نتایج جستجو برای: water glass solution

تعداد نتایج: 1041495  

Journal: :international journal of nano dimension 0
s. sadegh hassani catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran a. rashidi catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran m. adinehnia catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran n. montakhab catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran

this study is focused on synthesis of nano-colloidal silica via alkaline water glass solution. sodium ions of water glass were removed by cation exchanging in a resin column to obtain the silicic acid which was titrated to the solution of sodium silicate. concentration of the colloidal silica and ph value of the solutions were controlled using different concentrations of alkaline sodium silicat...

In this research, MgF2-2%SiO2/MgF2 thin films were applied on a glass substrate. At first, MgF2 thin films with the optical thickness were deposited on the glass slide substrates. Then, MgF2-2%SiO2 thin films were deposited on the glass coated with MgF2 thin films. Finally, the nanocomposite thin films were surface treated by the PFTS solution. Characterization of the thin film was done by X-Ra...

Journal: :The Biochemical journal 1963
S J BACH R A HAWKINS D SWAINE

L( + )-Arginine hydrochloride was obtained from the Sigma Chemical Co., St Louis, Mo., U.S.A. The Arlco jackbean meal used in the preparation of urease was supplied by Hopkin and Williams Ltd., Chadwell Heath, Essex. The 'manganese-maleate solution' used in the preparation of arginase was made by dissolving 8-9 g. of MnSO4,4H20 and 1-8 g. of disodium maleate in glassdistilled water and making t...

2008
WILLIAM W. MUSHIN

Two problems confront the spinal anaesthetist when he makes his injection :i. Which are the spinal nerve roots carrying the pain impulses from the operation area. This problem will not be further considered. It involves basic anatomical knowledge with which the anaesthetist must make himself familiar. 2. How is the local anaesthetic, deposited in the lumbar region, to be brought into contact wi...

2005
TEOFILO A. ABRAJANO JOHN K. BATES

MAP DE87 006975 Repository-oriented leaching experiments involving Savannah River Laboratory (SRL) 165 type glass under a 7-radiation field (1 * 0.2 x 104 R/h) have been performed by the Nevada Nuclear Waste Storage Investigations (NNWSI) project. In this communication, we discuss glass surface analyses obtained by SEM, nuclear resonance profiling, and SIMS together with leachate solution data ...

2017
Tongxu Yu Lishan Zhao Qiang Wang Zexian Cao

Glass transition behavior of ternary disaccharide-ethylene glycol-water solutions, in reference to that of the binary combinations, has been investigated towards a better understanding of their cryoprotective ability. In water-deficient solutions, the disaccharides, including trehalose, sucrose and maltose, can associate with more than 100 ethylene glycol molecules to form amorphous complex, on...

Journal: :Journal of the Mineralogical Society of Japan 1980

2006
Masashi Watanabe

We proposed and demonstrated a “refreshable microfluidic channel.” This channel was constructed between two stacked glass slides with a 100 m thick spacer. Each surface of the slides was frosted by being ground with an abrasive and made hydrophobic due to the treatment with 1,1,1,3,3,3-hexamethyldisilazane. A line was drawn on the surface using dimethyl sulfoxide (DMSO) as the ink. Because this...

ژورنال: مجله دندانپزشکی 2019

Background and aims: Solubility is an important property of luting cements in determining clinical durability. The aim of this study was to compare the solubility of Panavia, Calibra and Maxcem resin cements with that of GC Fuji PLUS resin modified glass ionomer cement in three different pH values. Materials and Methods: A total of 96 specimens were prepared (8mm diameter, 4mm thickness) accor...

2016
Qiang Wang Lishan Zhao Chenxi Li Zexian Cao

It is a challenging issue to quantitatively characterize how the solute and pressure affect the homogeneous ice nucleation in a supercooled solution. By measuring the glass transition behavior of solutions, a universal feature of water-content dependence of glass transition temperature is recognized, which can be used to quantify hydration water in solutions. The amount of free water can then b...

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