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Gallium acetate

From Wikipedia, the free encyclopedia
Gallium acetate
Gallium acetate
Gallium acetate
Names
IUPAC names
Tetra-μ2-acetatodiaquadigallium(III), diacetyloxygallanyl acetategallium(3+) triacetate
Other names
  • Gallium ethanoate
  • Gallium triacetate
  • Gallium(III) acetate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard100.018.106Edit this at Wikidata
EC Number
  • 219-915-3
  • InChI=1S/3C2H4O2.Ga/c3*1-2(3)4;/h3*1H3,(H,3,4);/q;;;+3/p-3
    Key: FYWVTSQYJIPZLW-UHFFFAOYSA-K
  • CC(=O)O[Ga](OC(=O)C)OC(=O)C
Properties
Ga(O2C2H3)3
Molar mass246.85[1]
Appearancewhite crystals
Density1.57 g/cm/3
Melting pointN/A
Boiling point117.1C
Hazards
GHS labelling:
GHS05: CorrosiveGHS07: Exclamation mark
Danger
H314,H335
P261,P280,P304+P340,P305+P351+P338,P405,P501
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
Chemical compound
Acetate anion
The depiction of one of the bonding anions in gallium acetate.

Gallium acetate is asalt composed of agallium atom trication and threeacetate groups asanions where gallium exhibits the +3oxidation state. It has achemical formula of Ga(CH3COO)3 although it can be informally referred to as GaAc becauseAc is an informal symbol for acetate. Gallium is moderatelywater-soluble and decomposes togallium oxide when heated to around 70 °C.[2] Gallium acetate, like other acetate compounds, is a good precursor to ultra-purecompounds,catalysts and nanoscale materials.[2] Gallium acetate is being considered as a substitute in de-icing compounds likecalcium chloride andmagnesium chloride.[3]

Preparation

[edit]

Gallium acetate can be formed using a neutralization reaction (acetic acid reacts withgallium oxide orgallium hydroxide):

6CH3COOH + Ga2O3 → 2Ga(CH3COO)3 + 3H2O
3CH3COOH + Ga(OH)3 → Ga(CH3COO)3 + 3H2O

Gallium can also berefluxed in acetic acid for several weeks to produce gallium acetate.[4]

Applications

[edit]

It can also be used in conjunction withacetylacetonate bis(thiosemicarbazone) to create radiogallium-acetylacetonate bis(thiosemicarbazone) complex. It can be used in tumor imaging.[5]

See also

[edit]

References

[edit]
  1. ^"Gallium acetate".
  2. ^abElements, American."Gallium Acetate".American Elements. Retrieved2022-05-05.
  3. ^"Gallium acetate, 99.9% 2571-06-4 - Manufacturers & Suppliers in India with worldwide shipping".www.ottokemi.com. Retrieved2022-05-05.
  4. ^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.
  5. ^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.
Gallium(−V)
Gallium(I)
Gallium(II)
Gallium(I,III)
Gallium(III)
Organogallium(III) compounds
Acetyl halides and salts of theacetate ion
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