Aqueous chlorination of levofloxacin: Kinetic and mechanistic study, transformation product identification and toxicity

In the Fe-Ni system, although ordered FeNi and ordered Ni3Fe are experimentally well established, direct evidence for ordered Fe3Ni is unconvincing. Little experimental data for Fe3Ni exists because diffusion is sluggish at temperatures below 400°C and because alloys containing less than 29 wt% Ni undergo a martensitic transformation at room temperature. Fe-Ni phases in iron meteorites were examined in this study because iron meteorites have cooled at slow rates of about 10°C/106 years, allowing phase transformations below 400°C to occur. One low temperature transformation product, called clear taenite 2 (CT2), was of particular interest because it contains less than 30 wtZ Ni and is not martensitic. Because CT2 is only a few microns in size, the structure and Ni content were determined through electron diffraction and x-ray microanalysis. A Philips EM400T operated at 120 kV, equipped with a Tracor Northern 2000 multichannel analyzer, was used.

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Mechanistic study of proliferation induced by Angelica sinensis in gastric epithelial cells

Gastroenterology ◽

10.1016/s0016-5085(01)80716-2 ◽

2001 ◽

Vol 120 (5) ◽

pp. A145-A145

Author(s):

C CHO ◽

Y YE ◽

E LIU ◽

V SHIN ◽

N SHAM

Keyword(s):

Epithelial Cells ◽

Mechanistic Study ◽

Angelica Sinensis ◽

Gastric Epithelial Cells

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Mechanistic study on the cardioprotective and chemosensitizing effects of a novel danshensu derivative

Planta Medica ◽

10.1055/s-0034-1394728 ◽

2014 ◽

Vol 80 (16) ◽

Author(s):

L Wang ◽

L Shan ◽

G Cui ◽

Y Chen ◽

J li ◽

...

Keyword(s):

Mechanistic Study

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Oxidation of Some Unsaturated Acids by Imidazolium Dichromate: A Kinetics and Mechanistic Study

Journal of Chemical Biological and Physical Sciences ◽

10.24214/jcbps.a.7.3.61425 ◽

2017 ◽

Vol 7 (3) ◽

Keyword(s):

Mechanistic Study

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Mechanistic Study and Development of Catalytic Reactions of Sm(II)

10.26434/chemrxiv.7355069 ◽

2018 ◽

Author(s):

Sandepan Maity ◽

Robert Flowers

Keyword(s):

Molecular Weight ◽

High Molecular Weight ◽

Proton Donor ◽

Catalytic Reactions ◽

Mechanistic Study ◽

Mechanistic Studies ◽

Cyclization Reactions ◽

Mechanistic Approach ◽

Donor Source

Despite the broad utility and application of SmI2in synthesis, the reagent is used in stoichiometric amounts and has a high molecular weight, resulting in a large amount of material being used for reactions requiring one or more equivalents of electrons. We report mechanistic studies on catalytic reactions of Sm(II) employing a terminal magnesium reductant and trimethyl silyl chloride in concert with a non-coordinating proton donor source. Reactions using this approach permitted reductions with as little as 1 mol% Sm. The mechanistic approach enabled catalysis employing HMPA as a ligand, facilitating the development of catalytic Sm(II) 5-exo-trig ketyl olefin cyclization reactions.

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Activated carbon from molasses efficiency for Cr(VI), Pb(II) and Cu(II) adsorption: A mechanistic study

10.31221/osf.io/ecpm3 ◽

2019 ◽

Author(s):

Chem Int

Keyword(s):

Activated Carbon ◽

Phosphoric Acid ◽

Sugar Industry ◽

Chemical Activation ◽

High Surface ◽

High Surface Area ◽

Mechanistic Study ◽

Acid Mixture ◽

Maximum Adsorption Capacity ◽

Good Potential

Activated carbon was prepared from molasses, which are natural precursors of vegetable origin resulting from the sugar industry. A simple elaboration process, based on chemical activation with phosphoric acid, was proposed. The final product, prepared by activation of molasses/phosphoric acid mixture in air at 500°C, presented high surface area (more than 1400 m2/g) and important maximum adsorption capacity for methylene blue (625 mg/g) and iodine (1660 mg/g). The activated carbon (MP2(500)) showed a good potential for the adsorption of Cr(VI), Cu(II) and Pb(II) from aqueous solutions. The affinity for the three ions was observed in the following order Cu2+ Cr6+ Pb2+. The process is governed by monolayer adsorption following the Langmuir model, with a correlation coefficient close to unity.

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