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| Names | |
|---|---|
| IUPAC name Tribromoholmium | |
| Systematic IUPAC name Holmium tribromide | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider | |
| ECHA InfoCard | 100.034.099 |
| EC Number |
|
| UNII | |
| UN number | 12141606 |
| |
| |
| Properties | |
| Br3Ho | |
| Molar mass | 404.64[1] |
| Appearance | Yellow Crystalline Solid |
| Density | 4.85 g/cm3[1] |
| Melting point | 919 °C (1,686 °F; 1,192 K)[1] |
| Boiling point | 1,470 °C (2,680 °F; 1,740 K)[2] |
| Will dissolve | |
| logP | 2.53680 |
| Thermochemistry | |
Std enthalpy of formation(ΔfH⦵298) | 50.1 kJ/mol[3] |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards | Irritant to eyes, and skin, and internal organs. |
| GHS labelling: | |
 | |
| Warning | |
| H315,H319,H335[1] | |
| P261,P305+P351+P338[1]P271,P280,P302+P352,P304+P340,P362,P403+P233[4]P405,P501[5] | |
| NFPA 704 (fire diamond) | |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Holmium(III) bromide is a crystalline compound made of oneholmium atom and threebromine atoms. Holmium bromide is a yellow powder at room temperature.[2] Holmium bromide ishygroscopic.[6] Holmium bromide is odorless.[5]
Holmium(III) bromide is formed as a result of the reaction:[7]
Holmium(III) bromide reacts with strong oxidising agents. When involved in a fire, holmium bromide may releasehydrogen bromide, and metal oxide fumes.[5]
