BARIUM HEXABORIDE Chemical Properties

Melting point:

2270°C

Density 

4.36 g/mL at 25 °C(lit.)

solubility 

insoluble in H2O; soluble in acid solutions; insoluble in EtOH

form 

black cubic crystals

color 

black cubic crystals, crystalline

Water Solubility 

Soluble in HNO₃. Insoluble in water

EPA Substance Registry System

Barium boride (BaB6), (OC-6-11)- (12046-08-1)

Safety Information

Hazard Codes 

Xn

Risk Statements 

20/22

Safety Statements 

28

RIDADR 

UN 1564 6.1/PG 2

WGK Germany 

1

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

III

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

BARIUM HEXABORIDE Usage And Synthesis

Chemical Properties

metallic black cub; -100 mesh 99.5% purity [CER91] [CRC10]

Uses

Barium hexaboride has been considered as a candidate for manufacture of a “hot-cathode” electron gun for use in various instruments.

Preparation

Barium boride can be formed directly from the elements. Ba melts at 727 °C and boron melts at 2076 °C. Therefore, if a vapor of Ba metal at >750 °C (red-heat) is passed over crystals of boron, a chemical reaction forms the desired boride. However, to obtain stoichiometric compositions, it is better to heat the well-mixed powders of Ba and B to obtain specific compounds:
Ba + 6B→BaB₆

BARIUM HEXABORIDE(12046-08-1)Related Product Information

• BARIUM HEXABORIDE