reactivity, barium is never found in nature as a free element. The most common minerals of barium are barite (barium sulfate, BaSO4) and witherite (barium carbonate...

Barium sulfate (or sulphate) is the inorganic compound with the chemical formula BaSO4. It is a white crystalline solid that is odorless and insoluble...

Naturally occurring barium (56Ba) is a mix of six stable isotopes and one very long-lived radioactive primordial isotope, barium-130, identified as being...

Barium chloride is an inorganic compound with the formula BaCl2. It is one of the most common water-soluble salts of barium. Like most other water-soluble...

An upper gastrointestinal series, also called a barium swallow, barium study, or barium meal, is a series of radiographs used to examine the gastrointestinal...

higher than that of barium, again confirming periodic trends; the radium-barium density ratio is comparable to the radium-barium atomic mass ratio, due...

Barium oxide, also known as baria, is a white hygroscopic non-flammable compound with the formula BaO. It has a cubic structure and is used in cathode...

They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). The elements have very similar properties: they are...

compounds of barium. This white granular monohydrate is the usual commercial form. Barium hydroxide can be prepared by dissolving barium oxide (BaO) in...

Barium titanate (BTO) is an inorganic compound with chemical formula BaTiO3. Barium titanate appears white as a powder and is transparent when prepared...

Barium chromate, is a yellow sand like powder with the formula BaCrO4. It is a known oxidizing agent and produces a green flame when heated, a result of...

Barium nitrate is the inorganic compound with the chemical formula Ba(NO3)2. It, like most barium salts, is colorless, toxic, and water-soluble. It burns...

commercial sense, it is one of the most important barium compounds. Barium carbonate is made commercially from barium sulfide by treatment with sodium carbonate...

Barium acetate (Ba(C2H3O2)2) is the salt of barium(II) and acetic acid. Barium acetate is toxic to humans, but it has use in chemistry and manufacturing...

Barium nitrite is a chemical compound, the nitrous acid salt of barium. It has the chemical formula Ba(NO2)2. It is a water-soluble yellow powder. It is...

Barium borate is an inorganic compound, a borate of barium with a chemical formula BaB2O4 or Ba(BO2)2. It is available as a hydrate or dehydrated form...

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...

fluoroscopy. Radiocontrast agents are typically iodine, or more rarely barium sulfate. The contrast agents absorb external X-rays, resulting in decreased...

Barium bromide is the chemical compound with the formula BaBr2. It is ionic and hygroscopic in nature. BaBr2 crystallizes in the lead chloride (cotunnite)...

Yttrium barium copper oxide (YBCO) is a family of crystalline chemical compounds that display high-temperature superconductivity; it includes the first...

Barium sulfate suspension, often simply called barium, is a contrast agent used during X-rays. Specifically it is used to improve visualization of the...

mineral consisting of barium sulfate (BaSO4). Baryte is generally white or colorless, and is the main source of the element barium. The baryte group consists...

Bari (/ˈbɑːri/ BAR-ee; Italian: [ˈbaːri] ; Barese: Bare [ˈbæːrə]; Latin: Barium) is the capital city of the Metropolitan City of Bari and of the Apulia...

Barium sulfide is the inorganic compound with the formula BaS. BaS is the barium compound produced on the largest scale. It is an important precursor to...

did not invent the technique. The actual method (usually referred to as a barium meal test in espionage circles) has been used by intelligence agencies for...

Ramesh Nandan Prasad Barial (Hindi: प्रो॰(डा॰)रमेश नंदन प्रसाद बरियाल; 31 August 1934 – 11 March 2008) was an eminent educationist in India. He retired...

Barium thiocyanate is a colorless water-soluble salt that is very hygroscopic. It is highly toxic to ingestion and irritates the skin. It is also soluble...

Barium hexafluorosilicate is an inorganic chemical compound with the chemical formula BaSiF6. As a salt that is poorly soluble in water, barium hexafluorosilicate...

A double-contrast barium enema is a form of contrast radiography in which x-rays of the colon and rectum are taken using two forms of contrast to make...

Barium sulfite is the inorganic compound with the chemical formula BaSO3. It is a white powder that finds few applications. It is an intermediate in the...