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441880

Sigma-Aldrich

Barium

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

Synonym(s):

Barium element

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About This Item

Empirical Formula (Hill Notation):
Ba
CAS Number:
7440-39-3
Molecular Weight:
137.33
EC Number:
231-149-1
MDL number:
MFCD00134031
UNSPSC Code:
12141505
PubChem Substance ID:
24867709
NACRES:
NA.23

Assay

99.9% 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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Application

Critical for the synthesis of pure Ba21M2O5HX (M = Ge, SI, Ga, In, Tl) suboxide Zintl phases.3
Catalyst for the formation of graphitic nanofilaments.

accessory

Product No.
Description
Pricing

Signal Word

Danger

Hazard Statements

H228,H260,H301,H314

Hazard Classifications

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

Storage Class Code

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

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Liang, C.H., et al.
Nanotech. in Catalysis, 2, 543-543 (2004)
C H Johnson et al.
Annals of emergency medicine, 20(10), 1138-1142 (1991-10-01)
Barium is a divalent alkaline earth metal used as the insoluble sulfate salt in contrast radiography and soluble acid salts in industry. Barium poisoning results from ingestion or inhalation of the acid salts; the most common poisoning occurs after ingestion
J W Hanrahan et al.
The Journal of general physiology, 87(3), 443-466 (1986-03-01)
K channels in the basolateral membrane of insect hindgut were studied using current fluctuation analysis and microelectrodes. Locust recta were mounted in Ussing-type chambers containing Cl-free saline and cyclic AMP (cAMP). A transepithelial K current was induced by raising serosal
Haifeng Zheng et al.
American journal of physiology. Cell physiology, 306(7), C705-C713 (2014-01-31)
Interstitial cells of Cajal (ICC) generate slow waves in gastrointestinal (GI) muscles. Previous studies have suggested that slow wave generation and propagation depends on a voltage-dependent Ca(2+) entry mechanism with the signature of a T-type Ca(2+) conductance. We studied voltage-dependent
Christine Austin et al.
Nature, 498(7453), 216-219 (2013-05-24)
Early-life dietary transitions reflect fundamental aspects of primate evolution and are important determinants of health in contemporary human populations. Weaning is critical to developmental and reproductive rates; early weaning can have detrimental health effects but enables shorter inter-birth intervals, which
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