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ERIC Number: EJ1012204
Record Type: Journal
Publication Date: 2013-Feb
Pages: 4
Abstractor: As Provided
Reference Count: 21
ISBN: N/A
ISSN: ISSN-0021-9584
Identifying Hydrated Salts Using Simultaneous Thermogravimetric Analysis and Differential Scanning Calorimetry
Harris, Jerry D.; Rusch, Aaron W.
Journal of Chemical Education, v90 n2 p235-238 Feb 2013
An experiment for analytical chemistry is presented that utilizes simultaneous thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) to characterize colorless, hydrated salts with anhydrous melting points less than 1100 degrees C. The experiment could be used to supplement the lecture discussing gravimetric techniques. It is a straightforward experiment to introduce the instrumentation and analysis software to students, and it reinforces stoichiometric calculations. The students identify an unknown salt by determining the salt's water content using mass loss data from the TGA and by measuring the anhydrous salt's melting point using DSC data. (Contains 1 table and 1 figure.)
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 - Descriptive
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A