The Effect of Addition Agents on the Cathode Polarization in the Cyanide Zinc Bath

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Other Title
  • シアン化亜鉛浴における陰極分極現象に及ぼす添加剤の影響
  • The Effect of Addition Agents on the Electrodeposition of Metals (Part 2)
  • 「金属電着における添加剤の作用」(第2報)

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Description

Changes in cathode polarization, produced by the addition of organic and inorganic substances to the cyanide zinc bath have been investigated.<br>The addition agents studied fall into four classes according to the effect they produce:<br>i) Compounds which have no apparent effect on the cathode polarization. Inorganic salts of Se, Ag, Hg and Cd. Organic compounds, such as butyne diol (1, 4), propargyl alcohol, saccahrin and anthranillic acid.<br>ii) Those which increased the hydrogen overvoltage as well as the cathode polarization of zinc. Benzaldehyde, vanillin, heliotropine, coumarine, methylvinyl ketone, gelatin, peptone, polyvinyl alcohol and turkey-red oil.<br>iii) Inorganic sulfur compounds, such as Na2S and Na2S2O3 produced the bright deposits even though they had no remarkable effect on the cathode polarization.<br>iv) The use of organic compounds, such as vanillin, heliotropine, or polyvinyl alcohol in conjunction with the metallic salt of Ni, Co, Mo or W had the pronounced effect on the cathode polarization accompanied by the bright deposits.

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Details 詳細情報について

  • CRID
    1390001204115025792
  • NII Article ID
    130003993334
  • DOI
    10.4139/sfj1950.11.638
  • ISSN
    18843395
    00260614
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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