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Thulium(III) chloride 
Summary
Thulium(III) chloride or thulium trichloride is as an inorganic salt 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]
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| Names | |
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| IUPAC name
Thulium(III) chloride
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| Other names
Thulium chloride, thulium trichloride
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| Identifiers | |
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3D model (JSmol)
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| ECHA InfoCard | 100.033.535 |
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CompTox Dashboard (EPA)
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| 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 (ΔfH⦵298) |
966.6 kJ/mol[3] |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
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Irritant |
| GHS labelling:[4] | |
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| Warning | |
| H315, H319, H335 | |
| P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P332+P313, P337+P313, P362, P403+P233, P405, P501 | |
| Related compounds | |
Other anions
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Thulium(III) oxide |
Other cations
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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).
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Infobox references
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ReactionsEdit
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.
ReferencesEdit
- ^ a b
Spencer, James F. (1919). "The Metals of the Rare Earths". New York: Longmans, Green, and Co: 152. Retrieved 2008-06-27.
{{cite journal}}: Cite journal requires|journal=(help) - ^ "Chemistry: Periodic Table: Thulium: compound data (thulium (III) chloride)". WebElements. Archived from the original on 2008-12-01. Retrieved 2008-06-27.
- ^ Perry, Dale L.; Phillips, Sidney L. (1995). Handbook of Inorganic Compounds. CRC Press. p. 512. ISBN 0-8493-8671-3. Retrieved 2008-06-27.
- ^ "Thulium trichloride". pubchem.ncbi.nlm.nih.gov.
- ^ Wells A.F. (1984) Structural Inorganic Chemistry 5th edition Oxford Science Publications ISBN 0-19-855370-6