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Merck
CN

11432

Barium sulfate

puriss., meets analytical specification of Ph. Eur., BP, 97.5-100.5%

Synonym(s):

Baryte

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About This Item

Linear Formula:
BaSO4
CAS Number:
Molecular Weight:
233.39
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-784-4
MDL number:
Assay:
97.5-100.5%
Form:
powder
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grade

puriss.

assay

97.5-100.5%

form

powder

quality

meets analytical specification of Ph. Eur., BP

impurities

acidity or alkalinity, complies, oxidisable S-compounds, complies, residual solvents, complies, soluble Barium salts, complies, ≤0.001% heavy metals (as Pb), ≤0.3% soluble in acid

loss

≤2% loss on ignition, 600 °C

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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Storage Class

13 - Non Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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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)
Scanning electron microscopic and kinetic studies of the crystallization and dissolution of barium sulfate crystals.
Liu ST, et al.
Journal of Crystal Growth, 33(1), 11-20 (1976)



Global Trade Item Number

SKUGTIN
366153-25G04061831825985
366153-5G04061831825992
176303-200ML04061838134868