Characterization of Sodium Selenate Using XRD, PSD, DSC, TGA/DTG, UV-vis, and FT-IR

What is it about?

This article described the in-depth physicochemical, thermal, and spectroscopic characterization of sodium selenate using various analytical techniques.

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Why is it important?

The current study effectively investigated in-depth physicochemical, and spectroscopic characterization of sodium selenate using XRD, PSD, DSC, TG/DTG, UV-vis, and FT-IR analytical technique. The sodium selenate PXRD patterns showed significant narrow, and sharp; peak at Bragg’s angle (2θ) position, indicated the crystalline nature of sodium selenate. The crystallite size was found to be in the range of 28.75 to 49.97nm. The average particle size of sodium selenate was 3.93 (d10), 14.44 (d50), and 40.65 µm (d90) and average surface area of 0.676 m2/g. The calculated span and relative span value were 36.71 µm and 2.54, respectively. The DSC thermogram of sodium selenate showed endothermic inflation at 588.81 °C. The overall thermal characterization indicated sodium selenate has the long range melting/degradation temperature implies very high thermal stability. The UV-visible spectrum showed the highest absorbance maxima (λmax) at of 205.1 nm. The FT-IR spectrum showed the strong and sharp peak at 888 cm-1 due to the Se-O stretching. These in-depth, comprehensive, physico-chemical and thermal solid state characterization information of sodium selenate would be a useful asset. This can set a standard for scientific qualitative and quantitative analysis of nutraceuticals, pharmaceuticals and other industries utilizing sodium selenate as an ingredients.