Solubility and Surface Properties of Talc in a Physiological Fluid — Results of in Vitro Experiments at 37 °C

Summary

Solubility and surface properties of granulated talcs and talc powders were investigated at 37° C in Gamble’s solution in a closed system. All talc samples release only small amounts of Si into the physiological fluid. Ca and Mg are incorporated into precipitations and gel-like coatings covering the samples at least after 30 days of treatment. Electron diffraction analyses of treated talc powders exhibit remarkable distortions of the diffraction pattern. Comparing all the results with corresponding data for asbestos fibers a different surface reactivity of talc can be stated.