Synthesis, characterization and thermal behavior on solid tartrates of light trivalent lanthanides
Solid state Ln–L compounds, where Ln stands for light trivalent lanthanides (L–Gd) and L is tartrate, have been synthesized. Thermogravimetry and differential thermal analysis (TG/DTA), differential scanning calorimetry (DSC), X-ray powder diffractometry, elemental analysis and complexometry were used to characterize and to study the thermal behaviour of these compounds. The results led to information about the composition, dehydration and thermal decomposition of the isolated compounds.
Kinetics and mechanism of thermal decomposition of strontium tartrate crystals
Thermogravimetric and differential thermal analysis have been used for thermal characterisation of the gel-grown crystals of strontium tartrate by measuring the changes in their physicochemical properties as a function of increasing temperature with time. The material turns out to be trihydrated. The obtained experimental data show that the material is thermally stable up to 393 K, beyond which it exhibits marked tendency to decompose. The decomposition process occurs in four stages until, ultimately, strontium carbonate is obtained at 678 K. The energies of the reactions involved and the mechanism of decomposition at each stage have been examined. The values of kinetic parameters, e.g. order of reaction, activation energy and the frequency factor are also evaluated. The results have been adequately interpreted in the light of existing theories.
Infrared Spectroscopic, Thermal and Electromagnetic Studies of Zinc Tartrate Single Crystals Grown by the Silica‐Gel Technique
The paper reports on the growth of single crystals of zinc tartrate, by reaction of aqueous solutions of tartaric acid (L +) and zinc chloride in silica gels. The grown crystals have been characterized by X-ray, infrared spectroscopy, qualitative elemental analysis, thermoanalytical techniques, and electromagnetic studies. 
 
 
 
En este articulo se describe el crecimiento de monocristales de tatrato de zinc, por reaccion de soluciones acuosas de acido tartarico (L +) y cloruro de zinc en geles de silice. Los cristales crecidos han sido caracterizados por rayos-X, espectroscopia infrarroja, analisis elemental cualitativo, tecnicas termoanaliticas y estudios electromagneticos.