12046-54-7 Usage
Description
Strontium boride, with the chemical formula SrB6, is a black crystalline solid known for its high melting point, density, and stability. It appears as a crystalline black powder with slightly translucent dark red crystals capable of scratching quartz. Although not considered toxic, it can be an irritant to the skin, eyes, and respiratory tract. Strontium boride, along with other alkali earth metal borides, exhibits weak ferromagnetism at low temperatures. It has a molecular weight of 152.49 g/mol, a density of 3.39 g/cm3, and a melting point of 2235.0°C.
Uses
Used in Insulation Industry:
Strontium boride is used as an insulating material for its high melting point and density, making it suitable for applications requiring thermal and electrical insulation.
Used in Nuclear Industry:
In the nuclear industry, strontium boride is utilized as a component in nuclear control rods. Its properties contribute to the regulation and control of nuclear reactions within reactors.
Used in Refractory Applications:
Due to its high melting point and stability, strontium boride is also used as a refractory material in various high-temperature applications, such as in the production of ceramics and other heat-resistant materials.
Used in Research and Development:
Strontium boride's unique properties, including its weak ferromagnetism at low temperatures, make it a valuable material for scientific research and development in the fields of material science and physics.
Preparation
Strontium boride can be formed directly from the
elements. Sr melts at 777°C and boron melts at
2076 °C. Therefore, if a vapor of Sr metal at >850°C
(red-heat) is passed over crystals of boron, reaction
forms the desired boride. However, to obtain stoichiometric
compositions, it is better to heat the well-mixed
powders of Sr and B to obtain specific compounds:
Sr+ 6B→SrB6
Check Digit Verification of cas no
The CAS Registry Mumber 12046-54-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,0,4 and 6 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 12046-54:
(7*1)+(6*2)+(5*0)+(4*4)+(3*6)+(2*5)+(1*4)=67
67 % 10 = 7
So 12046-54-7 is a valid CAS Registry Number.
InChI:InChI=1/6B.Sr
12046-54-7Relevant articles and documents
Nanostructuring of Strontium Hexaboride via Lithiation
Ramachandran, Roshini,Salguero, Tina T.
, p. 4 - 7 (2018)
We describe the top-down nanostructuring of a metal boride using SrB6 as an example. To accomplish this transformation, we demonstrate (1) the direct lithiation of a metal boride using n-butyllithium and then (2) the reactive disassembly of Li-SrB6 into nanoparticles using water. The identity of the Li-SrB6 intermediate, a mixture of Li2B6, LixSr1-2xB6, and SrB6 phases, was established by powder X-ray diffraction (PXRD), solid-state 11B and 7Li NMR, transmission electron microscopy, selected-area electron diffraction, and scanning electron microscopy. The necessary 2Li+/Sr2+ substitution is enabled by cation mobility within the hexaboride lattice. The subsequent reaction with water results in Li2B6 decomposition and the release of 6 nanoparticles, which were characterized by PXRD, solid-state 11B and 7Li NMR, and high-resolution TEM. This chemistry opens new solution-based modification and processing options for metal borides.
Hydrogen storage properties of LiBH4 destabilized by SrH 2
Liu,Huang,Si,Zhang
, p. 8 - 11 (2013)
In this work, we have succeeded in destabilizing LiBH4 by the addition of SrH2, via the reaction 6LiBH4 + SrH 2 → SrB6 + 6LiH + 10H2 with a theoretical hydrogen capacity of 9.1 wt.%. According to the van't Hoff and Arrhenius equations, the dehydrogenation enthalpy change and activation energy for the LiBH4/SrH2 system were experimentally determined to be 48 kJ/mol H2 and 64 kJ/mol, respectively. Both are remarkably reduced in comparison with the pristine LiBH4, which is responsible for the improved dehydrogenation property of the LiBH4/SrH2 system. The dehydrogenated products SrB6 + 6LiH can be rehydrogenated to form LiBH4 and LiSrH3 at 723 K under an initial hydrogen pressure of 8.0 MPa.
Improvement of thermoelectric properties of alkaline-earth hexaborides
Takeda, Masatoshi,Terui, Manabu,Takahashi, Norihito,Ueda, Noriyoshi
, p. 2823 - 2826 (2008/10/09)
Thermoelectric (TE) and transport properties of alkaline-earth hexaborides were examined to investigate the possibility of improvement in their TE performance. As carrier concentration increased, electrical conductivity increased and the absolute value of
