Gypsum spectroscopy

REFERENCE Kocman. V., Rapid Muttideinciit Analysis of Gypsum and Gypsum Products by X-Ray Fluorescence Spectroscopy, 7%e Chemistry and Technology of Gvpsum, STP 861, R. A. Kuntze. Ed.. American Society for Testing and Materials. 1984, pp. 72-83. 

The INS spectra of hydrated minerals and those containing hydroxyls, are dominated by the librational modes. The complementarity of INS to infrared and Raman spectroscopies is apparent, the optical spectra below 2000 cm are dominated by the X-0 (X = e.g. C, S, Al, Si) stretch and bend vibrations of the framework. Gypsum, CaS04.2H20 [11,12], provides a classic example. 

In 2010, MacKenzie et al. succeeded in proving (using solid-state nuclear magnetic resonance (ssNMR.) spectroscopy) that the outer layer of The Bent Pyramid of Snefru was indeed synthetically manufactured from mixed gypsum (CaS04, -H2O), crushed limestone from the Tura diatomite quarry in... 

Figure 14. Fourier transform infrared spectroscopy (FTIR) of geopolymers cured at 75 for 8 h followed by 23 C for 28 d. Sample of geopolymer 1 is made only from fly ash (Sample see Table 5) and geopolymer 6 sample is geopolymer produced fr om 90 % fly ash and 10 % FGD gypsum II (G-II) thermally treated at 800 "C for 1 h (Sample see Table 5)...

Luminescence Spectroscopy as a Sensor for THE Setting of Gypsum Plaster... 

Chapter 11 - Luminescence spectroscopy has been applied as an important analytical tool in chemistry and biology but it is less common in material science. We decided to explore the suitability of this procedure for monitoring the setting of gypsum plaster. The present report describes our initial obseiwatioiis. This method is based on a phenomenon which is termed... 

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