| 摘要 |
1,226,459. Electrolytic capacitors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 19 Aug., 1969 [22 Aug., 1968], No. 41373/69. Heading H1M. The forming or working electrolyte for an electrolytic capacitor comprises a polyhydric alcohol as solvent, a basic nitrogen compound, two inorganic acids and one organic acid and/or the reaction products of these acids with the nitrogen compound, and an additive which inhibits dissolution of the formed oxide coating and resulting gas formation, the additive being either a compound containing hexavalent chromium or phenylglycol or an alkylpyridine or furfuryl alcohol. The solvent may be ethylene glycol, the base ammonia, the acids boric, phosphoric and acetic acids, and the inhibitor chromic acid, ammonium chromate or ammonium dichromate. |
