ERIC Number: EJ1443300
Record Type: Journal
Publication Date: 2023-Apr
Pages: 5
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: EISSN-1938-1328
Solid State Reactions: Preparation of Solid Solutions and Pure Alkaline-Earth Titanates to Study Their Dependence on Vegard's Law
Ana Sofi´a Varela; Alfonso Garci´a-Ma´rquez
Journal of Chemical Education, v100 n4 p1584-1588 2023
This laboratory experiment consists of the synthesis of two series of alkaline-earth titanates (calcium-strontium and strontium-barium)to corroborate Vegard's law by obtaining their X-ray diffraction patterns and plotting the lattice parameter versus mole fraction of both cations. This experiment allows students to understand the key concepts in the solid state chemistry of a lattice parameter, a cubic Bravais network, a perovskite type structure, substitutional solid solutions, Vegard's law and its deviations, Miller indices, and X-ray diffraction principles. In addition, it gives students the opportunity to acquire technical skills in ceramic synthesis and X-ray diffraction pattern interpretation.
Descriptors: Chemistry, Scientific Principles, Laboratory Experiments, Scientific Concepts, Molecular Structure, Spectroscopy, Science Process Skills, Skill Development
Division of Chemical Education, Inc. and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A