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474711

Sigma-Aldrich

Barium

dendritic pieces, purified by distillation, 99.99% trace metals basis

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Synonym(s):
Barium element
Empirical Formula (Hill Notation):
Ba
CAS Number:
Molecular Weight:
137.33
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

99.99% trace metals basis

form

dendritic pieces

purified by

distillation

reaction suitability

reagent type: reductant

resistivity

50.0 μΩ-cm, 20°C

bp

1640 °C (lit.)

mp

725 °C (lit.)

density

3.6 g/mL at 25 °C (lit.)

SMILES string

[Ba]

InChI

1S/Ba

InChI key

DSAJWYNOEDNPEQ-UHFFFAOYSA-N

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1 of 4

This Item
441880735787GF30766978
Barium dendritic pieces, purified by distillation, 99.99% trace metals basis

474711

Barium

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

441880

Barium

Barium beads, 0.5-2.0 mm particle size, 99% trace metals basis

735787

Barium

Barium lump, 25 mm max. lump size, weight 500 g, purity 99%

GF30766978

Barium

assay

99.99% trace metals basis

assay

99.9% trace metals basis

assay

99% trace metals basis

assay

99%

resistivity

50.0 μΩ-cm, 20°C

resistivity

50.0 μΩ-cm, 20°C

resistivity

50.0 μΩ-cm, 20°C

resistivity

-

bp

1640 °C (lit.)

bp

1640 °C (lit.)

bp

1640 °C (lit.)

bp

-

mp

725 °C (lit.)

mp

725 °C (lit.)

mp

725 °C (lit.)

mp

-

density

3.6 g/mL at 25 °C (lit.)

density

3.6 g/mL at 25 °C (lit.)

density

3.6 g/mL at 25 °C (lit.)

density

-

General description

Barium is a reactive, soft electropositive metal with a body-centered cubic crystal structure. It can be produced in a vacuum by reducing its oxide with aluminum. It has medium-specific weight and good electrical conductivity. It is widely used in alloying, removing unwanted gases from vacuum tubes, and as a reducing agent.

Application

Barium can be used as a precursor to synthesize Ba3Bi6.67Se13,Ba3Bi6PbSe13, and Ba3Bi6SnSe13.

It can be used as a dopant for Pb2+replacement in perovskite films. The addition of barium enhances the power conversion efficiency of organic-inorganic lead halide solar cells.
Critical for the synthesis of pure Ba21M2O5HX (M = Ge, SI, Ga, In, Tl) suboxide Zintl phases.3

accessory

Product No.
Description
Pricing

signalword

Danger

Hazard Classifications

Acute Tox. 3 Oral - Eye Dam. 1 - Flam. Sol. 1 - Skin Corr. 1B - Water-react 1

Storage Class

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

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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


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