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237108

Sigma-Aldrich

Barium carbonate

ACS reagent, ≥99%

Synonym(s):

Witherite

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About This Item

Linear Formula:
BaCO3
CAS Number:
513-77-9
Molecular Weight:
197.34
Beilstein/REAXYS Number:
7045119
EC Number:
208-167-3
MDL number:
MFCD00003448
UNSPSC Code:
12352302
PubChem Substance ID:
329752444
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

assay

≥99%
99.0-101.0% (ACS specification)

form

powder or chunks

impurities

≤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)

anion traces

S2-: ≤0.001%
chloride (Cl-): ≤0.002%

cation traces

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

SMILES string

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

InChI

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

InChI key

AYJRCSIUFZENHW-UHFFFAOYSA-L

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General description

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.

Application

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.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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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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
Kevin V Brix et al.
Ecotoxicology and environmental safety, 73(7), 1646-1652 (2010-07-14)
A series of Toxicity Identification Evaluations (TIEs) to identify the cause(s) of observed toxicity to Ceriodaphnia dubia have been conducted on a hard rock mining effluent. Characteristic of hard rock mining discharges, the effluent has elevated (∼3000 mg l(-1)) total
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