A method of producing a silica gel by hydrolyzing a silicon alkoxide and subjecting the resulting hydrogel to a hydrothermal treatment substantially without aging it is described. Also described in a silica gel produced by such a method and a silica gel which has the following characteristics收藏...
CAS No 112926-00-8, Silica Gel for Drying and Moistureproof Melting point 1610°C Boiling point 2230ºC density 2.6 Fp 23°C storage temp. 2-8°C form powder or granules Specific Gravity 0.88g/ml color blue PH ~6.8 (10% in aq. suspension) Odor Odorless Det...
Silica gel is an amorphous form of silica (SiO2·xH2O). From:Developing Solid Oral Dosage Forms,2009 Also in subject areas: Earth and Planetary Sciences Materials Science Medicine and Dentistry Discover other topics Chapters and Articles You might find these chapters and articles relevant to this ...
3.1.1 Silica gel matrix Porous silica gel is a type of amorphous synthetic silica. It is widely used as a desiccant, due to large sorption rate, and low regeneration temperature (150 °C). The hydroxyls (silanol groups or α(OH)) on the surface determine its surface physical/chemical pro...
caused by the presence of long octadecylsilane Characterization of Superhydrophobic properties. The wetting ability of surfaces coated with func- tionalised silica nanoparticles can be visualised by using highly polar substrates such as filter paper or silica-gel TLC plate (Fig. 5). The ...
MacKenzie KJD, Smith ME (2002) Multinuclear solid state NMR of inorganic materials. Pergamon Press, Oxford Google Scholar Sepulveda P, Jones JR, Hench LL (2002) Bioactive sol–gel foams for tissue repair. J Biomed Mater Res 59(2):340–348 Article Google Scholar Jones JR, Ehrenfried LM,...
Silica sol-gel for the controlled release of antibiotics. II. The effect of synthesis parameters on the in vitro release kinetics of vanomycin. J Biomed Mater Res. 2001;57(3): 321–326. 29. Radin S, Ducheyne P, Kamplain T, Tan BH. Silica sol-gel for the con- trolled release ...
The drug delivery system consisted of three major components: Silybin, hydrophilic gel matrix and PSNs. They also focused on the in vitro dissolution kinetics of drug-loaded PSNs and performed correlations between in vitro and in vivo absorption of the formulations in beagle dogs. Zhang et al....
Silica gel without TEOS—water as pore liquid 1.00 54.3 Adapted from Ref. 26. When the liquid phase dispersed within the gel structure is water, removal of the solvent by drying/evaporation results in large capillary forces being exerted on the remaining silica structure pore walls. As a result...
Features: Silica gel micro crystals designed with microscopic channels contain odor and help moisture evaporate; low-dust formula allows use in small spaces; soft texture offers your cat a pleasing tactile experience; formulated without fragrance; can be used with clay or scoopable litters; idea...