2012/12/12 by Jerry D. Harris, Aaron W. Rusch · 1 citation
Chemistry · Materials Science · #Analytical Chemistry (journal) #Anhydrous #Calcium Carbonate Crystallization and Inhibition #Chemistry #Differential scanning calorimetry #Gravimetric analysis #Inorganic chemistry #Materials science #Melting point #Organic chemistry #Physical chemistry #Physics #Salt (chemistry) #Thermodynamics #Thermogravimetric analysis #Thermogravimetry #Various Chemistry Research Topics #thermodynamics and calorimetric analyses
paper · doi:10.1021/ed300222y
openalex publication_date 2012/12/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/26
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 °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.