What is Barium Iodide?
Barium iodide (Bal2) obtained by the decomposition of the barium by means of metallic sodium. Barium iodide crystallizes in small, colorless needles, which deliquesce slightly, and are very soluble in water. Barium (Gk barys, heavy) is a heavy metal, first isolated by Sir Humphry Davy in England by electrolysis of molten barium salts in 1808. It is prepared by the action of hydroiodic acid on barium hydroxide or barium carbonate solution.
IUPAC name – barium(2+) diiodide
|Molecular Weight/ Molar Mass||391.136 g/mol|
|Boiling Point||2,027 °C|
|Melting Point||711 °C|
Barium Iodide Structure – BaI2
Physical Properties of Barium Iodide – BaI2
|Solubility||Readily soluble in alcohol|
Chemical Properties of Barium Iodide – BaI2
- Barium iodide reacts with potassium bromide forming yellow precipitate of potassium iodide and barium bromide.
KBr + BaI2 → KI + BaBr2
- Barium sulfate is formed when barium iodide is treated with sodium sulfate. The chemical equation is given below.
BaI2 + Na2SO4 → BaSO4 + NaI
Uses of Barium Iodide – BaI2
- Used in the preparation of barium dioxide, but has no medicinal use
- Used in the manufacture of other iodide compounds.
- Used to densify the copper castings described in a paper before the Electrochemical Society.
Frequently Asked Questions
What are the uses of barium iodide?
Barium iodide is widely used in the manufacturing of other important compounds of iodine. This compound is also used to prepare barium dioxide.