The surface evaluated for each substrate were: 16 380 [cm.sup.2] for plastic mesh, 874.8 [cm.sup.2] for wood and 17 550 [cm.sup.2] for fabric, and they were arranged as curtains pending from a wood stick into aquariums with 45 L of marine filtered water, fertilized with F/2 sterile medium, with a concentration of 106 [micro]M of sodium metasilicate
[Na.sub.2]Si[O.sub.3] (Guillard & Ryther, 1962).
Homeopathic treatment T3 (AcF 1D + MsS 1D) was developed from sodium metasilicate
and phosphoric acid mother tinctures.
Chemicals used in the preparation of MCM-41 mesoporous silica and migration test were obtained from Sinopharm Chemical Reagent Co., Ltd (Shanghai, China), including analytical grade sodium metasilicate
nonahydrate, hexadecyl trimethyl ammonium bromide (CTMABr), sulfuric acid, absolute ethanol and high performance liquid chromatographic grade methanol.95% Ethanol chosen as fatty food simulant was prepared by dilution of absolute ethanol in ultrapure water which was obtained from Aquaplore ultra-pure water system provided by Shanghai Ultrapure Instrument Co., Ltd (Shanghai, China).
But presinterised zirconia-reinforced glass ceramic ZLS contain lithium metasilicate
Wu et al., "Enhanced electrochemical performance of Li[Ni.sub.0.6][Co.sub.0.2][Mn.sub.0.2][O.sub.2] cathode at high cutoff voltage by modifying electrode/electrolyte interface with lithium metasilicate
," Electrochimica Acta, vol.
Rungrojchaiporn, "Highly porous silica network prepared from sodium metasilicate
," Journal of the Minerals: Metals and Materials, vol.
The algae used in broodstock conditioning were cultured in exterior 1-[m.sup.3] tanks using Fitobloom medium (Agripac SA, Ecuador) with 2 g of sodium phosphate/[m.sup.3], and metasilicate
traces for diatom species at 26[degrees]C-28[degrees]C, salinity of 34, constant aeration, and natural light; in the subsequent experiments, the algae were cultivated under controlled conditions using 50-L carboys, with f/2 medium), at 20[degrees]C, with permanent fluorescent light (3,500-5,000 1x) and constant aeration.
The phase of steatite is crystalline which belongs to magnesium metasilicate
from talc mineral based on the following reaction :
In case of CAD/CAM, this material is presented as blocks of lithium metasilicate
in a precrystallized state which contains cores of lithium metasilicate
and disilicate, reducing its flexural strength to 130 [+ or -] 30 Mpa.
The topcoat is comprised of the cured or fused product of a coating powder of one or more resin component of one or more toughened epoxy resin, from 0.1 to 5 parts per hundred parts resin (phr) of one or more wax and from 75 phr to 200 phr of one or more extenders wherein the one or more extenders is selected from the group consisting of barium sulfate, titanium dioxide, iron oxides, crystalline silica (quartz), calcium metasilicate
, soda lime glass spheres, magnesium silicate, nepheline syenite, muscovite mica, diatomaceous earth, kaolin clay and calcium carbonate.
Literature survey reveals that no work has so far been reported on the synthesis and characterization of these crystals in sodium metasilicate
gel at room temperature.