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reducing atmosphere composed of a mixed atmosphere of methane, ammonia and hydrogen sulfide. Some hypotheses for the origin of life invoke a reducing...

pitting corrosion may also occur under anoxic, or reducing, conditions. Indeed, the very harmful reduced species of sulfur (H2S, HS− , S2− , HS–S− , − S–S−...

carbon is present in water, bacteria are fed by directly reducing As(V) to As(III) or by reducing the element at the binding site, releasing inorganic arsenic...

strongest. Some elements and compounds can be both reducing or oxidizing agents. Hydrogen gas is a reducing agent when it reacts with non-metals and an oxidizing...

reduction. It was conjectured that green rust may be formed in the reducing alkaline conditions below the surface of marine sediments and may be connected to...

gradient with an oxidizing environment at the surface and increasingly reducing conditions below the surface. Redox gradients are generally understood at the...

Sulfate-reducing microorganisms (SRM) or sulfate-reducing prokaryotes (SRP) are a group composed of sulfate-reducing bacteria (SRB) and sulfate-reducing archaea...

indicates oxidizing conditions. Under reducing conditions, the sulfates it contains can be reduced back to sulfide by sulfate-reducing bacteria. This can...

Uranium is mobile under oxidising conditions and precipitates under reducing conditions, and thus the presence of a reducing environment is essential for the...

geochemical signature of marine conditions, while soluble divalent iron was likely liberated under reducing conditions from the subglacial bedrock minerals...

However, under reducing conditions, the cobalt center is reduced to Co(II) or even Co(I), which are usually denoted as B 12r and B 12s, for reduced and super...

buffer, allowing serpentinization to produce highly reducing conditions. Under these conditions, water is capable of oxidizing ferrous (Fe2+ ) ions in...

solvent, the aldehyde forms a methoxy acetal that is inactive in the reducing conditions. Kürti, László; Czakó, Barbara (2005). Strategic Applications of...

deposits. The presence of osbornite, which only forms under very reducing conditions and at very high temperatures, argues for an extraterrestrial origin...

resistant to many forms of sulfuric and hydrochloric acids under reducing conditions. Monel's corrosion resistance makes it ideal in applications such...

the early 1960s to study human locomotion under simulated lunar gravity conditions. Located at NASA's Langley Research Center in Virginia, it was designed...

redox conditions. Sulfide-facies are precipitated under the most reducing conditions. There is a lack of iron-rich sedimentary rocks in shallow waters...

intensive colours found in the interiors of the aggregates. In spring, reducing conditions occur. The soil is ploughed regularly. Laboratory characteristics:...

axis when its octahedra are viewed sequentially. When formed under reducing conditions, oxygen vacancies can occur, coupled to Ti3+ centers. Hydrogen can...

deposited. For example, the formation of pyrite is characteristic of reducing conditions in marine environments. Pyrite can form as cement, or replace organic...