Abstract
X-ray Photoelectron Spectroscopy (XPS) and Photoacoustic (PA) techniques are useful to identify the structure and optical properties of chemical compounds used in archaeology, among others. In the present study XPS and PA techniques were used to analyze seven samples obtained from the Talavera House, during the conservation and restoration works carried out in the 2012-2013 period. Talavera House is located between the República del Salvador, Talavera and Roldán streets, in the historic center of Mexico City. The objective of this study was to identify the chemical compounds added to the lime when burned in the furnace and its use in the tanneries during the 18th century, both elements located in the second yard, as well as in the construction of the corridor in the 20th century located in the first courtyard. The samples were collected at these points and analyzed by XPS and Photoacoustic (PA) techniques, comparing these results with other excavated sites.
Highlights
Talavera House is located between República del Salvador, Talavera and Roldán streets in the historic center of Mexico City (Cuauhtémoc mayoralty)
In the results of the chemical analysis of Talavera House, from the X-ray Photoelectron Spectroscopy (XPS) analysis, nine elements were found: O, C, Ca, Si, Mg, P, Na, Fe and K, varying their percentages according to the sampled site
The presence of Mg, O and Ca were confirmed by XPS
Summary
Talavera House is located between República del Salvador, Talavera and Roldán streets in the historic center of Mexico City (Cuauhtémoc mayoralty). The property has a perimeter of 30.69 m to the west, 26.21 m to the east, 67.52 m to the south, and 64.29 m to the north, with a total surface area of 2,095,015 m2. This building was located in a pre-Hispanic neighborhood. The elementary school No 91 was installed, and a corridor was added to the wall of the first yard, as shown the photograph of Figure 1 (taken by Casasola, 1825-1919). Today the Talavera House is a site museum and House of Culture
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