To prepare the dissolutions were used: NaOH de 98% purity lentils, PANREAC y bulk sodium silicate 8.2% Na20, 27% Si02 y 64.8% H20, d=1.38 g/cc.
Para preparar las disoluciones se empleo: NaOH lentejas con una pureza de 98%, PANREAC y silicato sódico a granel 8.2% Na20, 27% Si02 y 64.8% H20, d=1.38 g/cc.