iron iron sulfide water thps composition Prior art date 2008-10-16 Legal status (The legal status is an assumption and is not a legal conclusion. Several different iron sulfides have been synthesized from aqueous sulfide solutions at low temperatures (20°-90° C.) and atmospheric pressure and identified by means of X-ray diffraction and/or chemical analysis. and an amorphous iron(III) sulfide,16 as iron and sulfur sources yielded C16TMA-Fe2S3-M after hydrothermal synthesis at 110 °C for 16 h. Fig.
Iron sulfide or Iron sulphide can refer to range of chemical compounds composed of iron and sulfur.. Natural minerals.
Iron sulfide, ferrous sulfide, black iron sulfide, protosulphuret of iron. It reduces resazurin and reacts much more rapidly with O2 than does either soluble sulfide (HS)- or cysteine. Understanding the mechanism and kinetics of iron sulfides film formation is a complicated and important task. Batch experiments were used to evaluate the reductive immobilization of hexavalent uranium (U(VI)) by synthesized, amorphous iron sulfide (FeS) in the anoxic environment. By increasing order of stability: Iron(II) sulfide, FeS, the less stable amorphous form;; Greigite, a form of iron(II,III) sulfide (Fe 3 S 4), analog to magnetite, Fe 3 O 4;; Pyrrhotite, Fe 1−x S (where x = 0 to 0.2), or Fe 7 S 8;; Troilite, FeS, the endmember of pyrrhotite; Amorphous nickel–iron hydroxide films on nickel sulfide nanoparticles for the oxygen evolution reaction† Wenjun He , a Gang Ren , a Ying Li , a Dongbo Jia , a Shiyun Li , a Jianing Cheng , a Caichi Liu , a Qiuyan Hao ,* a Jun Zhang * ab and Hui Liu * a In the present work, we studied the effect of FeS on strictly anaerobic, fermenting bacteria. 115-120. Ultrafast Formation of Amorphous Bimetallic Hydroxide Films on 3D Conductive Sulfide Nanoarrays for Large‐Current‐Density Oxygen Evolution Electrocatalysis Xu Zou State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012 P. R. China Many types of iron sulfides may form, such as amorphous ferrous sulfide, mackinawite, cubic ferrous sulfide, troilite and pyrite. The tests were initiated by spiking 168.0 μM U(VI) to 0.18 g/L FeS suspensions under a CO2-free condition with pH varied from 5.99 to 10.17.

In: FEMS Microbiology letters. These iron sulfides have different stoichiometries of Fe and S and different crystal structures. In: FEMS Microbiology letters. Environmental and health concerns arising from the toxicity of organic dye effluents is still the issue of the twenty-first century. The properties of mackinawite have been extensively reviewed ( Morse et al. , 1987 ; Rickard et al. Attachment to amorphous iron sulfide increases the activity of strictly anaerobic, gallic acid-degrading bacteria. Identifiers CAS Number.

Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) 78 (1), pp. In addition, the formation of a highly insoluble Cr(III) product would decrease the likelihood of future Cr(III) re-oxidation. The initial precipitate formed during the rapid mixing of H 2 S and Fe(II) is an amorphous iron sulfide that transforms very rapidly to a poorly crystalline form of mackinawite. Batch experiments were used to evaluate the reductive immobilization of hexavalent uranium (U(VI)) by synthesized, amorphous iron sulfide (FeS) in the anoxic environment. Amorphous iron sulfide, the typical particulate surface material in many anaerobic environments, supports growth of methanogenic bacteria [13,14]. Abstract. , 1994 ; Vaughan and Craig, 1978 ). 1(b) shows the resultant XRD pattern in which three reflections are observed, consistent with diffraction from a poorly ordered hexagonal phase with a … Amorphous nickel–iron hydroxide films on nickel sulfide nanoparticles for the oxygen evolution reaction† Wenjun He , a Gang Ren , a Ying Li , a Dongbo Jia , a Shiyun Li , a Jianing Cheng , a Caichi Liu , a Qiuyan Hao ,* a Jun Zhang * ab and Hui Liu * a The reduction of Cr(VI) to Cr(III) decreases the toxicity and mobility of chromium contaminants in soils and water.