Extraction of chlororuthenium(III) complexes by triazole derivatives from hydrochloric acid solutions

Afzaletdinova, N. G.; Ryamova, L. M.; Murinov, Yu. I.

doi:10.1134/s0036023607050269

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…Chemistry of Ru(III) species in chloride solutions is complex. However, the literature data (Afzaletdinova et al 2007 ; Orysyk et al 2010 ) show that at Cl − concentration below 6 M, apart from [Ru(H 2 O)Cl 5 ] 2− , the solution contains also [Ru(H 2 O) 2 Cl 4 ] − . Moreover, some amounts of [Ru(H 2 O) 3 Cl 3 ], cis - and trans -[Ru(H 2 O) 4 Cl 2 ] + , and [Ru(H 2 O) 5 Cl] 2+ ions can be present.…”

Section: Resultsmentioning

confidence: 99%

Phosphonium ionic liquids as extractants for recovery of ruthenium(III) from acidic aqueous solutions

et al. 2016

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The aim of this work is to investigate extraction of ruthenium(III) from acidic aqueous solutions with phosphonium ionic liquids such as trihexyl(tetradecyl)phosphonium chloride (Cyphos IL 101), trihexyl(tetradecyl)phosphonium bis(2,4,4-trimethylpentyl)phosphinate (Cyphos IL 104) and tributyl(tetradecyl)phosphonium chloride (Cyphos IL 167) as extractants. The influence of HCl content in the feed solutions on extraction of Ru(III) was investigated. The research was performed for model solutions containing Ru(III) and a mixture of waste solutions containing Ru(III) and Rh(III). In addition, investigation of the type of extractant and its concentration in the organic phase on extraction of Ru(III) was carried out. Co-extraction of protons to the organic phase was determined. To the best of our knowledge, the extraction of Ru(III) with Cyphos IL 167 (tributyl(tetradecyl)phosphonium chloride) as an extractant has not yet been described in the scientific literature.

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Section: Resultsmentioning

confidence: 99%

Phosphonium ionic liquids as extractants for recovery of ruthenium(III) from acidic aqueous solutions

et al. 2016

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“…Propiconazole (1-[[2-(2,4-dichlorophenyl)-4-propyl-1,3-dioxolan-2-yl]methyl]-1H-1,2,4-triazole) belongs to the triazole group of fungicides that block the biosynthesis of ergosterol in fungal cell membranes by inhibiting lanosterol 14α-demethylase, a cytochrome P450 enzyme. This fungicide is widely used in agriculture to protect cereals against pathogens [12], and its toxicity for mammals is generally regarded as low [13]. However, higher doses of propiconazole can decrease the synthesis of CYP51 protein (lanosterol 14α-demethylase) in both fungi and animals, which inhibits the synthesis of ergosterol and cholesterol [14,15].…”

Section: Streptomyces Albogiseolus and Brevibacillus Borstelensis Minmentioning

confidence: 99%

Wheat phyllosphere yeasts degrade propiconazole

Kucharska

Wachowska

Czaplicki

2019

Preprint

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Background: Yeasts, which are ubiquitous in agroecosystems, are known to degrade various xenobiotics. The aim of this study was to analyze the effect of fungicides on the abundance of natural yeast communities colonizing winter wheat leaves, to evaluate the sensitivity of yeast isolates to fungicides in vivo, and to select yeasts that degrade propiconazole. Results: Fungicides applied during the growing season generally did not affect the counts of endophytic yeasts colonizing wheat leaves. Propiconazole and a commercial mixture of flusilazole and carbendazim decreased the counts of epiphytic yeasts, but the size of the yeast community was restored after 10 days. Epoxiconazole and a commercial mixture of fluoxastrobin and prothioconazole clearly stimulated epiphyte growth. The predominant species isolated from leaves were Aureobasidium pullulans and Rhodotorula glutinis. In the disk diffusion test, 14 out of 75 yeast isolates were not sensitive to any of the tested fungicides. After 48 hours of incubation in an aqueous solution of propiconazole, the Rhodotorula glutinis Rg 55 isolate degraded the fungicide in 85%. Isolates Rh. glutinis Rg 92 and Rg 55 minimized the phytotoxic effects of propiconazole under greenhouse conditions. The first isolate contributed to an increase in the dry matter content of wheat seedlings, whereas the other reduced the severity of chlorosis. Conclusion: Not sensitivity of many yeast colonizing wheat leaves on the fungicides and the potential of isolate Rhodotorula glutinis Rg 55 to degrade of propiconazole was established. Yeast may partially eliminate the ecologically negative effect of fungicides. Keywords: wheat leaves, fungicide, Aureobasidium, Rhodotorula.

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“…Propiconazole (1-[[2-(2,4-dichlorophenyl)-4-propyl-1, 3-dioxolan-2-yl]methyl]-1H-1,2,4-triazole) belongs to the triazole group of fungicides that block the biosynthesis of ergosterol in fungal cell membranes by inhibiting lanosterol 14α-demethylase, a cytochrome P450 enzyme. This fungicide is widely used in agriculture to protect cereals against pathogens [23], and its toxicity for mammals is generally regarded as low [24]. However, higher doses of propiconazole can decrease the synthesis of CYP51 protein (lanosterol 14α-demethylase) in both fungi and animals, which inhibits the synthesis of ergosterol and cholesterol [25,26].…”

Section: Introductionmentioning

confidence: 99%

Wheat phyllosphere yeasts degrade propiconazole

2020

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Background: Yeasts, which are ubiquitous in agroecosystems, are known to degrade various xenobiotics. The aim of this study was to analyze the effect of fungicides on the abundance of natural yeast communities colonizing winter wheat leaves, to evaluate the sensitivity of yeast isolates to fungicides in vivo, and to select yeasts that degrade propiconazole. Results: Fungicides applied during the growing season generally did not affect the counts of endophytic yeasts colonizing wheat leaves. Propiconazole and a commercial mixture of flusilazole and carbendazim decreased the counts of epiphytic yeasts, but the size of the yeast community was restored after 10 days. Epoxiconazole and a commercial mixture of fluoxastrobin and prothioconazole clearly stimulated epiphyte growth. The predominant species isolated from leaves were Aureobasidium pullulans and Rhodotorula glutinis. In the disk diffusion test, 14 out of 75 yeast isolates were not sensitive to any of the tested fungicides. After 48 h of incubation in an aqueous solution of propiconazole, the Rhodotorula glutinis Rg 55 isolate degraded the fungicide in 75%. Isolates Rh. glutinis Rg 92 and Rg 55 minimized the phytotoxic effects of propiconazole under greenhouse conditions. The first isolate contributed to an increase in the dry matter content of wheat seedlings, whereas the other reduced the severity of chlorosis. Conclusion: Not sensitivity of many yeast colonizing wheat leaves on the fungicides and the potential of isolate Rhodotorula glutinis Rg 55 to degrade of propiconazole was established. Yeast may partially eliminate the ecologically negative effect of fungicides.

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Extraction of chlororuthenium(III) complexes by triazole derivatives from hydrochloric acid solutions

Cited by 7 publications

References 6 publications

Phosphonium ionic liquids as extractants for recovery of ruthenium(III) from acidic aqueous solutions

Phosphonium ionic liquids as extractants for recovery of ruthenium(III) from acidic aqueous solutions

Wheat phyllosphere yeasts degrade propiconazole

Wheat phyllosphere yeasts degrade propiconazole

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