Results 11 to 20 of about 121,849 (305)

SBA-15 synthesis from sodium silicate prepared with sand and sodium hydroxide

open access: yesMaterials Research Express, 2020
In the industry, sodium carbonate is used to prepare sodium silicate; however, this process generates great volumes of CO _2 . In this work, sodium hydroxide has been proposed to prepare sodium silicate using natural sand. Two experimental variables were
A L Lázaro   +3 more
doaj   +1 more source

Structured sand-sodium-silicate mixtures gluing with sodium silicate solute

open access: yesTheory and practice of metallurgy, 2021
Purpose – method of gluing with pure silicon silicate solute (SSS) molds and cores made of structured sand-sodiumsilicate mixtures (SSSM) investigation, which solidification has been realized by microwave radiation, and engineering method for calculating the minimum admissible tensile strength of gluing joint for structured mixtures elaboration ...
Solonenko L   +3 more
openaire   +1 more source

Neutron diffraction and Raman studies of the incorporation of sulfate in silicate glasses [PDF]

open access: yes, 2020
The oxidation state, coordination and local environment of sulphur in alkali silicate (R2O-SiO2; R= Na, Li) and alkali-alkaline earth silicate (Na2O-MO-SiO2; M= Ca, Ba) glasses have been investigated using neutron diffraction and Raman spectroscopy ...
Barney, Emma   +3 more
core   +2 more sources

Permeability Characteristics of Sand Grouted with Glyoxal Blended Sodium Silicate

open access: yesHittite Journal of Science and Engineering, 2017
T he goal of this study was to investigate the permeability characteristics of glyoxal blended sodium silicate injected sand specimens with different relative densities and gradations.
Eyubhan Avci
doaj   +1 more source

Lime-Covered Soil Stabilization on the Surronding Area of a Lime-kiln (Torbat-Heydarieh) Using Sulfur and Sodium Silicate [PDF]

open access: yesپژوهش‌های آبخیزداری, 2021
Carbonates contaminate soil and water resources. The use of stabilizers is an effective method to improve soil characteristics. The single and interaction effects of two treatments consisting of sodium-silicate and sulfur at 0, 5, 10, and 15 g/m2 were ...
Masoume Nematollahi   +3 more
doaj   +1 more source

Application of Sodium Silicate Enhances Cucumber Resistance to Fusarium Wilt and Alters Soil Microbial Communities

open access: yesFrontiers in Plant Science, 2018
Exogenous silicates can enhance plant resistance to pathogens and change soil microbial communities. However, the relationship between changes in soil microbial communities and enhanced plant resistance remains unclear.
Xingang Zhou   +5 more
doaj   +1 more source

STUDIES ON THE AGING OF THE MINERAL WATERS (Ill) VARIATION OF SILICATE IN THEMINERAL WATERS [PDF]

open access: yes, 1953
When silicate content is determined by the colorimetric method, the silicate content in the mineral waters and sodium silcate solution decreases in addition of ammonium hydroxide and sodium carbonate respectively, and moreover after addition of aluminium
Sugihara, Takeshi
core   +1 more source

Automated precision alignment of optical components for hydroxide catalysis bonding [PDF]

open access: yes, 2018
We describe an interferometric system that can measure the alignment and separation of a polished face of a optical component and an adjacent polished surface.
Fitzsimons, Ewan D.   +4 more
core   +1 more source

Compatibility studies of N-A-S-H and C-A-S-H Gels in Alkali-Activated Geopolymer Mortar [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
The primary reaction products in the alkali-activated green tuff alumino-silicate geopolymer mortar are Natrium (sodium) Aluminum-Silicate Hydrate (N-A-S-H) and Calcium Aluminum-Silicate Hydrate (C-A-S-H) gels.
Parand Razeghi Tehrani   +3 more
doaj   +1 more source

Use of rice husk ash to produce alternative sodium silicate for geopolymerization reactions [PDF]

open access: yesCerâmica, 2021
This study investigated the feasibility of synthesizing sodium silicate from rice husk ash (RHA) and its application to produce geopolymers. Samples were prepared at different SiO2/Al2O3 molar ratios (3.0, 3.5, and 4.0) for both sodium silicates ...
J. S. Lima   +5 more
doaj   +1 more source

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