Sulfur thiosulfate

Cyanide poisoning poses some risk however, this is minimized both by the kinetic inertness of both Fe and Fe " cyano complexes and the high affinity of these ions for cyanide ([Fe"(CN)6] , fi6 10 [Fe "(CN)6] , Bg 10 [7, 35]. Small amounts of cyanide, which are released by photolysis and reduction products of nitroprusside, can usually be metabolized in the liver and kidneys by the enzyme rhodanase, which converts CN" to SCN [7, 36]. Cyanide can also be taken up by hydroxocobalamin to generate cy-anocobalamin (B12). As the conversion of cyanide to thiocyanate is dependent on the availability of sulfur, thiosulfate can be administered as an antidote [37]. Monitoring thiocyanate levels as an indicator of cyanide toxicity is no longer routine, but is done on patients with severe hepatic compromise who have been... 

The sulfur-oxidizing bacteria. Anaerobic conditions prevail in marine sediments, in poorly stirred swamps, and around hydrothermal vents at the bottom of the sea. Sulfate-reducing bacteria form high concentrations (up to mM) of H2S (in equilibrium with HS and s2-)318-320 This provides the substrate for bacteria of the genus Thiobacillus, which are able to oxidize sulfide, elemental sulfur, thiosulfate, and sulfite to sulfate and live where the aerobic and anaerobic regions meet.311 321-323 Most of these small gram-negative... 

For instance in hot brine from the French Dogger, where reduced sulfur species [hydrogen sulfide, organic and inorganic polysulfides, elemental sulfur, thiosulfate) were found, there was a good agreement between analytical and electrochemical results as can be seen from the comparison of the data of Table II and Figures 11 and 12 [18). 

Elemental sulfur, thiosulfates, metal sulfides, H2S, and tetrathionates can be oxidized to sulfuric acid by microorganisms generically referred to as thiobacilli. Corrosion in sewers and other concrete structures is often due to oxidation of sulfides generated by the activities of SRB and may occur in many steps. Concrete is a moderately porous mixture of alkaline inorganic precipitates and mineral aggregates. Anaerobic conditions in sewage support SRB that convert sulfate to H2S, which volatilizes to the sewer atmosphere and redissolves in condensate on the sewer crown [43] (Fig. 6). A second community of microorganisms at the... 

There are four sources for the anions contained in this solution. Chloride, nitrate, and fluoride usually originate from the production water, sulfate and sulfite are oxidation products of endogenous sulfur, thiosulfate is formed as a product of the reaction of H2S with cyanide, and organic acids are products of the thermal degradation of MDEA. The extremely high retention time for thiosulfate of... 

Compounds that contain divalent sulfur (thiosulfates, thiocyanates and sulfo salts) catalyze the irreversible redox reaction ... 

The group of microorganisms known as autotrophic bacteria obtain energy from the oxidation of a variety of inorganic compounds (ammonia, nitrite, sulfide, ferrous iron, hydrogen, carbon monoxide, sulfur, thiosulfate).The free energy changes and over-all efficiencies of a number of these processes have been calculated. We may take as an example the oxidation of nitrite to nitrate performed by Nitrobacter... 

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