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C(O)[C@@H]([C@H]([C@@H](CO)O)O)[OH:3].[OH2:11].O.O.O.O.O.[Cl-].[Cr+3:18].[Cl-].[Cl-].[OH-].[Na+].[CH2:23]([OH:32])[C@@H:24]([C@H:26]([C@@H:28]([CH2:30][OH:31])[OH:29])[OH:27])[OH:25].[Cr]>O>[OH-:3].[CH2:23]([OH:32])[C@@H:24]([C@H:26]([C@@H:28]([CH2:30][OH:31])[OH:29])[OH:27])[OH:25].[Cr+3:18].[OH-:11].[OH-:3]참가 물질
실험 절차
600 g of xylitol and 140 g of chromium (III) chloride hexahydrate were dissolved in 1200 g of water at 85° C. with stirring to produce a solution. The pH of the solution was raised to about 9 by adding rapidly in one portion a suitable amount of an aqueous solution containing 20 wt % of sodium hydroxide. Within 20 minutes a blue transparent solution having a strong laser scattering characteristic was then obtained. This strong laser scattering property indicated formation of chromium xylitol nanoclusters. The nanoclusters were isolated from the solvent and free ions through cross-flow membrane filtration using a membrane with a molecular weight cut-off at 3500 Dalton. The isolated nanoclusters were further dried in an oven at 80° C. to form a dark red solid, which was further ground into a free flow powder. Atomic absorption spectroscopy of the thus-obtained nanoclusters indicated that the nanoclusters had a chromium content of 8.09 wt. %.
후처리
- customto produce a solution
- temperatureThe pH of the solution was raised to about 9
- additionby adding rapidly in one portion a suitable amount of an aqueous solution
- customa strong laser scattering characteristic was then obtained
- customThe nanoclusters were isolated from the solvent and free ions through cross-flow membrane filtration
- customThe isolated nanoclusters were further dried in an oven at 80° C.
- customto form a dark red solid, which
- customAtomic absorption spectroscopy of the thus-obtained nanoclusters
출처 및 근거
- ORD 기록
- ord-c60bd6482f984622bc7693c9ce42a18f
- 출처 데이터셋
- uspto-grants-2016_06
- 특허 번호
- US09375449B2
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