iron sulfide
Also found in: Acronyms.
iron sulfide
[′ī·ərn ′səl‚fīd] (inorganic chemistry)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Also found in: Acronyms.
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Several iron sulfide polymorphs have been identified within oil and gas pipelines.
Moreover, it was reported that the formation of gold NPs by Plectonema boryanum UTEX 485 occurred by three possible mechanisms involving iron sulfide, localized reducing conditions, and metabolism [148].
These naturally occurring, marine-derived soils are characterised by a highly acidic (pH <3.5) oxidised horizon, overlying a neutral to alkaline (pH >6.5) reduced horizon rich in iron sulfides. These soils are stable under reducing conditions.
The main conclusions obtained from these studies have been: i) both abiotic and biotic iron sulfide films ate related to the formation of tubercles on the steel surface.
It can be found on quartz, dolomite, iron sulfide minerals and chalcopyrite.
Bush RT (2000) Iron sulfide micromorphology and mineralogy in acid sulfate soils: their formation and behaviour.
"When you bring this iron sulfide to the surface, what you're doing is exposing these metal sulfides to oxygen and water," Chapin says.
Region 3 contains high levels of ferrous iron in the first meter of sediment, where a black precipitate of iron sulfide exists just beneath the sediment surface.
Pyrite is iron sulfide. When this chemical is exposed to air or water it forms sulfuric acid.
Another possible mechanism could be iron sulfide and residual unreacted iron in the return activated sludge flow.
Characteristic of the mixed regime is the formation of scales of iron carbonate and iron sulfide. The application of a sweet corrosion model for the mixed regime appears justified, though it maybe conservative [4].
The EPS attracts the paraffin crystals, asphaltenes and iron sulfide to form a deposit on any surface.
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