Barium Sulfate

Base Information

• Chemical Name: Barium Sulfate
• CAS No.: 7727-43-7
• Deprecated CAS: 12751-32-5,8054-35-1,1314087-22-3,1352053-72-5,1400694-37-2,2095567-47-6,1314087-22-3,1352053-72-5,1400694-37-2,2095567-47-6,29203-54-1,8054-35-1
• Molecular Formula: BaSO4
• Molecular Weight: 233.40
• European Community (EC) Number: 231-784-4
• ICSC Number: 0827
• UN Number: 1564
• UNII: 25BB7EKE2E
• DSSTox Substance ID: DTXSID0050471
• Nikkaji Number: J2.268C
• Wikipedia: Barium sulfate,Barium_sulfate
• Wikidata: Q309038
• NCI Thesaurus Code: C28859
• RXCUI: 1331
• ChEMBL ID: CHEMBL2105897
• Mol file: 7727-43-7.mol

Synonyms:Barite;Baritop;Barium Sulfate;Barium Sulfate (2:1);E Z CAT;E-Z-CAT;EZCAT;Micropaque Oral;Sulfate, Barium

Chemical Property of Barium Sulfate

Chemical Property:

• Appearance/Colour: white powder
• Melting Point: 1580oC
• Boiling Point: 330 °C at 760 mmHg
• Density: 4.5
• Storage Temp.: Storage temperature: no restrictions.
• Solubility.: water: insoluble
• Water Solubility.: 0.0022 g/L (50 ºC)
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 0
• Exact Mass: 233.856977
• Heavy Atom Count: 6
• Complexity: 62.2
• Transport DOT Label: Poison

Purity/Quality:

98.5% ^*data from raw suppliers

Safty Information:

• Pictogram(s): Xn
• Hazard Codes: Xn
• Statements: 20/21/22-36/37/38
• Safety Statements: 22-24/25-36-26

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Metals -> Metals, Inorganic Compounds
• Canonical SMILES: [O-]S(=O)(=O)[O-].[Ba+2]
• Inhalation Risk: Evaporation at 20 °C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly.
• Effects of Long Term Exposure: Repeated or prolonged inhalation of dust particles may cause effects on the lungs. This may result in baritosis (a form of benign pneumoconiosis).
• Medical Use and Risks: Radiographic Examination: Commonly used to radiographically examine the intestines and improve visualization by opacifying areas of interest fluoroscopically.; Administration: Can be given orally or rectally for imaging purposes.; Historical Context: Used in the early twentieth century as a substitute for a prior mixture called 鈥淩ieder meal.鈥?; Risks: Potential risks associated with barium enema include colonic perforation, fecal impaction, and constipation. Generally excreted in feces without complication, but may traverse colonic mucosa in cases of preexisting mucosal damage.
• Industrial Importance: Composition: Barium sulfate (BaSO4) is composed of the barium cation (Ba2+) and the sulfate anion (SO42鈭?).; Synthesis: Liquid-phase synthesis with subsequent precipitation is convenient due to the very low solubility of barium sulfate. Control of reagent mixing is crucial to prevent uncontrolled crystal growth.; Deposition Issues: Barium sulfate deposition is a serious problem in flow assurance issues in various industries, with deposition occurring in two phases: the growth phase and the steady-state phase.
• Toxicology and Safety: Unabsorbed Nature: Barium sulfate used for medical purposes remains essentially unabsorbed and is unlikely to cause adverse effects.; Antagonistic Effect: Barium acts as a physiological antagonist of potassium by blocking passive efflux potassium channels, leading to extracellular hypokalemia.; Symptoms of Poisoning: Acute barium poisoning symptoms include gastrointestinal, cardiac, and skeletomuscular stimulation followed by paralysis in severe cases.; Treatment: Potassium infusion and soluble sulfates are effective antidotes for barium poisoning. Inhalation of barium sulfate dust causes benign pneumoconiosis ("baritosis") with no impairment of pulmonary function.; Minimal Toxicity of Nanoparticles: Inhaled barium sulfate nanoparticles are cleared quickly from the lungs in rats and cause minimal pulmonary response and no systemic toxicity.