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Properties and Acid Dissolution of Metal-Substituted Hematites
Acid Dissolution Activation Energy Frequency Factor Hematite Iron Oxide Metal Substitution
2011/12/2
Abstract: The dissolution in 1 M HCl of Al-, Mn-, and Ni-substituted hematites and the influence of metal substitution on dissolution rate and kinetics of dissolution were investigated. The inhomogene...
Site Occupancy in Nontronite Studied by Acid Dissolution and M鰏sbauer Spectroscopy
Acid dissolution Mossbauer spectroscopy Nontronite Tetrahedral iron
2011/11/30
Abstract: The dissolution of two Ca2+-exchanged nontronite samples has been studied in 10% HCl. Early acid-dissolution studies (Osthaus, 1954) have indicated that after two hours of dissolution most o...
Acid Dissolution of Akaganieite and Lepidocrocite: The Effect on Crystal Morphology
Akaganeite Dissolution Iron Lepidocrocite Morphology Transmission electron microscopy
2012/1/9
The rate of dissolution of akaganéite in HCl increased with time over the bulk of the reaction leading to a sigmoid dissolution vs. time curve. The bulk of the dissolution of lepidocrocite could be de...
Kinetics of Acid-Dissolution of Palygorskite (Attapulgite) and Sepiolite
Kinetics Acid-Dissolution Palygorskite Attapulgite Sepiolite
2012/2/20
Palygorskite and sepiolite were digested with large excesses of hydrochloric acid at constant temperature for various periods of time. The reaction was found to be of first order with respect to the m...
KINETICS OF ACID-DISSOLUTION OF PALYGORSKITE (ATTAPULGITE) AND SEPIOLITE
PALYGORSKITE ATTAPULGITE SEPIOLITE
2011/11/4
Palygorskite and sepiolite were digested with large excesses of hydrochloric acid at constant temperature for various periods of time. The reaction was found to be of first order with respect to the m...