OPTICAL-PROPERTIES OF GOLD IN ACETATE GLASSES

Colors of gold ruby glasses are variable, depending in parr on the siz es of the gold particles dispersed in the colloidal state throughout t he silicate glass. Gold has been incorporated into analogous low-melti ng acetate liquids and glasses. The resulting colors imparted to lead- lithium acetate glasses and sodium-potassium-calcium acetate glasses v ary from pink to purple, as the colloidal dispersion is affected by th e structure of the acetate system. The structural dependence of the co lor of gold in these acetate systems is unlike that for the dependence of the color of Co2+ in the same acetates. (C) 1998 Elsevier Science B.V. All rights reserved.