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202762

Sigma-Aldrich

Barium sulfate

99.99% trace metals basis

Synonym(s):

Baryte

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About This Item

Linear Formula:
BaSO4
CAS Number:
Molecular Weight:
233.39
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.22

Assay

99.99% trace metals basis

form

powder

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 sulfate is an insoluble salt commonly used in X-ray imaging as a contrast agent.

Application

Barium sulfate may be used as a catalyst for the conversion of lactic acid to acrylic acid via dehydration.

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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Barium sulphate catalyzed dehydration of lactic acid to acrylic acid.
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