Editing Thermogravimetric analysis (section)

{{Short description|Thermal method of analysis}}
{{Infobox chemical analysis
| name = Thermogravimetric analysis
| acronym = TGA
| classification =[[Thermal analysis]]
[[Image:Thermogravimetric analyser.jpg|120px]]
A typical TGA system
| analytes = 
| manufacturers = 
| related = [[Isothermal microcalorimetry]]<br>[[Differential scanning calorimetry]]<br>[[Dynamic mechanical analysis]]<br>[[Thermomechanical analysis]]<br>[[Differential thermal analysis]]<br>[[Dielectric thermal analysis]]
| hyphenated = 
}}

'''Thermogravimetric analysis''' or '''thermal gravimetric analysis''' ('''TGA''') is a method of [[thermal analysis]] in which the [[mass]] of a sample is [[measurement|measured]] over [[time in physics|time]] as the [[temperature]] changes. This measurement provides information about physical phenomena, such as [[phase transition]]s, [[absorption (chemistry)|absorption]], [[adsorption]] and [[desorption]]; as well as chemical phenomena including [[chemisorption]]s, [[thermal decomposition]], and solid-gas reactions (e.g., [[oxidation]] or [[redox|reduction]]).<ref name="Coats and Redfern 1968 p906">{{cite journal | title = Thermogravimetric Analysis: A Review | journal = [[Analyst (journal)|Analyst]] | year = 1963 | volume = 88 | issue = 1053 | pages = 906–924 | doi = 10.1039/AN9638800906 | author1 = Coats, A. W. | author2 = Redfern, J. P.|bibcode = 1963Ana....88..906C }}</ref>