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474711

Sigma-Aldrich

Barium

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

Sinônimo(s):

Barium element

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About This Item

Fórmula empírica (Notação de Hill):
Ba
Número CAS:
7440-39-3
Peso molecular:
137.33
Número CE:
231-149-1
Número MDL:
MFCD00134031
Código UNSPSC:
12141505
ID de substância PubChem:
24871038
NACRES:
NA.23

Nível de qualidade

100

Ensaio

99.99% trace metals basis

Formulário

dendritic pieces

purificado por

distillation

adequação da reação

reagent type: reductant

resistividade

50.0 μΩ-cm, 20°C

p.e.

1640 °C (lit.)

pf

725 °C (lit.)

densidade

3.6 g/mL at 25 °C (lit.)

cadeia de caracteres SMILES

[Ba]

InChI

1S/Ba

chave InChI

DSAJWYNOEDNPEQ-UHFFFAOYSA-N

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Descrição geral

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.

Aplicação

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

acessório

Nº do produto
Descrição
Preços

Palavra indicadora

Danger

Frases de perigo

H228,H260,H301,H314

Classificações de perigo

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

Código de classe de armazenamento

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

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

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

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Certificados de análise (COA)

Lot/Batch Number
0000012688
MKCC8685
MKCC8689
MKCC6648
MKCB3818

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