ETCHING SOLUTION FOR DETECTION OF GLASS CERAMIC MATERIAL MICROSTRUCTURE Russian patent published in 1995 - IPC

Abstract RU 2028276 C1

FIELD: chemical treatment of glass ceramic materials. SUBSTANCE: etching solution has, vol.%: ortho-phosphoric acid 70-80; chrome anhydride 10-15, and ethanol 10-15. Etching solution is prepared by sequence dissolving of ortho-phosphoric acid in ethanol following by addition of chrome anhydride. EFFECT: enhanced quality of etching solution. 1 tbl

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RU 2 028 276 C1

Authors

Batalin B.S.

Makarova L.E.

Pravina N.A.

Dates

1995-02-09—Published

1991-01-11—Filed