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243353

Sigma-Aldrich

Bariumsulfat

ReagentPlus®, 99%

Synonym(e):

Baryt, Schwerspat

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About This Item

Lineare Formel:
BaSO4
CAS-Nummer:
7727-43-7
Molekulargewicht:
233.39
EG-Nummer:
231-784-4
MDL-Nummer:
MFCD00003455
UNSPSC-Code:
12352106
PubChem Substanz-ID:
329752453
NACRES:
NA.55

Qualitätsniveau

100

Produktlinie

ReagentPlus®

Assay

99%

Form

powder

pH-Wert

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

InChIKey

TZCXTZWJZNENPQ-UHFFFAOYSA-L

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Allgemeine Beschreibung

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.

Anwendung

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.

Rechtliche Hinweise

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

Lagerklassenschlüssel

13 - Non Combustible Solids

WGK

nwg

Flammpunkt (°F)

does not flash

Flammpunkt (°C)

does not flash

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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)
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)
Koji Murono et al.
Diseases of the colon and rectum, 57(6), 715-724 (2014-05-09)
Preoperative chemoradiotherapy has been widely used for the prevention of local recurrence of locally advanced rectal cancer, and the effect of chemoradiotherapy is known to be associated with overall survival. We aimed to evaluate the association of the pathologic response
Dewey C Scheid et al.
Journal of the American Board of Family Medicine : JABFM, 26(5), 498-507 (2013-09-06)
The purpose of this study was to describe colorectal cancer screening (CRCS) practices across a variety of primary care clinics and identify the methods used by primary care physicians (PCPs) with higher rates of CRCS ("exemplars"). Physician questionnaires, structured interviews
Joon-Sung Kim et al.
American journal of physical medicine & rehabilitation, 92(10), 912-919 (2013-06-07)
The aim of this study was to report the characteristics of dysphagia in children with cerebral palsy (CP), related to gross motor function. Videofluoroscopic swallow study was performed in 29 children with CP, according to the manual of Logemann. Five
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