soluble glass

His name is chiefly known for his mineralogical observations and for his work on soluble glass.

In this case we may imagine the wood to have been acted on by water holding in solution silica, combined with soda or potash, in the manner of what is termed soluble glass.

If the paper has to be made transparent, a little of a solution containing one part soluble glass in four to eight parts water is added.

The substances employed for this purpose are borax, alum, soluble glass, and phosphate of ammonia.

Interesting experiments have been made with soluble glass for coloring corals and shells.