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460346

Sigma-Aldrich

Estroncio

dendritic pieces, purified by distillation, 99.9% trace metals basis

Sinónimos:

Strontium element

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About This Item

Fórmula empírica (notación de Hill):
Sr
Número de CAS:
7440-24-6
Peso molecular:
87.62
EC Number:
231-133-4
MDL number:
MFCD00134060
UNSPSC Code:
12141504
PubChem Substance ID:
24869682
NACRES:
NA.23

assay

99.9% trace metals basis

form

dendritic pieces

purified by

distillation

reaction suitability

reagent type: reductant

resistivity

23 μΩ-cm, 20°C

bp

1384 °C (lit.)

mp

757 °C (lit.)

density

2.6 g/mL at 25 °C (lit.)

SMILES string

[Sr]

InChI

1S/Sr

InChI key

CIOAGBVUUVVLOB-UHFFFAOYSA-N

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General description

Dendritic strontium is a form of strontium metal that has a unique, tree-like or branching morphology. It is often made by electrodeposition. Dendritic strontium is a silvery-white metal that is highly reactive with water and oxygen, and it readily tarnishes in air. It has several important physical properties, including a melting point of 769 °C and a density of 2.54 g/cm3.

Application

Se utiliza para sintetizar niobato de estroncio y potasio (Sr2KNb5O15, SKN). El SKN es de gran interés para los sensores piroeléctricos y varios dispositivos electro-ópticos.2
Dendritic strontium has a number of important uses including use as a component of alloys, as a material for pyrotechnic devices, as a reagent in the production of ferrite magnets, and as a dopant in the production of semiconductors.
Dendritic-strontium can be applied in the solid state synthesis of a Zintl phase, SrSn3Sb4, with an anionic channel framework of 30-membered rings.It can also be used to make strontium-potassium-niobate (Sr2KNb5O15, SKN) which is of great interest for pyroelectric sensors and various electro-optic devices.

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

hcodes

H260,H315

Hazard Classifications

Skin Irrit. 2 - Water-react 1

supp_hazards

EUH014

Storage Class

4.3 - Hazardous materials which set free flammable gases upon contact with water

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Synthesis of Sr 2 KNb 5 O 15 Thin Films by Chemical Solution Deposition Method.
Sakamoto W, et al.
Journal of Materials Research, 14(04), 1495-1502 (1999)
Emily Y Tsui et al.
Nature chemistry, 5(4), 293-299 (2013-03-21)
Redox-inactive metals are found in biological and heterogeneous water oxidation catalysts, but, at present, their roles in catalysis are not well understood. Here, we report a series of high-oxidation-state tetranuclear-dioxido clusters comprising three manganese centres and a redox-inactive metal (M).
Zuzana Saidak et al.
Pharmacology & therapeutics, 136(2), 216-226 (2012-07-24)
Osteoporosis is an important age-related bone disease characterized by increased bone turnover with insufficient bone formation relative to bone resorption. According to the current understanding of this disorder, anti-resorptive and anabolic drugs have been developed for therapeutic intervention. Another therapeutic
Faisal Hammad Mekky Koua et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(10), 3889-3894 (2013-02-22)
Oxygen-evolving complex of photosystem II (PSII) is a tetra-manganese calcium penta-oxygenic cluster (Mn4CaO5) catalyzing light-induced water oxidation through several intermediate states (S-states) by a mechanism that is not fully understood. To elucidate the roles of Ca(2+) in this cluster and
Wenjie Zhang et al.
Biomaterials, 34(13), 3184-3195 (2013-02-06)
Both surface chemistry and topography have significant influence on good and fast osseointegration of biomedical implants; the main goals in orthopeadic, dental and maxillofacial surgeries. A surface modification strategy encompassing the use of bioactive trace elements together with surface micron/nano-topographical
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