Zhao, Pihong’s team published research in Environmental Science & Technology in 50 | CAS: 4551-69-3

Environmental Science & Technology published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C6H17NO3Si, Name: 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one.

Zhao, Pihong published the artcilePlutonium(IV) and (V) Sorption to Goethite at Sub-Femtomolar to Micromolar Concentrations: Redox Transformations and Surface Precipitation, Name: 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, the publication is Environmental Science & Technology (2016), 50(13), 6948-6956, database is CAplus and MEDLINE.

Pu(IV) and Pu(V) sorption to goethite was investigated over a concentration range of 10-15-10-5 M at pH 8. Experiments with initial Pu concentrations of 10-15 – 10-8 M produced linear Pu sorption isotherms, demonstrating that Pu sorption to goethite is not concentration-dependent across this concentration range. Equivalent Pu(IV) and Pu(V) sorption Kd values obtained at 1 and 2-wk sampling time points indicated that Pu(V) is rapidly reduced to Pu(IV) on the goethite surface. Further, it suggested that Pu surface redox transformations are sufficiently rapid to achieve an equilibrium state within 1 wk, regardless of the initial Pu oxidation state. At initial concentrations >10-8 M, both Pu oxidation states exhibited deviations from linear sorption behavior and less Pu was adsorbed than at lower concentrations NanoSIMS and HRTEM anal. of samples with initial Pu concentrations of 10-8 – 10-6 M indicated that Pu surface and/or bulk precipitation was likely responsible for this deviation. In 10-6 M Pu(IV) and Pu(V) samples, HRTEM anal. showed the formation of a body centered cubic (bcc) Pu4O7 structure on the goethite surface, confirming that reduction of Pu(V) had occurred on the mineral surface and that epitaxial distortion previously observed for Pu(IV) sorption occurs with Pu(V) as well.

Environmental Science & Technology published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C6H17NO3Si, Name: 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics