SOLUTION FOR PICKLING FIBERS Russian patent published in 1994 - IPC

Abstract RU 2019553 C1

FIELD: metallography. SUBSTANCE: the solution contains a mixture of nitric acid and hydrofluoric acid, the ratio being as follows (vol %): 50-99 nitric acid (d=1.4) and 1-50 48% hydrofluoric acid. EFFECT: improved properties of the solution. 1 tbl

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RU 2 019 553 C1

Authors

Мakarova L.Е.

Dates

1994-09-15—Published

1989-04-07—Filed