PURPOSE:To obtain a silica gel having a large pore volume, by gelatinizing a silica sol having a specific SiO2 concentration, heating in water at a specific pH, treating with an acidic aqueous solution, and drying at a low temperature. CONSTITUTION:Sodium silicate is made to react with ...
et al. Preparation of Silica-Containing Polyvinylpyrrolidone Films by Sol-Gel Process. Polym J 24, 689–692 (1992). https://doi.org/10.1295/polymj.24.689 Download citation Issue Date01 July 1992 DOIhttps://doi.org/10.1295/polymj.24.689 Keywords Polyvinylpyrrolidone Sol-Gel Process Silica ...
When preparing the silica particles it is necessary to ensure that the pore size and pore volume is controlled, as these parameters have a great impact on the usability of the silica gel, especially when the particles are used as chromatographic media. The pore structure is traditionally controlle...
Silica gel containing 71 wt.% 12-tungstogermanic acid was prepared by means of sol–gel method. Infrared (IR) spectrum and X-ray powder diffraction (XRD) pattern revealed that the Keggin structure characteristic of GeW 12O 40 4 anion was present in the silica gel skeleton. The change of ...
of silica gel. The early fractions eluted with 19:1 benzene:ether afforded 102 mg. of a yellow, oily material which was homogeneous on tlc analysis; ir: νmaxfilm 1740 (cyclopentanone C=O), 1660 (conjugated ketone C=O), 1575, 1600 (anisole), (no OH) cm-1 ; uv: λmaxEtOH 219...
英文名称:PLC Silica Gel 60 GF254,for preparation, 20*20cm glass support, 1.5mm coating, binder CMC-Na, 20pcs/box 英文同义词:PLC Silica Gel 60 GF254,for preparation, 20*20cm glass support, 1.5mm coating, binder CMC-Na, 20pcs/box ...
5) silica-alumina gel 硅铝凝胶 1. The results of experiment show that stable silica-alumina gel was formed by controlling the value of pH<3. 本文以铝胶和硅胶为原料,采用溶胶-凝胶方法进行了硅铝凝胶形成及晶化行为研究。 更多例句>> 6) Alumina-silica gel 铝硅凝胶...
Keywords: flexible silicon aerogel; adsorption separation research; sol-gel method; oil/water separation test; recyclability Citation: Li, L.; Xu, T.; Zhang, F.; Du, C.; He, S. Preparation of Super-Flexible Silica Aerogel and Its Application in Oil–Water Separation. Gels 2023, 9, 739....
Preparation of odorless naphthas using silica gel 来自 掌桥科研 喜欢 0 阅读量: 21 公开/公告号: US2897145 A 公开/公告日期: 07/28/1959 发明人:GW Ayers,WJ Sandner 收藏 引用 批量引用 报错 分享 全部来源 求助全文 掌桥科研 FreePatentsOnline Google Patents ...
Product Name:TLC Silica Gel 60 GF254, for preparation, 20*20cm glass support, 0.5mm coating, binder CMC-Na, 20pcs/box Synonyms:TLC Silica Gel 60 GF254, for preparation, 20*20cm glass support, 0.5mm coating, binder CMC-Na, 20pcs/box ...