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Jun 07, 2012pH-sensitive strontium carbonate nanoparticles as new anticancer vehicles for controlled etoposide release Wen-Yu Qian,1,* Dong-Mei Sun,1,* Rong-Rong Zhu,1 Xi-Ling Du,1 Hui Liu,2 Shi-Long Wang11Shanghai Tenth People's Hospital, School of Life Science and Technology, Tongji University, Shanghai, PR China; 2Eastern Hepatobiliary Surgery Hospital, Second Military Medical

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5. PRODUCTION, IMPORT/EXPORT, USE, AND DISPOSAL

strontium carbonates, which are 98% strontium carbonate and 2% byproducts and impurities. The soda ash method produces technical grade strontium carbonates, containing at least 97% strontium carbonate. The black ash method is the preferred means of strontium carbonate production because it yields a higher-grade product (USGS 1998).

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Local Structure Analysis of Strontium Sorption to Hydrous

LOCAL STRUCTURE ANALYSIS OF STRONTIUM SORPTION TO HMO 409 (20) assessed strontium sorption to calcite and kaolinite using XANES and XAFS. They proposed that in their lower loadings ofstrontiumoncalcite,ionexchangeoccursonthesurfacewhere half of the environment is that of the calcite and the other is of

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Nano

The obtained strontium carbonate nanocrystals were further washed three times with absolute ethanol and pure water, respectively. 2.5. Characterization The morphology and lattice of strontium carbonate were observed using SEM (Zeiss, Germany) and TEM (Zeiss, Germany), respectively. The functional groups of strontium carbonate were examined

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DOLOMITIZATION OF LOWER CRETACEOUS PERITIDAL

from the southern Tethys carbonate platform from outcrops on the Haushi-Huqf High in central-east Oman. Mud-dominated peritidal carbonates rich in microbial mats are replaced by fine crystalline dolomite along at least 60 km in the lower 10 m of the JurfFormation.

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Strontium (Sr) and water

Strontium is usually immobile in the environment, because of rapid precipitation as strontium carbonate, or because it is applied in shells. The highest strontium concentrations are found in deserts and forest soils. Strontium naturally occurs as four separate stable

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Strong Neodymium Magnets

Ceramic magnets, or ferrite, are made of a sintered composite of powdered iron oxide and barium/strontium carbonate ceramic. Due to the low cost of the materials and manufacturing methods, inexpensive Ceramic magnets (or nonmagnetized ferromagnetic cores, for use in electronic component such as radio antennas, for example) of various shapes can be easily mass produced.

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Determination of Effects of Some Parameters On The

of both strontium and carbonate ions; the reverse was the case for barium carbonate precipitates. These patterns illustrate the nature of the precipitates and the interactions that occur between the precipitate particles and the mother liquor. Although, strontium ions are smaller in size than barium ions and also strontium carbonate less

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Strontium, Chemical Element

Celestine contains primarily strontium sulfate (SrSO 4 ), while strontianite contains mostly strontium carbonate (SrCO 3 ). Important world sources of strontium are Mexico, Spain, Turkey, and Iran. A small amount of strontium is also obtained from mines in California and Texas.

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Strontium Vanadate

The strontium atom has a radius of 215 pm and a Van der Waals radius of 249 pm. Strontium was discovered by William Cruickshank in 1787 and first isolated by Humphry Davy in 1808. In its elemental form, strontium is a soft, silvery white metallic solid that quickly turns yellow when exposed to air.

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LOCALIZATION OF CO, ANION RADICALS IN STRONTIUM

microcrystals differing in shape and size are formed. Prismatic aggregates [SO0 and 3000 nm, Fig. 2(A)] prevail in SrCO,-5, while isometric aggregates [up to 500 nm, Fig. 2(B)) are predominant in CO,-60. Figure 3 shows light and dark field images of some sufficiently thin crystals of strontium carbonate

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The Chemistry Behind Firework Colors

Luminescence. To produce luminescence, energy is absorbed by an electron of an atom or molecule, causing it to become excited, but unstable. The energy is supplied by the heat of the burning firework. When the electron returns to a lower energy state the energy is released in the form of a photon (light).

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How Are Magnets Formed?

Apr 24, 2017Ceramic, Flexible, and Shaped Magnets. Ceramic magnets are made from iron oxide and barium or strontium carbonate. They are shaped and baked like any other ceramic. Flexible and shaped magnets are made by mixing magnetized powder (like iron oxide powder) in with resin or plastic. The resin or plastic can then be molded as normal,

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Strontium For Bones: Strontium Citrate Clinical Trial

Mar 09, 2009Strontium is available in several forms, including citrate, lactate, carbonate, gluconate, and ranelate. The latter requires a prescription and is not available in the U.S. The other forms are available from health-food stores and on-line distributors. Strontium citrate is the most common form and is easily assimilable.

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Strontium Carbonate (SrCO3) powder

Inframat Advanced Materials specializes in the manufacturing, sourcing, and worldwide distribution of Strontium Carbonate.Our expertise in the fields of nano materials, advanced ceramics, rare earth chemicals, thermal spray powders, solid oxide fuel cell (SOFC) materials, catalysts, nano-magnetics, electroplating, and biotechnology allows us to supply our customers with Strontium Carbonate of

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Strontium Carbonate / Fine Powder / 3 Ounces / 99% Pure

Strontium Carbonate is commonly used in pyrotechnics to produce a bright red color. For other colorants, including Copper Nitrate, check out our other listings. STURDY PLASTIC BOTTLE: Our bottles are made of durable Polypropylene Plastic, which is a natural, translucent, lightweight, durable, and chemically resistant copolymer.

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Strontium 90

Strontium 90 definition is - a heavy radioactive isotope of strontium of mass number 90 that has a half-life of 29 years, that is present in nuclear waste and fallout, and that is hazardous because like calcium it can be assimilated in biological processes and deposited in the bones of human beings and animals.

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Leaving Bariumville: Replacing Barium Carbonate in Cone 10

Nov 17, 2009The study consisted of mixing each one of these glazes in three forms, and then comparing the fired results. The first was the original, the second used strontium carbonate in place of the barium carbonate, and the third used whiting. All tests were done on Glacia Cone 10 porcelain from Clay Planet in Santa Clara, California.

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Molecular weight of Strontium Carbonate

››More information on molar mass and molecular weight. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together.

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strontium carbonate

strontium. 0 references. carbon. 0 references. safety classification and labelling. Strontium carbonate (English) quote. CAS no.: 1633-05-2 (English) DSSTOX substance identifier. DTXSID3029651. 1 reference. stated in. Mapping file of InChIStrings, InChIKeys and DTXSIDs for the EPA CompTox Dashboard .

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Arthur MANELAS, et al. NanoMagnetic Power

The transition metal element doped ferrite or ferric oxide is used as the component of the micro-nano sheet; a bismuth doped ferrite micro-nano sheet is of normal square shape, the side length thereof is 0.26-1.85mu m, the thickness is 20-240nm and the percent of the bismuth doped atoms is 0-14.2%; and a barium or strontium doped ferric oxide micro-nano sheet is of circular shape, the diameter is 1.48mu

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Strontium Carbonate

Two strontium compounds, strontium carbonate (SrCO3) and strontium nitrate (Sr(NO3)2), burn with a bright, red flame ; Strontium-90, a radioactive isotope of strontium, is a common product of nuclear explosions. It has a half-life of about 28.8 years and decays into yttrium-90 through beta decay. Strontium-90 is especially deadly since it has a

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Chemistry of Fireworks

Strontium Carbonate 15 Parlon (chlorinated rubber) 15 Red Gum (fuel, binder) 9 Magnalium (50/50, -200 mesh) 6 (alloy of Mg and Al – hot fuel) 31 MK 124 Red Flare Emission Spectrum But remember: the human eye is not a digital spectrophotometer! What matters is what looks good to us.32

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Strontium chromate pigments and methods of preparing the

Likewise 295 pounds of a technical grade of strontium carbonate contains 274 pounds of pure strontium carbonate and 5.9 pounds of each of the other carbonates, namely barium and calcium, all of which are equivalent to 1.943 mols.

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Open Access Full Text Article pH

Abstract: Strontium carbonate nanoparticles (SCNs), a novel biodegradable nanosystem for the pH-sensitive release of anticancer drugs, were developed via a facile mixed solvent method aimed at creating smart drug delivery in acidic conditions, particularly in tumor environments.

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CHAPTER

crystallization of calcium and strontium carbonates 5.1 Introduction Nature uses organic molecules to control and direct the crystallisation of minerals. This control is exerted through the use of organic macromolecules that provide the sites of nucleation and dictate crystal orientation and

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EFFECT OF STRONTIUM ON CALCITE GROWTH RATES

EFFECT OF STRONTIUM ON CALCITE GROWTH RATES UNDER VARYING CALCIUM-TO-CARBONATE RATIOS and Atmospheric Sciences Georgia Institute of Technology May 2012 . EFFECT OF STRONTIUM ON CALCITE GROWTH RATES UNDER VARYING CALCIUM-TO-CARBONATE RATIOS FIGURE 3.8 Step velocities as a function of the strontium-to-carbonate

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Strontium Titanate: A diamond simulant with incredible fire

Strontium Titanate is a man-made material with a chemical composition of SrTiO 3. It grabbed public attention in the early 1950s as a diamond simulant - a material that has an appearance that is very much like diamond but has a different composition and/or crystal structure. When cut and polished

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Ferrite (magnet)

Iron oxide and barium or strontium carbonate are used in manufacturing of hard ferrite magnets. The high coercivity means the materials are very resistant to becoming demagnetized, an essential characteristic for a permanent magnet. They also have high magnetic permeability.

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Water Treatability Database

Naturally-occurring strontium is present in the earth's crust at an average concentration of 0.04%. In seawater, it is the tenth most abundant element [1764]. Strontium is used industrially as a lead scavenger and in steel production. Strontium carbonate is used in pyrotechnics. Strontium chloride is used in toothpaste.

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