12007-25-9

Basic information

• Product Name: MAGNESIUM BORIDE
• Synonyms: MAGNESIUM DIBORIDE;MAGNESIUM BORIDE;MAGNESIUM DIBORIDE - A PRODUCT OF H.C. STARCK;Magnesium boride/ 96+%;Magnesium boride,Magnesium diboride;MagnesiuM boride, 99% (Metals basis);Magnesium boride powder, -100 mesh, >=99% trace metals basis;Magnesium boride, 99% trace metals basis
• CAS NO: 12007-25-9
• Molecular Formula: B2Mg
• Molecular Weight: 45.93
• EINECS: 234-501-2
• Mol File: 12007-25-9.mol
• Article Data: 0

Chemical Properties

• Melting Point: 800°C
• Appearance: Dark Gray/Powder
• Density: 2.570
• Water Solubility: Insoluble in water.
• Merck: 13,5687
• CAS DataBase Reference: MAGNESIUM BORIDE(CAS DataBase Reference)
• NIST Chemistry Reference: MAGNESIUM BORIDE(12007-25-9)
• EPA Substance Registry System: MAGNESIUM BORIDE(12007-25-9)

Safety Data

• Statements: 15/29-22
• Safety Statements: 22-24/25
• RIDADR: 3134
• WGK Germany: 3
• RTECS: OM3078000
• TSCA: Yes
• Hazardous Substances Data: 12007-25-9(Hazardous Substances Data)

Usage

Description

Magnesium boride (MgB2) is a simple ionic binary compound that has proven to be an inexpensive and useful superconducting material. It is a brown solid, formed by the reaction of boron oxide and magnesium powder when ignited. It has a molecular weight of 45.9325 g/mol, melts at 830°C, and is hexagonal with a space group of P6/mmm and lattice constants of a=3.0864 ?, c=3.5215 ?. The density is 2.625 g/cm3, and the hardness is 1260 kg/mm2.

Uses

1. Used in Chemical Reagent Applications:
Magnesium boride is used as a chemical reagent for various industrial processes due to its unique properties.
2. Used in MRI Superconducting Magnets:
Magnesium boride is used as a superconducting material in MRI superconducting magnets, which are closed-loop cryocoolers, enhancing the efficiency and performance of the imaging equipment.
3. Used in Propellants, Pyrotechnics, and Explosives:
Due to its unique chemical properties, magnesium boride is used in the production of propellants, pyrotechnics, and explosives, providing a reliable and efficient source of energy.
4. Used in High-Temperature Boron-Based Thermoelectric Materials:
Magnesium boride is utilized as a high-temperature boron-based thermoelectric material, contributing to the development of advanced energy conversion systems.
5. Used in Superconducting Transformers, Rotors, and Transmission Cables:
As a superconductive material, magnesium boride is employed in superconducting transformers, rotors, and transmission cables to minimize energy loss and improve the efficiency of power transmission systems.
6. Used in Superconducting Radio Frequency Cavities:
Magnesium boride is used in superconducting radio frequency cavities to reduce energy loss and enhance the performance of communication and radar systems.
7. Used in Hydrogen Storage:
Magnesium boride is used for hydrogen storage applications, contributing to the development of clean and efficient energy storage solutions.
8. Used in High Energy Fuel:
As a component in high energy fuel, magnesium boride plays a role in the advancement of energy production and storage technologies.
9. Used in High Field Superconductors:
Magnesium boride is utilized in high field superconductors, enabling the development of advanced materials and technologies for various applications.

Preparation

Magnesium boride can be formed directly from the elements. Mg melts at 650 °C and boron melts at 2076 °C. Therefore, if a vapor of Mg metal at >750°C (red-heat) is passed over crystals of boron, reaction forms the desired boride. However, to obtain a stoichiometric compositions, it is better to heat the well-mixed powders of Mg and B to obtain specific compounds: Mg + 2B→MgB2

InChI:InChI=1/2B.3Mg/q2*-3;3*+2