Kinetics and mechanism of the decay of methyl cellulose-manganate(VI) polysaccharide transient species–novel spectrophotometric kinetic trace of methyl cellulose hypomangate(V) gel intermediate polysaccharide

Ali M. Shaker; Rafat M. El-Khatib; Hossnia S. Mahran

doi:10.1002/app.26907

Kinetics and mechanism of the decay of methyl cellulose-manganate(VI) polysaccharide transient species–novel spectrophotometric kinetic trace of methyl cellulose hypomangate(V) gel intermediate polysaccharide

Journal of Applied Polymer Science ◽

10.1002/app.26907 ◽

2007 ◽

Vol 106 (4) ◽

pp. 2668-2674 ◽

Cited By ~ 12

Author(s):

Ali M. Shaker ◽

Rafat M. El-Khatib ◽

Hossnia S. Mahran

Keyword(s):

Methyl Cellulose ◽

Kinetics And Mechanism ◽

Transient Species ◽

Kinetic Trace

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New coordination polymers. III: Oxidation of poly(vinyl alcohol) by permanganate ion in alkaline solutions. Kinetics and mechanism of formation of intermediate complex with a spectrophotometric detection of manganate(vi) transient species

Polymer International ◽

10.1002/pi.4990300103 ◽

1993 ◽

Vol 30 (1) ◽

pp. 5-9 ◽

Cited By ~ 55

Author(s):

Refat M. Hassan

Keyword(s):

Coordination Polymers ◽

Vinyl Alcohol ◽

Kinetics And Mechanism ◽

Intermediate Complex ◽

Alkaline Solutions ◽

Poly Vinyl Alcohol ◽

Transient Species ◽

Mechanism Of Formation ◽

Spectrophotometric Detection ◽

Permanganate Ion

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Orientation on Electron-Transfer Nature for Oxidation of Some Water-Soluble Carbohydrates: Kinetics and Mechanism of Hexacholroiridate (IV) Oxidation of Methyl Cellulose in Aqueous Perchlorate Solutions

Trends Journal of Sciences Research ◽

10.31586/chemistry.0402.04 ◽

2019 ◽

Vol 4 (2) ◽

pp. 68-79

Author(s):

Refat Hassan ◽

Samia Ibrahim

Keyword(s):

Electron Transfer ◽

Methyl Cellulose ◽

Kinetics And Mechanism ◽

Water Soluble ◽

Soluble Carbohydrates ◽

Water Soluble Carbohydrates

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Oxidation of Some Macromolecules. Kinetics and Mechanism of Oxidation of Methyl Cellulose Polysaccharide by Permanganate Ion in Acid Perchlorate Solutions

Industrial & Engineering Chemistry Research ◽

10.1021/ie200646p ◽

2012 ◽

Vol 51 (15) ◽

pp. 5424-5432 ◽

Cited By ~ 21

Author(s):

Refat Hassan ◽

Abdel Rahman Dahy ◽

Samia Ibrahim ◽

Ishaq Zaafarany ◽

Ahmed Fawzy

Keyword(s):

Methyl Cellulose ◽

Kinetics And Mechanism ◽

Mechanism Of Oxidation ◽

Permanganate Ion

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Base-catalyzed oxidation: Kinetics and mechanism of hexacyanoferrate (III) oxidation of methyl cellulose polysaccharide in alkaline solutions

Journal of Molecular Catalysis A Chemical ◽

10.1016/j.molcata.2011.05.006 ◽

2011 ◽

Author(s):

R.M. Hassan ◽

S.M. Ibrahim ◽

I.A. Zaafarany ◽

A. Fawzy ◽

H.D. Takagi

Keyword(s):

Oxidation Kinetics ◽

Methyl Cellulose ◽

Kinetics And Mechanism ◽

Alkaline Solutions ◽

Catalyzed Oxidation

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Alginate polyelectrolyte ionotropic gels. XIV. Kinetics and mechanism of formation of intermediate complex during the oxidation of alginate polysaccharide by alkaline permanganate with a spectrophotometric evidence of manganate(VI) transient species

Journal of Polymer Science Part A Polymer Chemistry ◽

10.1002/pola.1993.080310106 ◽

1993 ◽

Vol 31 (1) ◽

pp. 51-59 ◽

Cited By ~ 36

Author(s):

Refat M. Hassan

Keyword(s):

Kinetics And Mechanism ◽

Intermediate Complex ◽

Transient Species ◽

Mechanism Of Formation ◽

Alkaline Permanganate

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Hepatocyte Alterations in Guinea Pigs FED Polychlorinated Biphenyls (PCBs), Dibenzodioxins (PCDD), AND DIBENZOFURANS (PCDF)

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100053085 ◽

1982 ◽

Vol 40 ◽

pp. 56-57

Author(s):

J. N. Turner ◽

D. N. Collins

Keyword(s):

Guinea Pigs ◽

Room Temperature ◽

Dose Group ◽

Methyl Cellulose ◽

Uranyl Acetate ◽

Target Organ ◽

Office Building ◽

Lead Citrate ◽

Control Groups ◽

Cooling Fluid

A fire involving an electric service transformer and its cooling fluid, a mixture of PCBs and chlorinated benzenes, contaminated an office building with a fine soot. Chemical analysis showed PCDDs and PCDFs including the highly toxic tetra isomers. Guinea pigs were chosen as an experimental animal to test the soot's toxicity because of their sensitivity to these compounds, and the liver was examined because it is a target organ. The soot was suspended in 0.75% methyl cellulose and administered in a single dose by gavage at levels of 1,10,100, and 500mgm soot/kgm body weight. Each dose group was composed of 6 males and 6 females. Control groups included 12 (6 male, 6 female) animals fed activated carbon in methyl cellulose, 6 males fed methyl cellulose, and 16 males and 10 females untreated. The guinea pigs were sacrificed at 42 days by suffocation in CO2. Liver samples were immediately immersed and minced in 2% gluteraldehyde in cacadylate buffer at pH 7.4 and 4°C. After overnight fixation, samples were postfixed in 1% OsO4 in cacodylate for 1 hr at room temperature, embedded in epon, sectioned and stained with uranyl acetate and lead citrate.

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