Acid-Base Titrations in Nonaqueous Solvents

Riddick, John A.

doi:10.1021/ac60061a009

Cited by 42 publications

(11 citation statements)

References 191 publications

(79 reference statements)

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“…Figure S3). [29][30][31][32] The particular titration curve with a dramatic initial potential decrease and then an increase proves the in situ exfoliation behavior. This in situ exfoliation of HNb 3 O 8 may sufficiently expose the acid sites between the sheets (cf.…”

Section: Resultsmentioning

confidence: 98%

Catalytic Dehydration of Carbohydrates on In Situ Exfoliatable Layered Niobic Acid in an Aqueous System under Microwave Irradiation

Yan

Zhang

et al. 2013

ChemSusChem

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A simple and efficient microwave-assisted HNb(3)O(8) catalytic process is proposed for the dehydration of carbohydrates in the aqueous phase. A 5-hydroxymethylfurfural (HMF) yield of 55.9 % was achieved at a high substrate/catalyst weight ratio of 50 from a 10 wt % fructose solution, which is close to the yield achieved by homogeneous aqueous systems. The critical factor for this performance is the fast in situ exfoliation of layered HNb(3)O(8) with the aid of microwave irradiation, which leads to quasi-homogeneous catalytic behavior. Importantly, the catalytic system is also applicable for the one-pot production of HMF from di- and polysaccharides, such as inulin, through a consecutive hydrolysis-dehydration reaction. Additionally, the unique restacking feature of the exfoliated HNb(3)O(8) ensures the good reusability of the catalyst.

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Section: Resultsmentioning

confidence: 98%

Catalytic Dehydration of Carbohydrates on In Situ Exfoliatable Layered Niobic Acid in an Aqueous System under Microwave Irradiation

Yan

Zhang

et al. 2013

ChemSusChem

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“…No attempt is made to delve into the theoretical aspects, since these have been covered thoroughly in previous publications. An excellent review and bibliography of the theoretical considerations can be found in Riddick's paper, "Acid-Base Titrations in Nonaqueous Solvents" (71…”

Section: Theorymentioning

confidence: 99%

Titration of Pharmaceuticals in Nonaqueous Solvents *

Pifer

Wollish

Schmall

1953

Journal of the American Pharmaceutical Association (Scientific

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“…Many of the new pharmaceu'ticals contain synthetic organic compounds which are not soluble in an aqueous medium and for these medicinals methods are being developed utilizing potentiometry in nonaqueous mediums. A number of surveys have appeared in the literature, covering various aspects of titrations in nonaqueous solutions, especially as applied to pharmaceuticals (1)(2)(3)(4).…”

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confidence: 99%