CAS 12007-99-7 With Factory Price CaB6 Calcium Hexaboride

Overview of Calcium Hexaboride CaB6 Powder

Calcium hexaboride (calcium boride) is a compound of calcium and boron, with the chemical formula CaB6. Due to its high conductivity, hardness, chemical stability and melting point, it is an important material. It is a black, shiny, chemically inert powder with low density. It has a typical cubic structure of six metal boride, with octahedral units of six boron atoms and calcium atoms.

CaB6 has been investigated in the past due to a variety of peculiar physical properties, such as superconductivity, valence fluctuation and Kondo effects. However, the most remarkable property of calcium boride is its ferromagnetism. It occurs at unexpectedly high temperatures (600K) and with a low magnetic moment. The origin of this high-temperature ferromagnetism is the ferromagnetic phase of the dilute electron gas, linkage to the presumed excitonic state in calcium boride, or external impurities on the surface of the sample. The impurities might include iron and nickel, probably coming from impurities in the boron used to prepare the sample.

CaB6 is insoluble in H2O, MeOH (methanol), and EtOH (ethanol) and dissolves slowly in acids. Its microhardness is 27 GPa, Knoop hardness is 2600 kg/mm2), the Young modulus is 379 GPa, and electrical resistivity is greater than 2·1010 Ω·m for pure crystals. CaB6 is a semiconductor with an energy gap estimated at 1.0 eV. The low, semi-metallic conductivity of many CaB6 samples can be explained by unintentional doping due to impurities and possible non-stoichiometry. Feel free to send an inquiry to get the latest price if you would like to buy Calcium Hexaboride CaB6 Powder in bulk.

(Calcium Hexaboride CaB6 Powder CAS 12007-99-7)

 

Performance of CaB6 Powder:

Calcium boride has the characteristics of high melting point and high hardness. Its physical and chemical properties are quite stable. When calcined in air, sub-micron CaB6 will only gain weight after 800 degrees Celsius and is not easy to oxidize. CaB6 is generally insoluble in hydrochloric acid and sulfuric acid, so technically to remove impurity materials by hot hydrochloric acid, but CaB6 is soluble in nitric acid.

Calcium Hexaboride Properties
Other Names	zirconium boride, ZrB2 powder
CAS No.	12007-99-7
Compound Formula	CaB6
Molecular Weight	104.944
Appearance	Black Powder
Melting Point	2235 °C
Boiling Point	N/A
Density	2.3-2.45 g/cm3
Solubility in H2O	Insoluble
Exact Mass	N/A
Calcium Hexaboride Health & Safety Information
Signal Word	Warning
Hazard Statements	H315-H319-H335
Hazard Codes	Xi
Risk Codes	N/A
Safety Statements	N/A
Transport Information	NONH for all modes of transport

Parameter of Calcium Hexaboride CaB6 Powder

Product Name	MF	Purity	Particle Size	Bulk Density	Melting Point	Color
Calcium Hexaboride	CaB6	99.5%	-325 mesh	2.33 g/cm3	2230℃	Gray Black

Application of Calcium Hexaboride

Calcium hexaboride (CaB6), also known as boron calcium or calcium boride, is a versatile material with numerous applications. It is primarily synthesized through methods such as carbothermal reduction and self-propagating high-temperature synthesis. The stable B-Ca compound features a high melting point and hardness thanks to the strong covalent bonds between B-B.
One of CaB6’s key applications is as an antioxidant, anti-erosion, and strength enhancer for refractory materials like dolomite and magnesite dolomite. It also serves as a deoxidizer and degasser for high-conductivity copper to improve its conductivity and strength. In addition, CaB6 finds use in the nuclear industry as a neutron-shielding material. Its semiconducting properties make it suitable for use in spintronic components with a Curie temperature of 900K.
Furthermore, CaB6 is a raw material for manufacturing boron trichloride (BCl3) and amorphous boron. It is also crucial for producing high-purity metal borides (such as TiB2, ZrB2, and HfB2) and boron alloys (like Ni-B, Co-B, and Cu-B). Additionally, CaB6 is used in the production of calcium-boron nitrides and hexagonal boron nitride, which are further processed to create high-performance cubic boron nitride crystals.
Calcium hexaboride possesses unique properties and stability, making it essential in various industries such as refractory materials, semiconductor manufacturing, nuclear shielding, and metal alloy production.

Production Method of Calcium Hexaboride  

One of the main reactions of industrial production is:

CaO + 3 B2O3 + 10 Mg→CaB6 + 10 MgO

Other methods of producing CaB6 powder include:

Calcium or calcium oxide reacts directly with boron at 1000°C;

Ca + 6B→CaB6

Ca(OH)2 reacts with boron under a vacuum of about 1700°C (carbothermal reduction);

Ca（OH）2 + 7B→CaB6 + BO（g）+ H2O（g）

The reaction of calcium carbonate and boron carbide under vacuum above 1400°C (Carbothermal reduction)

CaO and H3BO3 react with Mg to 1100°C.

Low temperature (500°C) synthesis

CaCl2 + 6NaBH4→CaB6 + 2NaCl + 12H2 + 4Na

The material quality is relatively poor. To produce pure calcium boride (CaB6) single crystals, which are used as cathode materials, the obtained CaB6 powder undergoes further recrystallization and purification using zone melting technology. The typical growth rate for this process is 30 cm/h, and the resulting crystal size is approximately 1 cm.
Single-crystal CaB6 nanowires, with diameters ranging from 15 to 40 nm and lengths between 1 and 10 microns, can be produced by pyrolyzing diborane (B2H6) on calcium oxide (CaO) powder at temperatures of 860-900°C in the presence of an nickel catalyst.

Storage Condition of Calcium Hexaboride CaB6 Powder

The damp reunion will affect CaB6 powder dispersion performance and use effects. Therefore, calcium hexaboride CaB6 powder should be sealed in vacuum packaging and stored in a cool and dry room. The calcium hexaboride can not be exposed to air. In addition, the CaB6 powder should be avoided under stress.

 

Company Profile

RBOSCHCO is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.

The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.If you are interested, please feel free to contact us or click on the needed products to send an inquiry. 

 

Packing and Shipment of Calcium Hexaboride CaB6 Powder

We have many different kinds of packing which depend on the Calcium Hexaboride CaB6 Powder quantity.

Calcium Hexaboride CaB6 Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.

Calcium Hexaboride CaB6 Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

 

 

Payment Methods of Calcium Hexaboride

L/C, T/T, Western Union, Paypal, Credit Card etc.

5 FAQs of Calcium Hexaboride

Q1

What is calcium hexaboride used for?

Answer: Calcium hexaboride is utilized in the production of boron-alloyed steel and as a deoxidizing agent in the manufacturing of oxygen-free copper. This process results in higher conductivity compared to copper deoxidized with phosphorus, due to the low solubility of boron in copper.

Q2

What is the structure of cab6?

Answer: Commonly referred to as the CaB 6 prototype structure, the lattice is composed of a single metal atom surrounded by eight octahedra of boron atoms, each centered on a corner of the cube ( Fig. 1) and of Pm ¯ 3m symmetry.

Q3

What is the crystal structure of calcium hexaboride?

Answer: Calcium hexaboride has a cubic crystal structure, with calcium located at the center of the unit cell. The structure features a compact and regular arrangement of boron atoms, which form octahedra. These octahedra are connected at their vertices by B-B bonds, creating a three-dimensional network of boron. Each calcium atom is surrounded by 24 nearest-neighbor boron atoms.

 Q4

Can Calcium Hexaboride be used to produce other materials, and if so, what are they?
Answer:Yes, Calcium Hexaboride can be used as a raw material for manufacturing boron trichloride and amorphous boron. It is also crucial for producing high-purity metal borides and boron alloys.

Q5

What makes Calcium Hexaboride unique and why is it important in various industries?
Answer: Calcium Hexaboride is unique due to its high melting point, hardness, and semiconducting properties. These properties make it essential in industries such as refractory materials, nuclear shielding, and semiconductor manufacturing.