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Thermal analysis and Hot-stage Raman spectroscopy of the basic copper arsenate mineral
Copper Arsenate Olivenite Cornwallite Cornubite Clinoclase thermal stage Raman spectroscopy Euchroite
2011/11/10
The thermal analysis of euchroite shows two mass loss steps in the temperature range 100–105 °C and 185–205 °C. These mass loss steps are attributed to dehydration and dehydroxylation of the mineral. ...
Adsorption of Arsenate and Chromate from Waters on Hydrophobized Zeolitic Media
Octadecylammonium-clinoptilolite adsorption anion-exchange chromate and arsenate oxyanions montmorillonite
2010/4/21
A laboratory setup was used to examine the uptake of chromate and arsenate from aqueous solutions by octadecylammonium acetate [ODA]-modified inland clinoptilolite. In trials, a natural variety of mon...
Greedy algae reduce arsenate
algae reduce arsenate
2014/5/22
Algae reduce and methylate arsenate, producing arsenite (As(III)) when the growth rates are high and dimethylarsinic acid (DMA) when the growth rates are low. In lakes, this leads to high As(III) conc...
Modeling Arsenate Competitive Adsorption on Kaolinite, Montmorillonite and Illite
Arsenate competitive adsorption Illite Kaolinite Montmorillonite
2011/12/27
Abstract: The adsorption of arsenate (As(V)) on kaolinite, montmorillonite and illite was investigated at varying pH and competing anion concentration while holding As(V) concentration (6.7 ?10−...