Thulium(III) chloride

Thulium(III) chloride or thulium trichloride is the chemical compound composed of thulium and chlorine with the formula TmCl3. It forms yellow crystals. Thulium(III) chloride has the YCl3 (AlCl3) layer structure with octahedral thulium ions.[5]

Thulium(III) chloride
Names
IUPAC name
Thulium(III) chloride
Other names
Thulium chloride, thulium trichloride
Identifiers
3D model (JSmol)
ECHA InfoCard 100.033.535
EC Number
  • 236-904-9
RTECS number
  • XP0525000
UNII
Properties
TmCl3
Molar mass 275.292 g/mol
Appearance yellow crystals
Density 3.98 g/cm3
Melting point 824 °C (1,515 °F; 1,097 K)
Boiling point 1,490 °C (2,710 °F; 1,760 K)
heptahydrate: very soluble
Solubility heptahydrate: very soluble in ethanol[1]
Structure
Monoclinic, mS16
C12/m1, No. 12
6[2]
Thermochemistry
Std enthalpy of
formation fH298)
966.6 kJ/mol[3]
Hazards
Main hazards Xi (Irritant)
S-phrases (outdated) S26, S36[4]
Related compounds
Other anions
Thulium(III) oxide
Other cations
Erbium(III) chloride
Ytterbium(III) chloride
Thulium(II) chloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

Reactions

The hydrated form of thulium(III) chloride can be obtained by adding thulium(III) oxide to concentrated hydrochloric acid.[1] Thulium(III) chloride reacts with strong bases to make thulium(III) oxide.

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References

  1. Spencer, James F. (1919). "The Metals of the Rare Earths". New York: Longmans, Green, and Co: 152. Retrieved 2008-06-27. Cite journal requires |journal= (help)
  2. "Chemistry: Periodic Table: Thulium: compound data (thulium (III) chloride)". WebElements. Archived from the original on 2008-12-01. Retrieved 2008-06-27.
  3. Perry, Dale L.; Phillips, Sidney L. (1995). Handbook of Inorganic Compounds. CRC Press. p. 512. ISBN 0-8493-8671-3. Retrieved 2008-06-27.
  4. "439649 Thulium(III) chloride anhydrous, powder, 99.99% trace metals basis". Sigma-Aldrich. Retrieved 2008-06-27.
  5. Wells A.F. (1984) Structural Inorganic Chemistry 5th edition Oxford Science Publications ISBN 0-19-855370-6


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