Corrosion inhibition of 304SS in sulfuric acid solutions by 2-methyl benzoazole derivatives

被引：36

作者：

Al-Mayouf, AM ^{[1
]}

Al-Suhybani, AA ^{[1
]}

Al-Ameery, AK ^{[1
]}

机构：

[1] King Saud Univ, Coll Sci, Dept Chem, Riyadh 11451, Saudi Arabia

来源：

DESALINATION | 1998年 / 116卷 / 01期

关键词：

304 stainless steel; sulfuric acid; inhibition; heterocyclic;

D O I：

10.1016/S0011-9164(98)00054-X

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The effect of various heterocyclic compounds containing nitrogen, oxygen, sulfur, or selenium atoms on the corrosion of type 304SS in 2M sulfuric acid solution was studied by weight loss, gasometry, de and ac techniques. It was found that the inhibition efficiency of tested compounds follows the order 2-methylbenzoselenazole (2-MBS) > 2-methyl-benzothiazole (2-MBT) > 2-methylbenzoxazole (2-MBO) > 2-methylbenzimidazole (2-MBI); the adsorption isotherms follow the Frumkin isotherm and the thermodynamic/kinetic model. Polarization curves showed that these compounds acted by decreasing the available surface area with no change in reaction mechanism. The stability of the formed film was verified by the AC impedance technique.

引用

页码：25 / 33

页数：9

共 18 条

[1] 2-HYDRAZINO-6-METHYL-BENZOTHIAZOLE AS AN EFFECTIVE INHIBITOR FOR THE CORROSION OF MILD-STEEL IN ACIDIC SOLUTIONS [J].

AJMAL, M ;

MIDEEN, AS ;

QURAISHI, MA .

CORROSION SCIENCE, 1994, 36 (01) :79-84

[2]

ALMEGREN HA, 1992, THESIS KING SAUD U

[3]

ATEYA BG, 1984, CORROS SCI, V24, P509, DOI 10.1016/0010-938X(84)90033-7

[4] DETERMINATION OF THERMODYNAMIC AQUEOUS ACID-BASE STABILITY-CONSTANTS FOR SEVERAL BENZIMIDAZOLE DERIVATIVES [J].

DONKOR, KK ;

KRATOCHVIL, B .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1993, 38 (04) :569-570

[5]

ELAWADY A, 1990, INT J CHEM, V1, P169

[6] KINETIC-THERMODYNAMIC AND ADSORPTION-ISOTHERMS ANALYSES FOR THE INHIBITION OF THE ACID CORROSION OF STEEL BY CYCLIC AND OPEN-CHAIN AMINES [J].

ELAWADY, AA ;

ABDELNABEY, BA ;

AZIZ, SG .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1992, 139 (08) :2149-2154

[7]

Gilchrist T.L., 1992, HETEROCYCLIC CHEM, V2nd

[8]

HEUSLER KE, 1957, PHYS CHEM, V61, P122

[9] THE INHIBITION OF THE DISSOLUTION OF IRON IN SULFURIC-ACID BY HALIDE-IONS [J].

JESIONEK, M ;

SZKLARSKASMIALOWSKA, Z .

CORROSION SCIENCE, 1983, 23 (02) :183-187

[10] THE INFLUENCE OF 1-(2-PYRIDYLAZO)-2-NAPHTHOL (PAN) ON THE CORROSION OF TITANIUM IN 10 N SULFURIC-ACID-SOLUTION [J].

JIANG, ZY ;

WANG, YT ;

HU, Q ;

HUANG, SY .

CORROSION SCIENCE, 1995, 37 (08) :1245-1252

← 1 2 →