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Holmium(III) bromide 
Summary
Holmium(III) bromide is a crystalline compound made of one holmium atom and three bromine atoms. Holmium bromide is a yellow powder at room temperature.[2] Holmium bromide is hygroscopic.[6] Holmium bromide is odorless.[5]
| Names | |
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| IUPAC name
Tribromoholmium
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| Systematic IUPAC name
Holmium tribromide | |
| Identifiers | |
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3D model (JSmol)
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| ChemSpider |
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| ECHA InfoCard | 100.034.099 |
| EC Number |
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PubChem CID
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| UNII |
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| UN number | 12141606 |
CompTox Dashboard (EPA)
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| 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 | |
| log P | 2.53680 |
| Thermochemistry | |
Std enthalpy of
formation (ΔfH⦵298) |
50.1 kJ/mol [3] |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
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Irritant to eyes, and skin, and internal organs. |
| GHS labelling: | |
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| 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 their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Reactions edit
Holmium(III) bromide is formed as a result of the reaction:[7]
- 2 Ho(s) + 3 Br2(g) → 2 HoBr3(s)
Holmium(III) bromide reacts with strong oxidising agents. When involved in a fire, holmium bromide may release hydrogen bromide, and metal oxide fumes.[5]
References edit
- ^ a b c d e "Holmium(III) bromide anhydrous, powder, 99.99% trace metals basis | Sigma-Aldrich". www.sigmaaldrich.com. Retrieved 21 December 2016.
- ^ a b Elements, American. "Holmium Bromide". American Elements. Retrieved 21 December 2016.
- ^ Haynes, William M. (2013). CRC handbook of chemistry and physics : a ready-reference book of chemical and physical data (94th ed.). CRC Press. p. 148. ISBN 9781466571150.
- ^ "Holmium Bromide | ProChem, Inc". prochemonline.com. Retrieved 21 December 2016.
- ^ a b c "Holmium(III) bromide". Fischersci. Retrieved 21 December 2016.
- ^ "HOLMIUM BROMIDE | 13825-76-8". www.chemicalbook.com. Retrieved 21 December 2016.
- ^ Winter, Mark. "Holmium»reactions of elements [WebElements Periodic Table]". www.webelements.com. Retrieved 21 December 2016.