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The paper describes the investigation of the properties of silver besilicatesalt colloids in water medium. Ag6Si2O7 was obtained in a soft conditions, inwater medium, at temperatures and pressure close to room ones. The morphologyand crystallinity of matter under investigations appear to depend on the growthconditions. Slow growth resulted in quasi-crystalline yellowish whiskers, whilehigh concentration of precursors led to fast formation of the quasi-amorphousaggregates. The elemental constitution of object under study was determinedwith the help of Comebax-INCA set-up, and was then proved by chemical analysis.The ratio of elements was close to Ag6Si2O7, and depended a little whether thesample was taken from the sediments of reaction or from dried residue of aliquid medium. The experiments in Raman technique revile severalwell-resolvable bands in whisker-like samples, but only few of them were ableto detect in quasi-amorphous material. In the last case the bands were broader,but the positions of weak broad bands were close to the positions ofcorresponding bands in whiskers. We can suggest, that the bands, common in twoformer cases, are due to oscillation in bepyramidal molecules of Ag6Si2O7, andthe bands, seen only at whiskers, are due to long-rang order. The very specialpeculiarity was observed under chemical test with hydrochloric acid. The whiteflakes sedimentation appeared after addition of NaCl but do not appeared whenHCl was added. This result can be explained if to assume the existence ofsilicon acid shell around the colloidal particles of silver besilicate. Themodel of silicon acid shell around colloids was proved by high resolutionelectron microscopy.

The properties and the structure of colloid agregates of the silver besilcate Ag6Si2O7 in water medium