Silicon is the second most abundant element in Earth’s crust (28% compared to oxygen at 46%) occurring as silicon dioxide (sand, flint, quartz) and various silicates. Sodium silicate is the generic name given to a series of compounds derived from soluble sodium silicate glass. Aqueous solutions are important in biology, geology and numerous technical processes including for example the manufacturing of sol gels and zeolites. Sodium silicate is also used as an activator for geopolymer cements synthesis, which are a low carbon emission type. When silicates are combined with cement ingredients, they react chemically in order to form masses with strong binding properties. In this study different silica sands have been investigated in order to synthesize sodium silicate, which has several applications in the industry. All the silica sand banks were compared with a control sample, then different reactions were studied and performed in order to obtain the best sodium silicate. All reactions were evaluated and their products characterized, which comprised structural and microstructural analysis including, but not limited to, thermogravimetric analysis, scanning electron microscopy, energy dispersive spectrometry, Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray fluorescence (XRF) and X-ray powder diffraction (XRD). The best reaction is presented and discussed.El silicio es el segundo elemento más abundante en la corteza terrestre (28% comparado con el oxígeno 46%) y se presenta como dióxido de silicio (arena, piedra, cuarzo) y varios silicatos. Silicato de sodio es el nombre genérico dado a una serie de compuestos derivados del silicato de sodio soluble. Soluciones acuosas de silicato son importantes en biología, geología y un número de procesos químicos incluyendo por ejemplo la manufactura de sol geles y zeolitas. El silicato de sodio es también usado como activador para la síntesis de cementos geopoliméricos, los cuales son reconocidos por presentar una baja huella de carbono. Cuando los silicatos son combinados con ingredientes del cemento, reaccionan químicamente para formar masas con fuertes propiedades ligantes.