Process for producing barium sulfate, barium sulfate and ...

In this process, equimolar quantities of Ba 2+ and SO 4 2− ions and 0.1 to 2% barium sulfate nuclei (based on barium sulfate passed through) are fed simultaneously and continuously into a precipitation vessel at a temperature of between 50° C. and 80° C., with slow stirring, and flow rate and stirring speed are controlled at a constant ...

اقرأ أكثر

Process for producing barium sulfate with reactive surface ...

A process for producing a barium sulfate pigment having a chemically reactive thiosulfate, silicate, fluoride, fluorosilicate, monofluorophosphate, or tungstentate functional group bonded to its surface, said functional group capable of effecting a covalent interaction between the pigment and an organic resin, which comprises the steps of: ...

اقرأ أكثر

Barium in Drinking-water - WHO

Barium chloride 1 BaCl 2 Barium oxide BaO Barium hydroxide 1 Ba(OH) 2 Barium sulfate BaSO 4 Barium acetate 543-80-6 Ba(C 2 H 3 O 2) 2 Barium carbonate 513-77-9 BaCO 3 1.2 Physicochemical properties Physicochemical properties of select barium compounds are provided in Table 2. Table 2.

اقرأ أكثر

Sulfate Removal Technologies A Review - Water Online

If sulfate must be further reduced ("polished"), an add-on process such as barium, CESR, or SAVMIN is recommended. As a polishing step for sulfate removal, barium salts can be added to precipitate barium sulfate, which has a very low solubility in water, with the final sulfate concentration limited only by the amount of barium added and ...

اقرأ أكثر

Barium sulfate - CAMEO

Barium sulfate is an inert, transparent pigment that is often used as a filler or as a base for lake pigments. In recent years, it has also been used as a filler and extender in Paper, Wallpaper, Linoleum, Oilcloth, Rubber, plastics, Flannel, and Shoddy cloth. Barium sulfate can also be made artificially by a process discovered in late ...

اقرأ أكثر

Barium Enema | Johns Hopkins Medicine

A barium enema is a radiographic (X-ray) examination of the lower gastrointestinal (GI) tract. The large intestine, including the rectum, is made visible on X-ray film by filling the colon with a liquid suspension called barium sulfate (barium). Barium highlights certain areas in the body to create a clearer picture.

اقرأ أكثر

Barium Carbonate process for sulphate and metal removal ...

The barium process is suitable for treatment of sulphate-rich effluents. Kun (1972) studied the removal of sulphate with barium carbonate and obtained good results. However, he identified three problems: a long retention time requirement, high concentrations of soluble barium in the treated

اقرأ أكثر

What is Barium Sulfate? (with pictures) - wiseGEEK

Barium sulfate is often given orally before gastrointestinal imaging tests. Barium sulfate is a naturally occurring white solid that may appear slightly off white. It is extracted from the mineral barium. The substance usually has no taste or smell but has on occasion been reported to have a mild fruit odor.

اقرأ أكثر

5. PRODUCTION, IMPORT/EXPORT, USE, AND DISPOSAL

Earth's crust (Genter 2001). Barium and its compounds may be found in nature or produced industrially for various uses. The largest natural source of barium is barite ore, which is composed largely of barium sulfate and is found in beds or masses in limestone, dolomite, …

اقرأ أكثر

Surface Modification of Barium Sulfate Particles

1. Introduction. Barium sulfate (BaSO 4) is available as barites, its naturally occurring form, or Blanc fixe which is a synthetic precipitate.Most barites are extracted from layers of sedimentary rock and used as weighting agent in oil or during natural gas drilling due to their high specific gravity [1].

اقرأ أكثر

Barium Sulfate (BaSO4) - Structure, Properties, Molecular ...

BaSO 4 is a sulfate salt of barium and is found as mineral barite. It is a crystalline solid white which is insoluble in water and alcohol but soluble in concentrated acids. It is odourless. Barium Sulfate is an alkaline, divalent metal. It is non-toxic and is safe for medical use. It is widely used in the production of oil and natural gas to ...

اقرأ أكثر

Barium sulfate | BaSO4 - PubChem

Barium sulfate is a metal sulfate with formula BaO4S. Virtually insoluble in water at room temperature, it is mostly used as a component in oil well drilling fluid it occurs naturally as the mineral barite. It has a role as a radioopaque medium. It is a barium salt and a metal sulfate.

اقرأ أكثر

Processing of Barium Sulphide to Barium Carbonate and …

barium-carbonate) Process is a most cost-effective process as the sludge produced is processed back to the process raw materials and valuable by-products, such as sulphur. Coal is the main material used in processing the sludge.

اقرأ أكثر

Barium sulfate - Wikipedia

اقرأ أكثر

Barium Swallow - StatPearls - NCBI Bookshelf

A barium swallow study can also be used to obtain some details and evaluation of the swallowing process at the pharyngeal level, although this is often served by a Videofluoroscopic Swallow Study. The barium esophagogram is noninvasive and readily performed, requiring only radiographic still-image capability and contrast medium.

اقرأ أكثر

Barium Sulfate - Truth In Aging

*Barium sulfate takes the form of an inorganic salt *It is insoluble in water. Functions: This ingredient is sourced from the mineral barite which goes a process known as blanc fixe to produce barium sulfate ().In bulk barium sulfate is a white crystalline solid, but in smaller amounts it …

اقرأ أكثر

Process for producing plate barium sulfate. - SAKAI ...

1. A process for producing a plate barium sulfate having a particle size of from 1 to 100 µm, wherein neither a sulfide nor a soluble barium salt is detected by an analysis method according to the Japanese Cosmetics Material Standard as published by the Ministry of Health and Welfare as Notification Nos. 321 and 322, 1967, which comprises the steps of (a) feeding a barium hydroxide …

اقرأ أكثر

MM INDUSTRIES - Barium Sulfate

Barium sulphate performs excellent in automotive and powder coatings with its ideal optical characteristics and also providing protection by being mechanically and chemically stable. NATURAL GROUND BARYTES. Briefly, the physical process is the stones directly process into fine powders.

اقرأ أكثر

Barium sulfate

Liangjiang brand barium sulfate (precipitated) is made by precipitated process,the physical performance is superior,littleimpurity,fineness uniform, Barium sulfate (superfine) Liangjiang brand barium sulfate (superfine) is made by advanced physical process with special modification,performance is superior. Barium sulfate (special-chip)

اقرأ أكثر

Barium Sulfate - an overview | ScienceDirect Topics

Barium sulfate is used to identify the teeth from the diagnostic wax-up in a 20% BaSO4 solution. If a soft tissue (flapless surgery) template is to be made, teeth are ideally identified with a 20% BaSO 4 solution, and the base (soft tissue) uses a 10% mix. This allows for differentiation of the teeth from the soft tissue.

اقرأ أكثر

DE10005685A1 - Barium sulfate, process for its preparation ...

barium sulfate barium sulfate organic solution Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Ceased Application number DE2000105685 Other languages German (de) Inventor

اقرأ أكثر

Barium Sulfate Oral Reviews and User Ratings ...

Overall rating 2.3. Effectiveness. Ease of Use. Satisfaction. I had to drink 3 bottles of the Barium Sulfate for an MRI of my abdomen and pelvis. This stuff was AWFUL. My test was supposed to take ...

اقرأ أكثر

Barium Sulfate Scale - Chemical Contaminant Removal

Once formed on the equipment surfaces, barium sulfate scale is extremely difficult to remove. Accumulated solid layers of impermeable scale can line tubing and are less easily removed. Sometimes, tar-like or waxy coatings of hydrocarbons protect the scale from chemical treatment. Chemical scale removal is often the first, and lowest cost ...

اقرأ أكثر

Barium Sulfate - an overview | ScienceDirect Topics

Barium sulfate is a soft crystalline solid. It is a rhombic crystal. The pure salt is white but the color of the mineral "barite" can vary between red, yellow, gray or green, depending on impurities. Its density is 4.50 g/cm 3 and its refractive index is 1.64. It melts around 1580 °C but decomposes above 1600 °C.

اقرأ أكثر

Facts About Barium | Live Science

Barium sulfate absorbs X-rays and appears white on the X-ray film, in contrast to the air and surrounding tissue that appear black. Analysis of the X-ray image from the barium enema enables ...

اقرأ أكثر

PROCESS FOR PRODUCING A BARIUM SULFATE-BASED …

1. A process for producing a barium sulfate-based powder, which comprises reacting barium ions (A) with sulfate ions (B) of sodium sulfate in the presence of one metallic ion species (C) which has further been added thereto, said metallic ion species (C) being selected from the group consisting of lithium ions, sodium ions, potassium ions, magnesium ions, calcium ions, zinc ions, and …

اقرأ أكثر

Barium Sulfate - an overview | ScienceDirect Topics

In barium sulfate molecules, not only do the molecule faces match when stacked, but also the corners interact with each other in a process known as oxygen bonding. The attraction of the oxygen atoms creates an adhesion that makes the barite mass very stable.

اقرأ أكثر

Barium Sulfide - an overview | ScienceDirect Topics

Barium sulfide is separated from impurities by extraction with hot water and filtration. It is obtained as an aqueous solution of 15–30% strength. The commercial product is 80% to 90% BaS. Barium sulfide may also be made by high temperature reduction of barium sulfate with methane.

اقرأ أكثر

Gravimetric Determination of a Soluble Sulfate - Lamp

muffle furnace. The process of ignition oxidizes the filter paper, leaving barium sulfate salt in the crucible. Measurement of the mass of BaSO4 will allow the determination of sulfate in the original unknown sample using known stoichiometry. Materials Needed: 3 porcelain crucibles and lids Barium Chloride solution at (0.25 M)

اقرأ أكثر

BARIUM SULFATE | CAMEO Chemicals | NOAA

Barium sulfate () 15 mg/m3 : 170 mg/m3 : 990 mg/m3 (DOE, 2016) ... Chemical Facility Anti-Terrorism Standards, and the U.S. Occupational Safety and Health Administration's Process Safety Management of Highly Hazardous Chemicals Standard List ...

اقرأ أكثر