Title: Sodium Ethoxide Concentrated Solution Synthesis at Ambient Temperature Using Sodium Hydroxide and Ethanol-90 in Excess
Abstract: Sodium ethoxide is a specific chemical product of synthesis used in laboratory, thus its presence at the suppliers stays very periodic and on order. It was in that sense that this project to synthesize a concentrated solution of sodium ethoxide got off at ambient temperature, under normal atmospheric pressure in an uncovered beaker using ethanol 90% of purity and sodium hydroxide 99% of purity seeing that the ethanol molecules were in excess in comparison with sodium hydroxide molecules which quantities were all soluble in ethanol. The initial calculated pH was equal to 15.23. In addition, not only an extraction procedure of the concentrated sodium ethoxide was done but also a titration procedure of the concentrated sodium ethoxide solution by hydrochloric acid HCl-0.1N was established and permitted to evaluate kinetic parameters of this synthesis reaction on these experimental conditions. The evaluated molar conversion from the initial quantities of sodium hydroxide was 88.49% after 3h25mn of reaction. It was noticed that the formation of sodium ethoxide was initially very important and very speed confirming the negativity of its standard molar enthalpies. Thus, the initial speed formation of synthesized sodium ethoxide was approximately equal to 0.013 [[mol×l<sup>-1</sup>×s<sup>-1</sup>]. Once synthesized, the total crystallization of the concentrated sodium ethoxide was tried with an evaluation of its porosity by immersion in dichloromethane giving a value in the order of 54.60%.