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pro vyhledávání: '"H. D. Cogan"'
Publikováno v:
Journal of the American Chemical Society. 56:1815-1819
Autor:
C. A. Setterstrom, H. D. Cogan
Publikováno v:
Chemical & Engineering News Archive. 24:2499-2501
SILICA, in the free state and combined with metallic oxides, constitutes about 60% of the solid crust of the earth; it is one of nature's fundamental building materials. The chemist in his search for new and better products often finds that natural m