INFLUENCE OF COPPER(II) IONS ON THE KINETICS OF ASCORBIC-ACID OXIDATION BY METHYLENE-BLUE

被引：0
|
作者：
STRIZHAK, PE [1 ]
机构：
[1] NATL ACAD SCI UKRAINE,LV PISARZHEVSKY PHYS CHEM INST,KIEV 252039,UKRAINE
来源：
TEORETICHESKAYA I EKSPERIMENTALNAYA KHIMIYA | 1994年 / 30卷 / 05期
关键词：
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A kinetic scheme for ascorbic acid oxidation by methylene blue in the presence of copper(II) ions is proposed on the basis of spectrophotometric investigation of this reaction and literature data. Introduction of copper(II) ions leads to an increase in the rate constant of the reaction due to the increasing concentration of ascorbic acid radicals. The inhibition of the process at low copper(II) concentrations can be explained, faking into account redox processes proceeding in the system, which involve oxygen species dissolved in water.
引用
收藏
页码：277 / 282
页数：6
相关论文
共 50 条
  • [21] ACCELERATING EFFECT OF HISTIDYLHISTIDINE ON THE COPPER(II)-CATALYZED OXIDATION OF ASCORBIC-ACID
    TAKAMURA, K
    SAKAMOTO, M
    OHASHI, S
    CHEMICAL & PHARMACEUTICAL BULLETIN, 1980, 28 (08) : 2318 - 2324
  • [22] KINETICS AND MECHANISM OF THE OXIDATION OF THIOUREA BY METHYLENE-BLUE IN ACIDIC MEDIUM
    BHARGAVA, R
    MISHRA, KK
    PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS, 1991, 63 (1-2): : 71 - 79
  • [23] OXIDATION OF ASCORBIC-ACID BY A TRIVALENT COPPER COMPLEX
    YANO, Y
    TAKANO, S
    KATO, Y
    TAGAKI, W
    JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1979, (09): : 1227 - 1229
  • [24] KINETICS OF DISPROPORTIONATION OF SEMI-METHYLENE BLUE AND OF OXIDATION OF LEUCO-METHYLENE BLUE BY METHYLENE-BLUE AND BY FE(III)
    HAY, DW
    RAY, S
    LICHTIN, NN
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1979, (SEP): : 245 - 245
  • [25] KINETICS OF THE REDUCTION OF METHYLENE-BLUE BY SN(II) CATALYZED BY MOLYBDENUM
    GRASES, F
    VILA, R
    AMAT, E
    JOURNAL OF MOLECULAR CATALYSIS, 1990, 59 (01): : 17 - 21
  • [26] KINETICS OF CU(II) CATALYZED-OXIDATION OF CYSTEINE HYDROCHLORIDE BY METHYLENE-BLUE IN ACIDIC MEDIUM
    CHANSORIA, K
    MISHRA, KK
    PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS, 1992, 72 (1-4): : 55 - 64
  • [27] THE COPPER-CATALYZED OXIDATION OF ASCORBIC-ACID BY DIOXYGEN .4. THE EFFECT OF CHLORIDE-IONS ON THE KINETICS AND MECHANISM
    JAMESON, RF
    BLACKBURN, NJ
    JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1982, (01): : 9 - 13
  • [28] INVITRO OXIDATION OF URIC-ACID IN SERUM BY METHYLENE-BLUE
    ANDRANOVICH, T
    KELNER, MJ
    CLINICAL CHEMISTRY, 1986, 32 (01) : 177 - 179
  • [29] ASCORBIC-ACID AS REDUCING AGENT .5. KINETICS OF REDUCTION OF AU(III) IONS BY ASCORBIC-ACID
    RIPAN, R
    POP, G
    POP, I
    NASCU, C
    REVUE ROUMAINE DE CHIMIE, 1977, 22 (03) : 361 - 370
  • [30] KINETICS AND MECHANISMS OF THE OXIDATION OF ASCORBIC-ACID BY XENON DIFLUORIDE
    KOZLOV, YN
    USKOV, AM
    SHUVALOV, VF
    VASILENKO, AA
    ZHURNAL FIZICHESKOI KHIMII, 1990, 64 (03): : 676 - 682
12345