0
Barium
Barium is a chemical element with the atomic number 56 and the symbol Ba. It has a high reactivity content and is never found freely in nature.
432 Questions
What is the formula mass of barium flouride?
The formula mass of barium fluoride (BaF2) is calculated by adding the atomic masses of each element in the compound. Barium has an atomic mass of 137.33 g/mol, and fluorine has an atomic mass of 18.998 g/mol. Multiplying the atomic mass of barium by 1 and the atomic mass of fluorine by 2 (because there are two fluorine atoms in the compound) and adding them together gives a formula mass of 175.33 g/mol.
Where is barium in the reactivity series?
Barium is a more reactive metal and is located near the bottom of the reactivity series. It will react vigorously with water to form barium hydroxide and hydrogen gas.
Is barium hydroxide a covalent compound?
No, barium hydroxide is an ionic compound, not a covalent compound. It is composed of barium cations and hydroxide anions, which are held together by ionic bonds formed through the transfer of electrons.
Is barium sulphate strong electrolyte?
No, barium sulfate is considered to be a weak electrolyte because only a small amount of it dissociates into ions in solution, leading to a low electrical conductivity. This means that the majority of barium sulfate remains in its solid form rather than as free ions in solution.
Is barium selenide soluble in water?
Barium selenide is not soluble in water as it is an insoluble compound. When placed in water, it will not dissolve and instead form a suspension or precipitate.
Is barium higher than strontium?
Yes, barium has a higher atomic number and greater atomic mass than strontium. Therefore, barium is higher than strontium on the periodic table.
What is the ionic compound for barium and bromine?
The ionic compound formed from barium and bromine is barium bromide, with the chemical formula BaBr2. In this compound, barium has a 2+ charge and bromine has a 1- charge, leading to the need for two bromine ions to balance the charge of one barium ion.
What is the formula for barium periodate?
The chemical formula for barium periodate is Ba(IO4)2. It is composed of one barium ion (Ba2+) and two periodate ions (IO4-).
What is the freezing point for barium?
Being a metallic element, not sure it would "freeze." Sorry! But.....
It's boiling point is 1640 ËšC
It's melting point is 725 ËšC
Always be sure to remember not to measure temperature using Fahrenheit in science. The unit of temperature measurement for science is Celsius!
What products are made out of barium?
Barium is commonly used in the production of radiographic contrast agents for medical imaging, as well as in the manufacturing of ceramic materials, glass, and various types of electronic devices. It is also used in the petroleum industry for drilling fluid weighting agents.
What is the correct formula for barium cholrate?
The correct formula for barium chlorate is Ba(ClO3)2.
Does barium form barium peroxide or barium oxide?
Barium can form both barium peroxide (BaO2) and barium oxide (BaO) depending on the conditions. Barium peroxide is formed when barium reacts with oxygen in excess. Barium oxide is commonly formed when barium reacts with oxygen in limited supply or at high temperatures.
Barium is a soft, silvery metal that is malleable. It can be easily shaped and molded into different forms without breaking.
Barium is not typically used in paint. It is more commonly used in industries like oil and gas, electronics, and healthcare.
Is there a big amount of barium?
Barium is not abundant in the Earth's crust compared to other elements, but it is still considered relatively common. In nature, barium is often found in minerals such as barite (barium sulfate) and witherite (barium carbonate). Commercially, barium is used in various industries, including in the production of drilling muds, pigments, and glass.
What is barium sulfate used for?
Catalyst support
Barium sulfate is a low surface area material used as a support for selectively hydrogenating functional groups sensitive to overreduction. With a low surface area, the contact time of the substrate with the catalyst is shorter. A supported palladium catalyst on barium sulfate, and doped (poisoned) with quinoline hydrogenates alkynes into cis-alkenes. Alkenes are liable to be hydrogenated further into alkanes, which reaction the special support and poison prevent.
Radiocontrast agent
Barium sulfate is frequently used clinically as a radiocontrast agent for X-ray imaging and other diagnostic procedures. It is most often used in imaging of the GI tract during what is colloquially known as a 'barium meal'.
It is administered, orally or by enema, as a suspension of fine particles in an aqueous solution (often with sweetening agents added). Although barium is a heavy metal, and its water-soluble compounds are often highly toxic, the extremely low solubility of barium sulfate protects the patient from absorbing harmful amounts of the metal. Barium sulfate is also readily removed from the body, unlike Thorotrast, which it replaced. Due to the relatively high atomic number (Z = 56) of barium, its compounds absorb X-rays more strongly than compounds derived from lighter nuclei.
Pigment
Barium sulfate mixtures are used as white pigment for paints. In oil paint, barium sulfate is almost transparent,and is used as a filler or to modify consistency. One major manufacturer of artists' oil paint sells "permanent white" that contains a mixture of titanium white pigment and barium sulfate. Barium sulfate itself is called blanc fixe (French for "permanent white"). The combination of barium sulfate and zinc sulfide (ZnS) is called lithopone.
Pyrotechnics
Barium sulfate is commonly used as a component of "strobe" pyrotechnic compositions.
Barium sulfate is also used as a high temperature oxidizer in certain pyrotechnic formulas, as barium compounds emit a green light when burned. Barium nitrate is more common in green pyrotechnic formulas, as it contains an oxidizer while still producing green colored light.
Other uses
Barium sulfate is used as a filler in plastics and as a component of oil well drilling fluid to increase the density. It is also used in Episal salt, brake linings, anacoustic foams, powder coatings, and root canal filling.
Barium sulfate is also used during the procedure of the soil pH test. In this test it is used so that it precipitates out any particles (usually clay particles) which would otherwise 'cloud' solution preventing one from seeing the colour of the pH indicator i.e. the result of the test.
In colorimetry barium sulfate is used as a near-perfect diffuser when measuring light sources.
In photography it is used as a coating for certain photographic papers.
In metal casting, the moulds used are often coated with barium sulfate in order to prevent the molten metal from bonding with the mould.
What is the difference between a barium meal and a barium swallow?
Both a barium swallow and a barium meal test involve you swallowing a liquid suspension of barium sulphate before a series of X-rays are taken of your upper digestive tract. In a barium swallow test, X-ray images are taken of your pharynx (throat) and your oesophagus (the passageway that connects your throat to your stomach; sometimes called your gullet).
In a barium meal test, X-ray images are taken of your stomach and the beginning of your duodenum (the beginning of your small intestine, the passageway that takes food away from your stomach). A barium meal test is often performed straight after a barium swallow test.
Barium is a naturally occurring element that appears white on X-ray. In these tests, the barium is given as a cup of flavoured drink - like a milkshake. When swallowed, barium coats the walls of the digestive tract, which allows the shape of your upper digestive tract to be outlined on an X-ray. Without the barium your upper digestive tract would be barely visible on X-ray.
What happens when barium reacts with fluorine?
When barium reacts with fluorine, barium fluoride is formed. This reaction is highly exothermic, meaning it releases a lot of energy. Barium fluoride is a white, crystalline solid compound that is insoluble in water.
No, barium chloride is not a hydrate. It is a compound composed of barium and chlorine ions and does not contain water molecules in its structure.
What is the use of barium in therapeutics enema?
Barium is opaque on X Ray, so it is used as a 'contrast medium'.
Barium enemas are given before x-rays of the bowel so that abnormalities can be seen and diagnosed. Barium enemas are only one diagnostic tool a doctor will use to diagnose a bowel problem.
What is the valence number of Barium?
Look on the periodic table of elements. Barium is in the 2nd column. All elements in the 2nd column have a charge (valence Number) of +2. The have 2 electrons in their outer shell.
Barium is important because it has various applications, such as in the medical field for X-ray imaging, in the production of certain types of glass, and as a component in some fireworks to create green colors. Additionally, barium compounds are used in the manufacturing of paints, ceramics, and electronics.
Barium has seven isotopes, with atomic masses ranging from 130 to 138. The most abundant isotope of barium is Barium-138, making up about 71% of naturally occurring barium. Barium-137 is a radioactive isotope with a half-life of about 2.5 minutes.
