Abstract
Layered sodium zirconium arsenate of composition Zr 2O 3(NaAsO 4)·3H 2O was prepared by the reaction between Zr(OC 3H 7) 4 and sodium arsenate in alkaline media (pH > 12) under mild hydrothermal conditions (180–200°C). Two hydrogen forms of the zirconium arsenate (ψ-ZrAs) Zr 2O 3(HAsO 4)·3H 2O and Zr 2O 3(HAsO 4)·H 2O, were prepared by acid treatment of the sodium form. The intercalation of n-alkylamines into the ψ-ZrAs from the gas phase was studied. The synthesized materials were characterized by elemental analysis, thermogravimetric analysis, infrared spectroscopy and powder X-ray diffraction. The data indicate that the zirconium arsenate is isostructural to ψ-Zr 2O 3(HPO 4)·nH 2O (n = 0.5, 1.5). The new compounds exhibit high hydrolytic stability in alkaline media. The ion exchange behavior of the ψ-Zr 2O 3(HAsO 4)·3H 2O towards alkali, alkaline-earth, and some di- and tri-valent metal cations in different solutions was studied over a wide pH range (2–14) by the batch technique.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
