Barium bromide Formula

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What is Barium bromide?

BaBr2 is an important chemical compound with the chemical name Barium bromide. It is also called Barium (2+) dibromide or Barium bromide anhydrous. It appears as a white solid which is soluble in water and is toxic in aqueous form.

Barium (2+) dibromide, crystallises to lead chloride motifs resulting in white, deliquescent, orthorhombic crystals. In its aqueous form, it acts like a simple salt. It reacts with the sulphate ion of sulpuric acid (H2SO4) to give barium sulphate (BaSO4) precipitates.

BaBr2(aq) + SO42− → BaSO4(s) + 2 Br(aq)

Structure of Barium bromide – BaBr2

The exact mass of barium bromide is 297.74 g/mol and the monoisotopic mass is 297.742 g/mol. The number of hydrogen bond donors equals to zero whereas the number of hydrogen bond acceptors equals to 2. The compound is canonicalised and has three covalently bonded units.

Properties of Barium bromide – BaBr2

BaBr2Barium bromide
Molecular weight of BaBr2297.14 g/mol
Density of Barium bromide4.78 g/cm3 (anhydrous)
Boiling point of Barium bromide1,835 °C
Melting Point of Barium bromide857 °C

Production of Barium bromide

BaBr2 can be prepared from barium carbonate or barium sulphide by reacting with hydrobromic acid (HBr) to produce hydrated barium bromide. The reaction is as follows:

BaS + 2HBr → BaBr2 + H2S

BaCO3 + 2HBr → BaBr2 + CO2 + H2O

Barium (2+) dibromide can be crystallised out from the solution in its dihydrate form. On heating at around 120 °C, BaBr2·2H2O gives the anhydrous form.

Uses of Barium bromide- BaBr2

  • Barium bromide is used as a precursor in chemicals.
  • Used in photography.
  • It was used in a process called fractional crystallisation to purify radium.
  • Used in the manufacturing of other bromides.
  • Used in the production of phosphors.

Health hazards of Barium bromide- BaBr2

Barium bromide anhydrous along with a few other water-soluble barium salts, is considered toxic and when swallowed causes severe poisoning.

Derivation of Barium Bromide Formula

The barium bromide formula is also called as barium (2+) dibromide formula. Barium bromide acts as a simple salt when it is in aqueous form. Moreover, this salt crystallizes in lead chloride motif to result in the formation of white crystals that are deliquescent orthorhombic.

Most noteworthy, the chemical or molecular formula of barium bromide is BaBr2. One can synthesize barium (2+) dibromide from barium sulfide or barium carbonate by reacting it with hydrochloric acid. This reaction results in the formation of hydrated barium bromide.

Frequently Asked Questions- FAQs


1. What is barium bromide used for?

Barium bromide was used in a process called fractional crystallisation to purify radium. Now it is used as a precursor in chemicals, Used in photography, and manufacturing of other bromides.


2. What kind of bond is barium bromide?

Barium bromide is an ionic compound. Barium loses two electrons to form Ba2+ cation and each bromine accepts one electron to form Br.


3. Does barium bromide dissociate in water?

Barium bromide is a polar compound. It dissolves well in water and is toxic. It is dissociated by water to form Ba2+ and Br ions.


4. How does barium bromide form?

Barium bromide is prepared by treating barium sulphide or barium carbonate with hydrobromic acid.


5. What state of matter is barium bromide?

Barium bromide appears as a white solid which is soluble in water.

Question- What is Barium bromide and what is barium bromide formula?

Answer- Barium bromide is a bromide of barium and bromine that acts as a simple salt in aqueous form. The formula of barium bromide is BaBr2.

What is the formula for barium bromide?


The molecular or chemical formula of Barium bromide is BaBr2 (anhydrous).

What is the name of BaBr2?

Barium bromide

BaBr2 is an important chemical compound with the chemical name Barium bromide. It is also called Barium (2+) dibromide or Barium bromide anhydrous. It appears as a white solid which is soluble in water and is toxic in aqueous form.

Why is BaBr2 ionic?

BaBr2 would be the most ionic because it has the greatest electronegativity. Since electronegativity decreases as we go down a period, and Ba is lower down than Br on the periodic table, this compound would be very electronegative.

Is BaBr2 a molecular compound?

Answer and Explanation: A. The name for this ionic compound is barium bromide. This formula represents an ionic compound.

Is BaBr2 neutral?

Barium bromide is the salt of a strong acid (hydrobromic acid) and a strong base (barium hydroxide), making it a neutral salt.

What type of bond is BaBr2?


BaBr2 compound contains three units that are bonded covalently.

Is BaBr2 a precipitate?

In aqueous solution BaBr2 behaves as a simple salt. Solutions of barium bromide reacts with the sulfate salts to produce a solid precipitate of barium sulfate.

Is BaBr2 a basic salt?

By the combination of a strong base {Ba(OH)2} and a strong acid (HBr) BaBr2formed. When a strong base and a strong acid mixes, it produces a neutral salt. Thus, the BaBr2is a neutral salt.

What is the Colour of BaBr2 solution?

BaBr2 in aqueous solution gives yellow ppt with K2CrO4 as well as with AgNO3 .

What is the electrolysis of BaBr2?

In solution, barium bromide, BaBr₂, forms mobile ions Ba2+ and Br-. In solution, these ions are completely mobile and can be electrolyzed. The products from the electrolysis of barium are hydrogen gas, bromine gas, and barium hydroxide. Barium solid is not formed because barium is more reactive than hydrogen.

Can you mix bromine and barium?

Since Barium is a metal and Bromine is a non-metal, they combine to form an ionic bond. Barium forms as cation. and Bromine forms an anion both combine to form Barium bromide having the chemical formula. It is a white solid also known as Barium dibromide or anhydrous Barium bromide.

Is BaCl2 soluble in water?

Barium Chloride is the inorganic compound with the formula BaCl2. It is one of the most common water-soluble salts of barium.

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