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237094

Sigma-Aldrich

Barium

rod, diam. ~2 cm, ≥99% trace metals basis

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Empirical Formula (Hill Notation):
Ba
CAS Number:
Molecular Weight:
137.33
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

≥99% trace metals basis

form

rod

reaction suitability

reagent type: reductant

resistivity

50.0 μΩ-cm, 20°C

diam.

~2 cm

impurities

≤2% 2-ethylhexyl dihydrogenphosphate and tris(2-ethylhexyl) phosphate
0.5% strontium

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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This Item
244864483745266302
Barium rod, diam. ~2 cm, ≥99% trace metals basis

237094

Barium

Potassium chunks (in mineral oil), 98% trace metals basis

244864

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Sodium cubes, contains mineral oil, 99.9% trace metals basis

483745

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Magnesium ReagentPlus®, ribbon, ≥99% trace metals basis

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Magnesium

reaction suitability

reagent type: reductant

reaction suitability

reagent type: reductant

reaction suitability

reagent type: reductant

reaction suitability

reagent type: reductant

density

3.6 g/mL at 25 °C (lit.)

density

0.86 g/mL at 25 °C (lit.)

density

-

density

1.74 g/mL at 25 °C (lit.)

bp

1640 °C (lit.)

bp

760 °C (lit.)

bp

883 °C (lit.)

bp

1090 °C (lit.)

form

rod

form

chunks (in mineral oil)

form

cubes

form

ribbon

mp

725 °C (lit.)

mp

64 °C (lit.)

mp

97.8 °C (lit.)

mp

648 °C (lit.)

Application

Critical for the synthesis of pure Ba21M2O5HX (M = Ge, SI, Ga, In, Tl) suboxide Zintl phases.3
Promotes anchorage-independent growth and invasion of human HaCaT keratinocytes via c-SRC kinase activation

Reactant for synthesis of heterobimetallic alkaline earth complexes

Commonly used for medicinal purposes, particularly for visualization of the gastrointestinal tract

Reactant involved in:
  • Interactions with fused quartz
  • Aggregation of alginate-coated iron oxide nanoparticles

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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Dalton Transactions (2011)
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Published studies have reported a wide range of sensitivities and specificities for computed tomographic (CT) colonography for polyp detection, generating controversy regarding its diagnostic accuracy. A meta-analysis of published studies comparing the accuracies of CT colonography and colonoscopy for polyp
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Early-stage aggregation kinetics studies of alginate-coated hematite nanoparticles in solutions containing alkaline-earth metal cations revealed enhanced aggregation rates in the presence of Ca2+, Sr2+, and Ba2+, but not with Mg2+. Transmission electron microscopy (TEM) imaging of the aggregates provided evidence

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