic infrared patterns.
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