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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

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

Analysenzertifikate (COA)

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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)
Zhiyue Lin et al.
American journal of physiology. Gastrointestinal and liver physiology, 307(2), G158-G163 (2014-05-24)
This study aimed to develop and validate a method to measure bolus flow time (BFT) through the esophagogastric junction (EGJ) using a high-resolution impedance-manometry (HRIM) sleeve. Ten healthy subjects were studied with concurrent HRIM and videofluoroscopy; another 15 controls were
Rosie McDonald et al.
Journal of clinical pathology, 66(4), 330-334 (2013-01-05)
Faecal occult blood test (FOBt) is commonly requested by clinicians in both primary and secondary care. The aim of this study was to examine the use and outcomes of clinician-requested FOB testing in a single Trust taking part in the
Tafadzwa P Makarawo et al.
The American surgeon, 79(7), 728-733 (2013-07-03)
Water as an intraluminal negative contrast medium produces improved image quality with reduced artefact. However, rapid absorption of oral water in the bowel relative to speed and timing of image capturing has limited its clinical application. These findings predate advances
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