Trace metal catalysis and the activation of molecular oxygen in aquatic environments
Trace metal catalysis and the activation of molecular oxygen in aquatic environments have applications in industrial and domestic water pollution control. The oxidation of the sulfite ion by oxygen gas, which is catalyzed by cobalt(II) salts, is used in mass transfer studies on aeration devices to obtain an initial depletion of dissolved oxygen. Catalytic autoxidation of sulfur dioxide by water-soluble aerosol-borne metals may be an important nonphotolytic pathway for the rapid formation of sulfuric acid aerosols. Hydrogen sulfide autoxidation is sensitive to catalysis by manganese(II), copper(II), iron(II), nickel(II), and cobalt(II) salts. Cobalt(II)-, nickel(II)-, and copper(II)-4,4',4'',4'''-tetrasulfophthalocyanine (TSP) homogeneously autoxidizes hydrogen sulfide and sulfur dioxide in aqueous solution. The catalytic activity of Co-TSP toward the autoxidation of substituted phenolics and benzaldehyde is comparable to the dioxygenase amd monooxygenase released by certain strains of Pseudomonas.
- Research Organization:
- Univ. of Minnesota, St. Paul
- OSTI ID:
- 5447194
- Report Number(s):
- CONF-800303-
- Journal Information:
- Am. Chem. Soc., Div. Environ. Chem., Prepr.; (United States), Vol. 20:1; Conference: 179. national meeting of the American Chemical Society, Houston, TX, USA, 23 Mar 1980
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BENZALDEHYDE
OXIDATION
HYDROGEN SULFIDES
METALS
CATALYTIC EFFECTS
OXYGEN
CHEMICAL ACTIVATION
PHENOLS
SULFUR DIOXIDE
AEROSOLS
AQUATIC ECOSYSTEMS
AQUEOUS SOLUTIONS
MASS TRANSFER
TRACE AMOUNTS
WATER POLLUTION CONTROL
ALDEHYDES
AROMATICS
CHALCOGENIDES
CHEMICAL REACTIONS
COLLOIDS
CONTROL
DISPERSIONS
ECOSYSTEMS
ELEMENTS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
MIXTURES
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
SOLS
SOLUTIONS
SULFIDES
SULFUR COMPOUNDS
SULFUR OXIDES
520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)