insoluble in alcohol,[1] soluble in concentrated, hot sulfuric acid
Magnetic susceptibility (χ)
−71.3·10−6 cm3/mol
Refractive index (nD)
1.636 (alpha)
Structure
Crystal structure
orthorhombic
Thermochemistry
Heat capacity (C)
101.7 J/(mol K)
Std molar entropy (S⦵298)
132 J/(mol·K)[2]
Std enthalpy of formation (ΔfH⦵298)
−1465 kJ/mol[2]
Pharmacology
ATC code
V08BA01 (WHO)
Routes of administration
by mouth, rectal
Pharmacokinetics:
Bioavailability
negligible by mouth
Excretion
rectal
Legal status
US: ℞-only
Hazards
GHS labelling:
Precautionary statements
P260, P264, P270, P273, P314, P501
NFPA 704 (fire diamond)
0
0
0
Flash point
noncombustible[3]
NIOSH (US health exposure limits):
PEL (Permissible)
TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)[3]
REL (Recommended)
TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp)[3]
IDLH (Immediate danger)
N.D.[3]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
Chemical compound
Barium sulfate (or sulphate) is the inorganic compound with the chemical formula BaSO4. It is a white crystalline solid that is odorless and insoluble in water. It occurs as the mineral barite, which is the main commercial source of barium and materials prepared from it. Its opaque white appearance and its high density are exploited in its main applications.[4]
^CRC Handbook of Chemistry and Physics (85th ed.). CRC Press. 2004. pp. 4–45. ISBN 0-8493-0485-7.
^ abZumdahl, Steven S. (2009). Chemical Principles (6th ed.). Houghton Mifflin Company. ISBN 978-0-618-94690-7.
^ abcdNIOSH Pocket Guide to Chemical Hazards. "#0047". National Institute for Occupational Safety and Health (NIOSH).
^Holleman, A. F. and Wiberg, E. (2001) Inorganic Chemistry, San Diego, CA. Academic Press, ISBN 0-12-352651-5.
Bariumsulfate (or sulphate) is the inorganic compound with the chemical formula BaSO4. It is a white crystalline solid that is odorless and insoluble...
reactivity, barium is never found in nature as a free element. The most common minerals of barium are barite (bariumsulfate, BaSO4) and witherite (barium carbonate...
Bariumsulfate suspension, often simply called barium, is a contrast agent used during X-rays. Specifically it is used to improve visualization of the...
and industry. On an industrial scale, barium chloride is prepared via a two step process from barite (bariumsulfate). The first step requires high temperatures...
abnormalities. A contrast medium, usually a radiocontrast agent such as bariumsulfate mixed with water, is ingested or instilled into the gastrointestinal...
fluoroscopy. Radiocontrast agents are typically iodine, or more rarely bariumsulfate. The contrast agents absorb external X-rays, resulting in decreased...
example, addition of barium chloride, precipitates out bariumsulfate. The filtrate on evaporation yields ammonium chloride. Ammonium sulfate forms many double...
Solutions of sulfate salts such as Epsom salts or sodium sulfate may be given as first aid for barium poisoning, as they precipitate the barium as the insoluble...
sulfate, strontium sulfate, lead(II) sulfate, bariumsulfate, silver sulfate, and mercury sulfate, which are poorly soluble. Radium sulfate is the most insoluble...
mineral consisting of bariumsulfate (BaSO4). Baryte is generally white or colorless, and is the main source of the element barium. The baryte group consists...
Industrially, barium hydroxide is used as the precursor to other barium compounds. The monohydrate is used to dehydrate and remove sulfate from various...
barium chloride poisoning, where sulfate binds to barium to form insoluble bariumsulfate. Magnesium sulfate was historically used as a treatment for lead...
a simple salt. Solutions of barium bromide reacts with the sulfate salts to produce a solid precipitate of bariumsulfate. BaBr2 + SO2− 4 → BaSO4 + 2...
forms of zinc sulfate behave identically. These aqueous solutions consist of the metal aquo complex [Zn(H2O)6]2+ and SO2− 4 ions. Bariumsulfate forms when...
pictures) are taken while bariumsulfate, a radiocontrast agent, fills the colon via an enema through the rectum. The term barium enema usually refers to...
convert the bariumsulfate into barium carbonate (carrying the radium), thus making it soluble in hydrochloric acid. After dissolution, the barium and radium...
catalyst consisting of palladium deposited on calcium carbonate or bariumsulfate then poisoned with various forms of lead or sulfur. It is used for the...
mainly used to remove sulfate impurities from feedstock of the chlor-alkali process. Otherwise it is a common precursor to barium-containing compounds...
Barium peroxide is an inorganic compound with the formula BaO2. This white solid (gray when impure) is one of the most common inorganic peroxides, and...
widely used as a white pigment powder. It is composed of a mixture of bariumsulfate and zinc sulfide. These insoluble compounds blend well with organic...
sodium chloride). Strontium sulfate is a polymeric material, isostructural with bariumsulfate. Crystallized strontium sulfate is utilized by a small group...
applications. It is an intermediate in the carbothermal reduction of bariumsulfate to barium sulfide: BaSO4 + CO → BaSO3 + CO2 Lide, David R. (1998), Handbook...
g/mol, exact mass: 233.8570 u) may refer to: Bariumsulfate Baryte (or barite), a mineral made of bariumsulfate This set index page lists chemical structure...
calcium sulfate. In the refining of zinc, solutions of zinc sulfate are treated with hydrated lime to co-precipitate heavy metals such as barium. Calcium...
contrast exist, such as very dilute (0.5–1% w/v) bariumsulfate suspensions. Dilute bariumsulfate has the advantage that it does not cause allergic-type...
symptoms at all. Clinical investigations include X-rays when swallowing bariumsulfate, endoscopy, and CT scans. Surgically, the esophagus is difficult to...
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