Results 271 to 280 of about 134,677 (321)

Mitigation of Self-p-Doping and Off-Centering Effect in Tin Perovskite via Strontium Doping. [PDF]

open access: yesACS Energy Lett
Frasca C   +10 more
europepmc   +1 more source

The thermodynamics of strontium

Transactions of the Faraday Society, 1946
1. Measurements of heats of solution of strontium carbonate in hydrochloric acid were carried out which make it possible to determine the heats of reaction: SrO(s)+CO2(g)=SrCO3(s) ΔH 298=-290,887 cal. Sr(s)+C(gr)+3/2O 2(g)=SrCO3(s) ΔH298=-56,057 cal. Sr(s)+2H+=Sr+++H2(g) ΔH 298=-130,214 cal. and the entropy of the aqueous strontium ion.
Kapustinsky A., Dezideryeva I.
openaire   +4 more sources

Formation of strontium ozonide and strontium hyperoxide in reaction of ozone with strontium peroxide

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1973
The reaction of a solution of ozone in Freon 12 with a suspension of strontium peroxide in the same medium at a negative temperature gives a mixture of the ozonide Sr(O3)2 and the hyperoxide Sr(O2)2. The ozonide is not formed above −70°, and the hyperoxide is not formed above −20°.
G. P. Pilipenko   +4 more
openaire   +2 more sources

The determination of strontium-90 and strontium-89 in water without separation of strontium from calcium

The Analyst, 1976
A method has been developed for measuring strontium-90 and strontium-89 activities in water without separating the strontium from calcium. After evaporation of the sample to a convenient volume, the strontium plus calcium is purified radiochemically and an aqueous solution of their chlorides counted in a liquid scintillation spectrometer, which records
J. F. C. Tyler, J. G. T. Regan
openaire   +3 more sources

Strontium diibuprofenate dihydrate, strontium malonate sesquihydrate, strontium diascorbate dihydrate and strontium 2-oxidobenzoate hydrate at 120 K

Acta Crystallographica Section C Crystal Structure Communications, 2006
Four strontium(II) salts with organic acids have been studied. Poly[diaquadi-μ-ibuprofenato-strontium(II)] or poly­[diaqua­bis[μ-2-(4-isobutyl­phen­yl)­propionato]­strontium(II)], [Sr(C13H17O2)2(H2O)2]n, crystallizes with eight-coordinated Sr atoms. The coordination polyhedra are inter­connected by edge-sharing to form chains.
Jens Enevold Thaulov Andersen   +2 more
openaire   +3 more sources

Strontium

2011
Abstract: Strontium (Sr) is one of the alkaline earth metals, with properties resembling calcium (Ca). Strontium is not classified as essential for human or other organisms, and environmental Sr is considered hazardous to organisms because of radiological hazards associated with its radionuclides.
Chowdhury, M. Jasim, Blust, Ronny
openaire   +2 more sources

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