Method for reproducing composition of electrolytic polishing sol

Details Method for reproducing composition of electrolytic polishing sol Method for reproducing composition of electrolytic polishing sol

1986-01-06

1987-06-30

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 3, 204231, C09G 102

Patent

active

046768335

ABSTRACT:
A method of reproducing a composition of an electrolytic polishing solution for a niobium material, characterized in that, when the composition of the electrolytic polishing solution for the niobium material which is composed of HF, H.sub.2 SO.sub.4 and water is lowered in the concentration of HF, the composition is replenished with fluorosulfuric acid and water in an amount equimolar therewith or so in order to recover the concentration of HF while the content of water is maintained substantially at a constant level.

REFERENCES:
patent: 2466095 (1949-04-01), Gail
patent: 3290193 (1966-12-01), Saizle
patent: 4072588 (1978-02-01), Diepers
Chem. Abstract, vol. 83: 87059m., Miga., 1974.
Chem. Abstract, vol. 84: 51,466y., Schmidt, Sep. 75.
Chem. Abstract, vol. 76: 41312, Schmidt, Dec. 71.
Chem. Abstract, vol. 49: 8571, Mitchell, Feb. 55.

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