Ytterbium(III) iodide is one of

ytterbium Ytterbium is a chemical element; it has symbol Yb and atomic number 70. It is a metal, the fourteenth and penultimate element in the lanthanide series, which is the basis of the relative stability of its +2 oxidation state. Like the other lanthani ...

iodide An iodide ion is I−. Compounds with iodine in formal oxidation state −1 are called iodides. In everyday life, iodide is most commonly encountered as a component of iodized salt, which many governments mandate. Worldwide, iodine deficiency ...

s, with the

chemical formula A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as pare ...

of YbI₃.

Preparation

Ytterbium(III) iodide can be prepared by reacting metallic ytterbium with

iodine Iodine is a chemical element; it has symbol I and atomic number 53. The heaviest of the stable halogens, it exists at standard conditions as a semi-lustrous, non-metallic solid that melts to form a deep violet liquid at , and boils to a vi ...

at 500°C with a 30 atm pressure: : 2 Yb + 3 I₂ → 2 YbI₃

Ytterbium(III) oxide Ytterbium(III) oxide is the chemical compound with the formula Yb2O3. It is one of the more commonly encountered compounds of ytterbium. It occurs naturally in trace amounts in the mineral gadolinite. It was first isolated from this in 1878 by J ...

ytterbium(III) hydroxide Ytterbium(III) hydroxide is an inorganic compound with the chemical formula Yb(OH)3. Chemical properties Ytterbium(III) hydroxide dissolves in acid to form a ytterbium salt: : Ytterbium(III) hydroxide is decomposed by heat, first forming Yb ...

or ytterbium(III) carbonate can react with

hydroiodic acid Hydroiodic acid (or hydriodic acid) is a colorless liquid. It is an aqueous solution of hydrogen iodide with the chemical formula . It is a strong acid, in which hydrogen iodide is ionized completely in an aqueous solution. Concentrated aqueous ...

to obtain ytterbium(III) iodide in

aqueous solution An aqueous solution is a solution in which the solvent is water. It is mostly shown in chemical equations by appending (aq) to the relevant chemical formula. For example, a solution of table salt, also known as sodium chloride (NaCl), in water ...

: : Yb₂O₃ + 6 HI → 2 YbI₃ + 3 H₂O : Yb(OH)₃ + 3 HI → YbI₃ + 3 H₂O : Yb₂(CO₃)₃ + 6 HI → 2 YbI₃ + 3 H₂O + 3 CO₂ The ytterbium(III) iodide hydrate crystallized from the solution can be heated with

ammonium iodide Ammonium iodide is the inorganic compound with the formula NH4I. A white solid. It is an ionic compound, although impure samples appear yellow. This salt consists of ammonium cation and an iodide anion.Holleman, A. F.; Wiberg, E. ''Inorganic Chemis ...

to obtain the anhydrous form.

Reactions

Ytterbium(III) iodide decomposes to

ytterbium(II) iodide Ytterbium(II) iodide is an iodide of ytterbium, with the chemical formula of YbI2. It is a yellow solid. Preparation Ytterbium(II) iodide can be prepared by heating ytterbium(III) iodide: :\mathrm It can also be prepared by reacting metalli ...

upon heating: :2 YbI₃ → 2 YbI₂ + I₂

References

{{Lanthanide halides Ytterbium(III) compounds Iodides Lanthanide halides