iron sulfide


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iron sulfide

[′ī·ərn ′səl‚fīd]
(inorganic chemistry)
References in periodicals archive ?
In the presence of sulfur species (either biogenic or abiotic) carbon steel firstly develop a film of mackinawite that later changes through several chemical and electrochemical paths to more stable iron sulfides [4] In all cases iron sulfides are characterized by strong cathodic effects on the hydrogen reduction reaction, causing an indirect increase in the corrosion rate.
DW Liquid ROS is a new technology that uses reactive oxygen species (ROS) to form a strong oxidizing agent that quickly reacts with hydrogen sulfide, iron sulfide, biofilm, and bacteria.
Greigite is an iron sulfide that may be superior to magnetite in some applications due to its slightly different physical and magnetic properties.
Acid sulfate soils (ASS) contain iron sulfides (principally pyrite) or the products of sulfide oxidation (White and Melville 1996).
In addition, the firm's ceramic tubes are white and free of iron sulfide.
The analyses showed a dominance of iron sulfide with an associated 25 to 35% organic material.
Of particular importance is its tri-layered shell structure, which consists of an outer layer embedded with iron sulfide granules, a thick organic middle layer, and a calcified inner layer.
What makes these flaps unique is their 100-micrometer-thick coating of iron sulfide, a biological armor that's made of mineral particles just 1 [micro]m in diameter.
McKay of the Johnson Space Center, identified the telltale compounds as polycyclic aromatic hydrocarbons, called PAHs, which often have biological origins and are associated with coal and diesel exhaust, and the minerals magnetite and iron sulfide, both of which are related to bacterial action on Earth.
For a long time, founders were told to avoid sulfur; now it is known that it should be used with manganese in order to form manganese sulfide rather than iron sulfide which with its low melting point migrates to the eutectic cell boundaries.
Other liquid cleaners that dissolve iron sulfide must have water in them in order to facilitate the reaction.