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Sigma-Aldrich

Barium carbonate

ACS reagent, ≥99%

Sinônimo(s):

Witherite

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About This Item

Fórmula linear:
BaCO3
Número CAS:
Peso molecular:
197.34
Beilstein:
7045119
Número CE:
Número MDL:
Código UNSPSC:
12352302
ID de substância PubChem:
NACRES:
NA.21

grau

ACS reagent

Nível de qualidade

Ensaio

≥99%
99.0-101.0% (ACS specification)

forma

powder or chunks

Impurezas

≤0.002 meq/g water-soluble titr. base
≤0.005% oxidizers
≤0.015% insol. dil. HCl

pH

6.8 (37 °C, 3.67 g/L)

traços de ânion

S2-: ≤0.001%
chloride (Cl-): ≤0.002%

traços de cátion

Ca: ≤0.05%
Fe: ≤0.002%
K: ≤0.005%
Na: ≤0.02%
Sr: ≤0.7%
heavy metals (as Pb): ≤0.001%

cadeia de caracteres SMILES

[Ba++].[O-]C([O-])=O

InChI

1S/CH2O3.Ba/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2

chave InChI

AYJRCSIUFZENHW-UHFFFAOYSA-L

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Descrição geral

Barium carbonate (BaCO3) is an important alkaline-earth metal material in the production of barium salts, barium ferrite, pigments, ceramics, optical glass, and electric condensers. Additionally, it serves as a precursor to produce superconductors and ceramic materials.

Aplicação

Barium carbonate is used:
  • In the preparation of barium titanate using a mixture of BaCO3 and titania (TiO2) by solid-state reaction.
  • As an additive in the preparation of NBC (neodymium – barium –copper) ceramics.

Pictogramas

Exclamation mark

Palavra indicadora

Warning

Frases de perigo

Declarações de precaução

Classificações de perigo

Acute Tox. 4 Oral

Código de classe de armazenamento

13 - Non Combustible Solids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


Certificados de análise (COA)

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Reaction of anatase and rutile with barium carbonate.
AMIN A, et al.
Journal of the American Ceramic Society. American Ceramic Society, 66(10), 733-738 (1983)
Ali Khorsand Zak et al.
Nanoscale research letters, 9(1), 399-399 (2014-09-02)
Pure zinc oxide and zinc oxide/barium carbonate nanoparticles (ZnO-NPs and ZB-NPs) were synthesized by the sol-gel method. The prepared powders were characterized by X-ray diffraction (XRD), ultraviolet-visible (UV-Vis), Auger spectroscopy, and transmission electron microscopy (TEM). The XRD result showed that
Characterization of barium titanate powders: barium carbonate identification.
Lopez MCB, et al.
Journal of the American Chemical Society, 82(7), 1777-1786 (1999)
D Ekeberg et al.
Carbohydrate research, 335(2), 141-146 (2001-09-25)
A simple, but low-yielding method for the synthesis of 3-hexuloses has been elaborated. Oxidation of 1,2:5,6-di-O-isopropylidenehexitols with bromine in the presence of barium carbonate, followed by mild-acid hydrolysis of the oxidation products gave the free hexuloses. Oxidation occurred at only
Xiaorang Tian et al.
Journal of hazardous materials, 160(2-3), 589-593 (2008-04-25)
In this study, the exploration of making acidproof fracturing proppants using red mud was carried out. The main raw materials are red mud and the refractory waste. During the exploration, three methods were explored to enhance the acid resistance of

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