Gallium acetate is a salt composed of a gallium atom trication and three acetate groups as anions where gallium exhibits the +3 oxidation state. It has a chemical formula of Ga(CH3COO)3 although it can be informally referred to as GaAc because Ac is an informal symbol for acetate. Gallium is moderately water-soluble and decomposes to gallium oxide when heated to around 70 °C.[2] Gallium acetate, like other acetate compounds, is a good precursor to ultra-pure compounds, catalysts and nanoscale materials.[2] Gallium acetate is being considered as a substitute in de-icing compounds like calcium chloride and magnesium chloride.[3]
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| Names | |
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| IUPAC names
Tetra-μ2-acetatodiaquadigallium(III), diacetyloxygallanyl acetate
gallium(3+) triacetate
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Other names
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.018.106 |
| EC Number |
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| Ga(O2C2H3)3 | |
| Molar mass | 246.85[1] |
| Appearance | white crystals |
| Density | 1.57 g/cm/3 |
| Melting point | N/A |
| Boiling point | 117.1C |
| Hazards | |
| GHS labelling: | |
 
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| Danger | |
| H314, H335 | |
| P261, P280, P304+P340, P305+P351+P338, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation
editGallium acetate can be formed using a neutralization reaction (acetic acid reacts with gallium oxide or gallium hydroxide):
- 6CH3COOH + Ga2O3 → 2Ga(CH3COO)3 + 3H2O
- 3CH3COOH + Ga(OH)3 → Ga(CH3COO)3 + 3H2O
Gallium can also be refluxed in acetic acid for several weeks to produce gallium acetate.[4]
Applications
editIt can also be used in conjunction with acetylacetonate bis(thiosemicarbazone) to create radiogallium-acetylacetonate bis(thiosemicarbazone) complex. It can be used in tumor imaging.[5]
See also
editReferences
edit- ^ "Gallium acetate".
- ^ a b Elements, American. "Gallium Acetate". American Elements. Retrieved 2022-05-05.
- ^ "Gallium acetate, 99.9% 2571-06-4 - Manufacturers & Suppliers in India with worldwide shipping". www.ottokemi.com. Retrieved 2022-05-05.
- ^ Funk, H.; Paul, A. Chemistry of gallium. II. Reactions between gallium and organic compounds. Zeitschrift für Anorganische und Allgemeine Chemie (1965), 337(3-4), 142-4.
- ^ Jalilian, Amir R.; Yousefnia, Hassan; Garousi, Javad; Novinrouz, Aytak; Rajamand, Amir A.; Shafaee, Kamaledin (2009). "The development of radiogallium-acetylacetonate bis(thiosemicarbazone) complex for tumour imaging". Nuclear Medicine Review. 12 (2): 65–71. ISSN 1644-4345.