PASSIVITY OF METALS IN CONCENTRATED AND ANHYDROUS SOLUTIONS OF SULFURIC-ACID

被引：16
作者：
BANAS, J
MAZURKIEWICZ, B
STYPULA, B
机构：
[1] Academy of Mining and Metallurgy, Institut of Foundry Engineering, Kraków
来源：
ELECTROCHIMICA ACTA | 1992年 / 37卷 / 06期
关键词：
PASSIVATION; PASSIVITY; ELECTROLYTIC POLARIZATION; OXIDATION; ANODIC FILM;
D O I：
10.1016/0013-4686(92)85224-9
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Passivity of iron, nickel and chromium has been investigated in anhydrous and concentrated solutions of sulphuric acid. The oxide-hydroxide film can be formed on the metal surface only in solutions with the molar ratio of acid to water lower than 1:4. In concentrated and anhydrous environments passivation proceeds with participation of undissociated acid molecules, which can become a source of oxygen necessary to oxide formation, and a thick oxide-salt layer is formed on the metal surface.
引用
收藏
页码：1069 / 1073
页数：5
相关论文
共 50 条
  • [31] Electrochemical dissolution behavior of Narloy-Z in sulfuric acid and sulfamic acid solutions
    Shen, Chunjian
    Zhu, Zengwei
    JOURNAL OF APPLIED ELECTROCHEMISTRY, 2023, 53 (02) : 401 - 414
  • [32] Electrochemical dissolution behavior of Narloy-Z in sulfuric acid and sulfamic acid solutions
    Chunjian Shen
    Zengwei Zhu
    Journal of Applied Electrochemistry, 2023, 53 : 401 - 414
  • [33] Stability of 20 Biogenic Amino Acids in Concentrated Sulfuric Acid: Implications for the Habitability of Venus' Clouds
    Seager, Maxwell D.
    Seager, Sara
    Bains, William
    Petkowski, Janusz J.
    ASTROBIOLOGY, 2024, 24 (04) : 386 - 396
  • [34] Formic acid electrooxidation on palladium nanostructured electrodes in concentrated solutions
    Montero, Maria A.
    de Chialvo, Maria R. Gennero
    Chialvo, Abel C.
    ELECTROCHIMICA ACTA, 2024, 475
  • [35] The interaction of thiourea and formamidine disulfide in the dissolution of gold in sulfuric acid solutions
    Yang, Xiyun
    Moats, Michael S.
    Miller, Jan D.
    MINERALS ENGINEERING, 2010, 23 (09) : 698 - 704
  • [36] Removal of Arsenic from Sulfuric Acid Solutions Using Jarosite and Sonication
    Hosokawa, Ryota
    Okawa, Hirokazu
    JAPANESE JOURNAL OF APPLIED PHYSICS, 2012, 51 (07)
  • [37] Oxidation of iron (II) in sulfuric acid solutions by a pulsed electric discharge
    Osokin, G. E.
    Kornev, Ya. I.
    Galanov, A. I.
    Lobanova, G. L.
    Yavorovsky, N. A.
    Ushakov, V. Ya.
    RUSSIAN PHYSICS JOURNAL, 2012, 55 (06) : 637 - 643
  • [38] Oxidation of iron (II) in sulfuric acid solutions by a pulsed electric discharge
    G. E. Osokin
    Ya. I. Kornev
    A. I. Galanov
    G. L. Lobanova
    N. A. Yavorovsky
    V. Ya. Ushakov
    Russian Physics Journal, 2012, 55 : 637 - 643
  • [39] The effect of chloride ions on the electrochemical dissolution of chalcopyrite in sulfuric acid solutions
    Liu, Qingyou
    Chen, Miao
    Yang, Yi
    ELECTROCHIMICA ACTA, 2017, 253 : 257 - 267
  • [40] STABILITY OF ZIRCONIUM PASSIVE FILMS IN NITRIC AND SULFURIC-ACID-SOLUTIONS
    ELMOTAAL, SMA
    HILAL, NH
    BADAWY, WA
    ELECTROCHIMICA ACTA, 1994, 39 (17) : 2611 - 2617
12345