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243353

Sigma-Aldrich

Barium sulfate

ReagentPlus®, 99%

Synonym(s):

Baryte

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About This Item

Linear Formula:
BaSO4
CAS Number:
7727-43-7
Molecular Weight:
233.39
EC Number:
231-784-4
MDL number:
MFCD00003455
UNSPSC Code:
12352106
PubChem Substance ID:
329752453
NACRES:
NA.55

Quality Level

100

product line

ReagentPlus®

Assay

99%

form

powder

pH

7

SMILES string

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

InChI

1S/Ba.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2

InChI key

TZCXTZWJZNENPQ-UHFFFAOYSA-L

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General description

Barium sulphate is widely employed as an inorganic filler. Its crystals belong to the rhombic crystal system. The rhombic crystals transforms to monoclinic form at 1148°C and eventually it decomposes to barium oxide, sulfur dioxide and oxygen at temperatures above 1400°C.

Application

Barium sulfate may be used in the following studies:
  • Qualitative and quantitative analysis of Ba2+ and SO4-2 ions.
  • Preparation of sulfur dioxide.
  • Preparation of hybrid organic-inorganic material.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

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Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

does not flash

Flash Point(C)

does not flash

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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Improved method for the preparation of sulfur dioxide from barium sulfate for isotope ratio studies.
Bailey SA and Smith JW.
Analytical Chemistry, 44(8), 1542-1543 (1972)
Ionic liquid-functionalized crystals of barium sulfate: A hybrid organic-inorganic material with tuned hydrophilicity and solid-liquid behavior.
Kowacz M, et al.
Materials Chemistry and Physics, 160, 308-314 (2015)
Gregory S Cooper et al.
Cancer, 119(10), 1800-1807 (2013-02-26)
Professional society guidelines recommend follow-up colonoscopy for patients with resected colonic adenomas. However, adherence to guideline recommendations in routine clinical practice has not been well characterized. The authors used a population-based sample of Medicare beneficiaries to identify all patients aged
Nam P Nguyen et al.
PloS one, 8(3), e56290-e56290 (2013-03-19)
The study aims to assess the feasibility of Tomotherapy-based image-guided radiotherapy (IGRT) to reduce the aspiration risk in patients with non-laryngeal and non-hypopharyngeal cancer. A retrospective review of 48 patients undergoing radiation for non-laryngeal and non-hypopharyngeal head and neck cancers
Steve Halligan et al.
Lancet (London, England), 381(9873), 1185-1193 (2013-02-19)
Barium enema (BE) is widely available for diagnosis of colorectal cancer despite concerns about its accuracy and acceptability. Computed tomographic colonography (CTC) might be a more sensitive and acceptable alternative. We aimed to compare CTC and BE for diagnosis of
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