Interaction of Molybdenum(VI) Oxyanions with +2 Metal Cations

Torres, Julia; Gonzatto, Lorena; Peinado, Guzmán; Kremer, Carlos; Kremer, Eduardo

doi:10.1007/s10953-014-0231-y

Cited by 20 publications

(16 citation statements)

References 23 publications

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“…In this report, molybdate association with Mg is 10 times stronger compared to the analogous interaction with Ca. However, our previous data show that both alkaline earth metal ions behave similarly towards the anion [25], in line with previous reports on alkalineearth interactions with anions. The formation (even in low percentages) of other ionic pairs [MMoO 4 ] for some 3d metal ions is not observed when new thermodynamic data are included.…”

Section: Speciation Of Trace Elementssupporting

confidence: 93%

“…To exemplify this, we can again focus on Mo and Se. In the case of Mo, the high stability of +6 oxidation state (E° MoO [27] using sample 4 concentrations and previously reported data [21,23,24,25] The presence of cations certainly will further modify the chemistry of these species. We can compare the results of samples taken at different oxygen concentrations, to study selenium speciation.…”

Section: Pe Influencementioning

confidence: 58%

“…Table S2 shows the results obtained for all speciation calculation, whereas Table 2 summarizes the most relevant data, indicating the predominant species of selected elements calculated for the equilibrium situation of all 32 samples using Visual MINTEQ software [26] complemented with recent data on trace elements [23,24,25]. Results show that major element concentrations are extremely important to define the chemical scenario.…”

Section: Resultsmentioning

confidence: 99%

“…This software contains data compiled from the NIST Critical Stability constants database. The thermodynamic database included in this program was complemented with recently reported data under low ionic strength, measured at 20.0°C [23,24,25]. Besides, two physicochemical parameters were also included as input data: pH and temperature.…”

Section: Journal Of Environment Pollution and Human Healthmentioning

confidence: 99%

“…is relatively greater in comparison with elements forming anionic species (e.g., selenium, molybdenum and tungsten) [21,22]. Some years ago, our group has started to study the interactions of elements forming anionic species under the conditions of the natural waters [23,24,25]. These data are the basis for the chemical model needed to assess the current status and the pollution trends in natural waters.…”

Section: Introductionmentioning

confidence: 99%

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Using Chemical Modeling to Asses Water Quality in the Raigón Aquifer System in Southern Uruguay

Torres¹,

Gonzatto²,

Goso³

et al. 2015

JEPHH

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The Raigón aquifer is an important groundwater system in southern Uruguay. The increasing use of groundwater resources in the last decades has provoked changes in the concentration of many elements which are strongly related to anthropogenic pollution sources. Concentration levels are useful to detect changes in reservoir status but it is also necessary to analyze their chemical significance in order to make an accurate assessment of the sources of contamination and the causes of changes. In this work we use the available thermodynamic data to calculate chemical speciation on these groundwater samples. Trace elements present as anions, in particular Se and . Results show that these anions interact in solution and are greatly influenced by the concentration of the abundant calcium ion. Localized changes in pH can strongly affect the situation. The same is observed with the pE parameter, but only in the case of Se. Chemical speciation of trace elements is in general highly dependent on pH, pE and concentration of major elements. In consequence, for a fixed analytical total concentration, these parameters can markedly change the situation, affecting the mobility, the bioavailability and environmental fate of these elements. The strategy employed in this work can also be extended to the study of many other environmental water scenarios.

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Section: Speciation Of Trace Elementssupporting

confidence: 93%

Section: Pe Influencementioning

confidence: 58%

Section: Resultsmentioning

confidence: 99%

Section: Journal Of Environment Pollution and Human Healthmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Using Chemical Modeling to Asses Water Quality in the Raigón Aquifer System in Southern Uruguay

Torres¹,

Gonzatto²,

Goso³

et al. 2015

JEPHH

Self Cite

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Dissolution of 2D Molybdenum Disulfide Generates Differential Toxicity among Liver Cell Types Compared to Non‐Toxic 2D Boron Nitride Effects

Guiney

Downing

et al. 2021

Small

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2D boron nitride (BN) and molybdenum disulfide (MoS2) materials are increasingly being used for applications due to novel chemical, electronic, and optical properties. Although generally considered biocompatible, recent data have shown that BN and MoS2 could potentially be hazardous under some biological conditions, for example, during, biodistribution of drug carriers or imaging agents to the liver. However, the effects of these 2D materials on liver cells such as Kupffer cells (KCs), liver sinusoidal endothelial cells, and hepatocytes, are unknown. Here, the toxicity of BN and MoS2, dispersed in Pluronic F87 (designated BN‐PF and MoS2‐PF) is compared with aggregated forms of these materials (BN‐Agg and MoS2‐Agg) in liver cells. MoS2 induces dose‐dependent cytotoxicity in KCs, but not other cell types, while the BN derivatives are non‐toxic. The effect of MoS2 could be ascribed to nanosheet dissolution and the release of hexavalent Mo, capable of inducing mitochondrial reactive oxygen species generation and caspases 3/7‐mediated apoptosis in KUP5 cells. In addition, the phagocytosis of MoS2‐Agg triggers an independent response pathway involving lysosomal damage, NLRP3 inflammasome activation, caspase‐1 activation, IL‐1β, and IL‐18 production. These findings demonstrate the importance of Mo release and the state of dispersion of MoS2 in impacting KC viability.

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Synthesis and characterizations of Zr(IV)-loaded orange waste for effective sequestration of Mo(VI) and W(VI) from water

Paudyal

Pangeni

Inoue

et al. 2022

J Mater Cycles Waste Manag

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Interaction of Molybdenum(VI) Oxyanions with +2 Metal Cations

Cited by 20 publications

References 23 publications

Using Chemical Modeling to Asses Water Quality in the Raigón Aquifer System in Southern Uruguay

Using Chemical Modeling to Asses Water Quality in the Raigón Aquifer System in Southern Uruguay

Dissolution of 2D Molybdenum Disulfide Generates Differential Toxicity among Liver Cell Types Compared to Non‐Toxic 2D Boron Nitride Effects

Synthesis and characterizations of Zr(IV)-loaded orange waste for effective sequestration of Mo(VI) and W(VI) from water

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