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|1. (WO1978000001) LOW TEMPERATURE SYNTHESIS OF VITREOUS BODIES AND THEIR INTERMEDIATES|
|Title:||LOW TEMPERATURE SYNTHESIS OF VITREOUS BODIES AND THEIR INTERMEDIATES|
A method of making glass of high purity and in virtually unlimited shapes via solution deposition on a porous self-supporting body by reaction between a first solution and a second solution; an a product made thereby. The rust solution containing at least one basic glass forming solute is confined within a porous container, the walls of which are substantially impermeable to the basic solute. The second solution containing at least one acidic solute is diffused into the porous container through its walls which are substantially permeable to the said acidic solute. The reaction between the rust solution and the second solution takes place within the porous container leading to the deposition of a self-supporting porous body on the inside walls of the container. The porous body which is crystalline, vitreous or intermediate between the two, is purified by leaching and/or washing, dried and thermally consolidated, to a transparent non-porous glass.