FIELD: manufacture of heart valve prostheses. SUBSTANCE: electrolyte contains the following components, mass-% nitric acid, 7-16; hydrofluoric acid, 27-30; N-(4-trifluoromethyl-3,6-dioxaperfluoroctane) sulfonamide propylene-N, N-dimethyl-N-hydroxyethylammoniumchloride. EFFECT: enhanced efficiency.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF POLISHING SOLUTION PREPARING | 1990 |
|
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| METHOD OF PROCESSING PHOSPHATE RARE-EARTH CONCENTRATE ISOLATED AT NEUTRALIZATION OF NITROGEN-PHOSPHATE SOLUTION OBTAINED AFTER APATITE OPENING WITH NITRIC ACID | 1992 |
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| ELECTROLYTE FOR ELECTROCHEMICAL POLISHING OF TITANIUM AND ITS ALLOY ARTICLES | 0 |
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SU593884A1 |
