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Effect of SiO2/Al2O3 Ratio on the Thermal Reactions of Allophane
Allophane Dehydration Dehydroxylation DTA Silica/alumina ratio Thermal reactions
2012/2/8
Differences were found in the differential thermal analysis curves and in the temperatures of new-phase development between allophanes of high (1.91–1.99) and low (1.47–1.53) SiO2/Al2O3 ratios. The en...
Phosphate in the form of organic compounds can be bound in soils containing the aluminosilicate allophane. A significant part of this phosphorus is believed to be present as nucleic acids. The interac...
Imogolite and Allophane Formed in Saprolite of Basalt on Maui, Hawaii
Imogolite Allophane Saprolite Basalt
2012/2/20
Inorganic gel and allophane collected from basaltic saprolite on Maui, Hawaii, and studied by Patterson in 1964 were reexamined. The main constituent of the gel is imogolite, and gibbsite and allophan...
Formation of Zeolite Type A from Halloysite and Allophane
Formation of Zeolite Type A Halloysite Allophane
2011/11/16
It is well known that kaolinite and halloysite change into hydroxy sodalite by treatment with sodium hydroxide. It is also known that sodium zeolite type A can be formed from kaolinite, after it has b...