Choline hydroxide
| Names | |
|---|---|
| IUPAC name
Choline hydroxide | |
| Systematic IUPAC name
2-Hydroxy-N,N,N-trimethylethanaminium hydroxide | |
Other names
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| Identifiers | |
3D model (JSmol) |
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| Abbreviations | ChOH |
| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.004.206 |
| EC Number |
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PubChem CID |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| [(CH3)3NCH2CH2OH]+OH− | |
| Molar mass | 121.180 g·mol−1 |
| Appearance | Viscous colorless deliquescent liquid or white granular powder |
| Odor | Unpleasant, like trimethylamine |
| Density | 1.073 g/cm3 at 25 °C (46% water solution by weight) |
| Very soluble | |
| Solubility | 48-50% solution of choline hydroxide in water (by weight) is insoluble in toluene. Choline hydroxide
is soluble in ethanol, insoluble in diethyl ether and chloroform. |
Refractive index (nD) |
1.4304 (46% water solution by weight) |
| Structure | |
| Tetrahedral at the nitrogen atom | |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards |
Corrosive |
| GHS labelling: | |
| Danger | |
| H314, H335, H372 | |
| P260, P261, P264, P270, P271, P280, P301+P330+P331, P302, P304+P340, P305, P316, P317, P319, P321, P338, P361, P363, P403+P233, P405, P501 | |
| NFPA 704 (fire diamond) | |
| Flash point | 92 °F (33 °C) |
| 380 °C (716 °F) | |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
21.4 mg/kg (mouse, intravenous) |
| Related compounds | |
Other anions |
Choline chloride |
Other cations |
Tetraethylammonium hydroxide |
Related compounds |
Choline |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Choline hydroxide is an organic compound with the chemical formula [(CH3)3NCH2CH2OH]+OH−. It is also known as choline base. It is used as solutions in water or alcohols, which are colorless and very alkaline.