| Abstract: | An 1H pulsed n.m.r. study of a series of amorphous sodium silicate hydrates (Na:Si= 1:1.61) is reported. Both transverse and longitudinal relaxations were examined. The transverse relaxation curves could be resolved into a Gaussian component and a component exhibiting dipolar splitting. These components were assigned to protons in hydroxyl groups and water, respectively. It was found that the hydroxyl content was independent of the total proton content. The implications of this for the structure of these solids is discussed in terms of various models. |
