Beryllium hydroxide
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| Beryllium hydroxide | |
|---|---|
| Image:Beryllium hydroxide.jpg | |
| General | |
| Systematic name | Beryllium hydroxide |
| Other names | Hydrated beryllia |
| Molecular formula | Be(OH)2 |
| Molar mass | 43.02678 g/mol |
| Appearance | White solid. |
| CAS number | [13327-32-7] [1] [20768-68-7] [2] |
| Properties | |
| Density and phase | ? g/cm3, solid. |
| Solubility in water | Insoluble |
| Melting point | Decomposes at 1000°C. |
| Boiling point | NA |
| Basicity (pKb) | ? |
| Structure | |
| Molecular shape | ? |
| Coordination geometry |
? |
| Crystal structure | ? |
| Dipole moment | ? D |
| Hazards | |
| MSDS | External MSDS |
| Main hazards | Carcinogenic. |
| NFPA 704 | |
| Flash point | ?°C |
| R/S statement | R: ? S: ? |
| RTECS number | ? |
| Supplementary data page | |
| Structure and properties |
n, εr, etc. |
| Thermodynamic data |
Phase behaviour Solid, liquid, gas |
| Spectral data | UV, IR, NMR, MS |
| Related compounds | |
| Other anions | ? |
| Other cations | ? |
| Related compounds | Aluminium oxide magnesium hydroxide |
| Except where noted otherwise, data are given for materials in their standard state (at 25°C, 100 kPa) Infobox disclaimer and references |
|
Beryllium hydroxide is one of the few amphoteric metal hydroxides, capable of being an acid or a base under different conditions. For example, it dissolves in sodium hydroxide solution to give a colourless solution of sodium beryllate:
2NaOH(aq) + Be(OH)2(s) → Na2Be(OH)4(aq)
With acids, beryllium hydroxide acts as a typical base, and beryllium salts are formed.
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