Barium sulfate: Difference between revisions

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* [[Barite]]
* [[Barite]]
===Synthesis===  
===Synthesis===  
* A metathesis reaction between barium sulfide and sodium or potassium sulfate in water
* Combining any soluble barium salt (e.g. [[barium chloride]]) with any soluble sulfate salt (e.g. [[sodium sulfate]] or [[copper sulfate]]) will yield  a precipitate of [[barium sulfate]].
*: {{#Chem:  BaS(aq) + Na2SO4(aq) --> BaSO4(s) + Na2S(aq)}}
===Extraction===
* Naturally occurring [[barite]] is primarily [[barium sulfate]]/


==Testing==  
==Testing==  

Revision as of 22:21, 19 March 2025

 
Barium sulfate
Chemical formula {{#Chem:BaSO4}}
Molar Mass(g/mol) 233.43 
Density(g/cc) 4.3 
Melting Point(°C) 1345 
Boiling Point(°C) 1600 
Solubility in water(g/L) .0024
NFPA 704
0
0
0
 

Barium sulfate is a radiographic contrast agent that is supplied as white to lightly colored powder for suspension (40% w/w) for oral administration. Formulations can contain excipients including: artificial candied sugar flavor, carrageenan, citric acid, ethyl vanillin, natural and artificial orange flavor, polysorbate 80, saccharin sodium, simethicone, sodium citrate, sodium carboxymethylcellulose, sorbitol and xanthan gum.

Uses

Primary

  • WHO LEM radiocontrast agent

Other

  • Precursor to barium sulfide, thence to all barium salts

Natural occurrence

  • The mineral barite is primarily barium sulfate

Hazards

  • GRAS

Production

WARNING: Like calcium sulfate, this is a "terminal chemical". Producing this compound at scale for any purpose is a bad idea, logistically. Every mol of sulfate ions trapped in this material is one mol of sulfuric acid lost.

Extraction

Synthesis

Extraction

Testing

Purification

Storage

Disposal

See Also

References