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Barium sulfate (BaSO4) scale is one of the most annoying and costly problems encountered in oilfield operations. The problem is far from being solved. The literature contains a number of excellent publications on the physical and chemical properties of BaSO4. publications on the physical and chemical properties of BaSO4.
Barium sulfate appears as white or yellowish odorless powder or small crystals. Mp: 1580°C (with decomposition). Density: 4.25 -4.5 g cm-3. Insoluble in water, dilute acids, alcohol.Soluble in hot concentrated sulfuric acid.Used as a weighting mud in oil-drilling, in
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This study presents the results of laboratory experiments carried out to investigate the formation of barium sulfate in sandstone cores from mixing injected sea water and formation water contain ...
This study presents the results of laboratory experiments carried out to investigate the formation of barium sulfate in sandstone cores from mixing injected sea water and formation water contain high concentration of barium at various temperatures (50 and 80°C)
@article{osti_7355748, title = {How barium sulfate is formed: an interpretation}, author = {Vetter, O J.G.}, abstractNote = {Basic thermodynamic relations are used to predict the locations and rates of BaSO/sub 4/, scale formation under field conditions. The effects of brine composition, pressure, and temperature are examined. These relations are insufficient to explain the full spectrum of ...
May 08, 2019 Barium sulfate is a contrast agent. Barium sulfate works by coating the inside of your esophagus, stomach, or intestines which allows them to be seen more clearly on a CT scan or other radiologic (x-ray) examination. Barium sulfate is used to help diagnose certain disorders of the esophagus, stomach, or intestines. Barium sulfate may also be ...
The solubility product of barium sulfate is low, so it is common that the formation of barium sulfate is thermodynamically favored in paper mill systems. However, the ions tend to remain in supersaturated condition until they encounter intense hydrodynamic shear, which nucleates precipitation.
Formula and structure: The chemical formula of barium sulfate is BaSO 4 and its molar mass is 233.43 g/mol. It is a salt composed of the barium cation (Ba 2+) and the sulfate anion (SO 4 2-), in which sulfur is attached to four oxygen atoms.The barium metal is in the +2 oxidation state. The chemical structure of barium sulfate is shown below:
Barium sulfate (or sulphate) is the inorganic compound with the chemical formula Ba SO 4.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. The white opaque appearance and its high density are exploited in its main applications.
Y. Nonomura, in Cosmetic Science and Technology, 2017. 14.2.1.1.5 Barium Sulfate. Barium sulfate, BaSO 4, is made by reacting barium hydroxide and other barium sources with sulfuric acid and has a long history as a translucent white pigment.Barium sulfate can be formed in various shapes such as planar, starred, or spherical structures depending on the formulation condition, especially the ...
This study presents the results of laboratory experiments carried out to investigate the formation of barium sulfate in sandstone cores from mixing injected sea water and formation water contain ...
BaSO4 - BARIUM SULFATE. Properties of barium sulfate: Barite. White, hard, with a strong heating melts and decomposes. Not soluble in water. It does not form crystalline hydrates. Shows low reactivity, does not react with acids (except concentrated sulfuric acid). It is recovering by carbon upon sintering.
May 08, 2019 Barium sulfate is a contrast agent. Barium sulfate works by coating the inside of your esophagus, stomach, or intestines which allows them to be seen more clearly on a CT scan or other radiologic (x-ray) examination. Barium sulfate is used to help diagnose certain disorders of the esophagus, stomach, or intestines. Barium sulfate may also be ...
The solubility product constant for barium sulfate is 1.1 x 10-10. Write the equation and the equilibrium expression for the dissolving of barium sulfate. BaSO 4 (s) --> Ba 2+ (aq) + SO 4 2-(aq) Ksp = [Ba 2+][SO 4 2-] Make an "ICE" chart. Let "x" represent the barium sulfate that dissolves in the sodium sulfate solution expressed in moles per ...
Jul 01, 2012 One of the most common methods for preventing scale formation is through the use of scale inhibitor. This study was conducted to investigate the permeability reduction caused by deposition of barium sulfate in Malaysian sandstone and Berea cores from mixing of injected Malaysian seawaters (Angsi and Barton) and formation water that contained high concentration of barium ion at various ...
Jul 03, 2020 Applies to barium sulfate: oral cream, oral paste, oral powder for suspension, oral suspension, oral tablet. Side effects requiring immediate medical attention. Along with its needed effects, barium sulfate may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
This study presents the results of laboratory experiments carried out to investigate the formation of barium sulfate in sandstone cores from mixing injected sea water and formation water contain ...
Formation of shaped barium sulfate-dye hybrids: waste dye utilization for eco-friendly treatment of wastewater. Gao HW(1), Lin J, Li WY, Hu ZJ, Zhang YL. Author information: (1)State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China. [email protected] ...
May 08, 2019 Barium sulfate is a contrast agent. Barium sulfate works by coating the inside of your esophagus, stomach, or intestines which allows them to be seen more clearly on a CT scan or other radiologic (x-ray) examination. Barium sulfate is used to help diagnose certain disorders of the esophagus, stomach, or intestines. Barium sulfate may also be ...
The solubility product constant for barium sulfate is 1.1 x 10-10. Write the equation and the equilibrium expression for the dissolving of barium sulfate. BaSO 4 (s) --> Ba 2+ (aq) + SO 4 2-(aq) Ksp = [Ba 2+][SO 4 2-] Make an "ICE" chart. Let "x" represent the barium sulfate that dissolves in the sodium sulfate solution expressed in moles per ...
BaSO4 - BARIUM SULFATE. Properties of barium sulfate: Barite. White, hard, with a strong heating melts and decomposes. Not soluble in water. It does not form crystalline hydrates. Shows low reactivity, does not react with acids (except concentrated sulfuric acid). It is recovering by carbon upon sintering.
Abstract. Barium sulfate (BaSO 4) is a common scale-forming mineral in natural and engineered systems, yet the rates and mechanisms of heterogeneous BaSO 4 nucleation are not understood. To address these, we created idealized interfaces on which to study heterogeneous nucleation rates and mechanisms, which also are good models for organic–water interfaces: self-assembled thin films ...
But Barium sulfate and strontium sulfate are not scales typically found in, or analyzed for, in cooling water systems. Their formation would not be expected in cooling systems operated in traditional concentration ratio ranges, using fresh water makeup. As concentration ratio
Aug 21, 2020 The ready formation of a precipitate indicates that barium sulfate is quite insoluble. In fact, 1 liter of water dissolves about 2 mg of barium sulfate at room temperature. Solubility of the carbonates. The carbonates become less soluble down the group. All the Group 2 carbonates are very sparingly soluble.
Barium and sulfate ions react to form barium sulfate precipitate, and the sodium and nitrate ions are unchanged - they are spectator ions. If we remove the unchanged ions from each side of the equation: Ba 2+ + 2 NO 3-+ 2 Na + + SO 4 2-→ BaSO 4 (s) + 2 Na + + 2 NO 3-
Barium sulfate scale is common in North Sea and GoM reservoirs. These fields often have barium in the original formation brine. Seawater injection (high sulfate concentration) for secondary oil recovery causes the scale problem. As the water flood matures and the seawater breaks through, these incompatible waters mix and a barium scale forms.
Barium chloride and potassium sulfate are both ionic compounds. We would expect them to undergo a double displacement reaction with each other. BaCl 2 + K 2 SO 4 BaSO 4 + 2 KCl By examining the solubility rules we see that, while most sulfates are soluble, barium sulfate is not. Because it is insoluble in water we know that it is the precipitate.
Precipitation of barium sulfate: Experimental investigation about the influence of supersaturation and free lattice ion ratio on particle formation. Chemical Engineering and Processing: Process Intensification 2006 , 45 (10) , 900-907.
Barium sulfate has such a low solubility in water that it is undetectable in solution without the use of elaborate equipment or methods. For practical purposes, it is quite insoluble in water. If two soluble ionic compounds, such as barium chloride and ammonium sulfate, are mixed, the ions rearrange to form a precipitate of barium sulfate ...
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