Ammonium hexafluorogallate

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Ammonium hexafluorogallate
Ammonium hexafluorogallate.png
Names
IUPAC name
triazanium;gallium;hexafluoride
Other names
Triammonium hexafluorogallate(3-)
Identifiers
3D model (JSmol)
ChemSpider
PubChem CID
UNII
  • InChI=1S/6FH.Ga.3H3N/h6*1H;;3*1H3/q;;;;;;+3;;;/p-3
    Key: VNTODJFLNIRXQJ-UHFFFAOYSA-K
  • [NH4+].[NH4+].[NH4+].[F-].[F-].[F-].[F-].[F-].[F-].[Ga+3]
Properties
F6GaH12N3
Molar mass 237.830 g·mol−1
Appearancecolorless crystals
Density 2.10 g/cm3
soluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Ammonium hexafluorogallate is an inorganic chemical compound with the chemical formula (NH4)3GaF6. [1] [2]

Contents

Synthesis

A mechanochemical reaction between ammonium fluoride and gallium fluoride trihydrate (GaF3·3H2O) at a ratio of 3:1 produces the compound. [3]

Also, a reaction of gallium(III) hydroxide, HF, and ammonium fluoride. [4]

Ga(OH)3 + 3HF + 3NH4F → (NH)3GaF6 + 3H2O [5]

Physical properties

Ammonium hexafluorogallate occurs in two polymorphic forms: tetragonal at low temperature and cubic at high temperature, with both transforming reversibly. [6]

Colorless crystals, soluble in water. [7]

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<span class="mw-page-title-main">Chromium(III) fluoride</span> Chemical compound

Chromium(III) fluoride is an inorganic compound with the chemical formula CrF3. It forms several hydrates. The compound CrF3 is a green crystalline solid that is insoluble in common solvents, but the hydrates [Cr(H2O)6]F3 (violet) and [Cr(H2O)6]F3·3H2O (green) are soluble in water. The anhydrous form sublimes at 1100–1200 °C.

<span class="mw-page-title-main">Iron(III) fluoride</span> Chemical compound

Iron(III) fluoride, also known as ferric fluoride, are inorganic compounds with the formula FeF3(H2O)x where x = 0 or 3. They are mainly of interest by researchers, unlike the related iron(III) chloride. Anhydrous iron(III) fluoride is white, whereas the hydrated forms are light pink.

<span class="mw-page-title-main">Copper(II) fluoride</span> Chemical compound

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<span class="mw-page-title-main">Cadmium fluoride</span> Chemical compound

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<span class="mw-page-title-main">Scandium fluoride</span> Chemical compound

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<span class="mw-page-title-main">Aluminium fluoride</span> Chemical compound

Aluminium fluoride is an inorganic compound with the formula AlF3. It forms hydrates AlF3·xH2O. Anhydrous AlF3 and its hydrates are all colorless solids. Anhydrous AlF3 is used in the production of aluminium. Several occur as minerals.

<span class="mw-page-title-main">Gallium(III) fluoride</span> Chemical compound

Gallium(III) fluoride (GaF3) is a chemical compound. It is a white solid that melts under pressure above 1000 °C but sublimes around 950 °C. It has the FeF3 structure where the gallium atoms are 6-coordinate. GaF3 can be prepared by reacting F2 or HF with Ga2O3 or by thermal decomposition of (NH4)3GaF6. GaF3 is virtually insoluble in water. Solutions of GaF3 in HF can be evaporated to form the trihydrate, GaF3·3H2O, which on heating gives a hydrated form of GaF2(OH). Gallium(III) fluoride reacts with mineral acids to form hydrofluoric acid.

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Molybdenum hexafluoride, also molybdenum(VI) fluoride, is the inorganic compound with the formula MoF6. It is the highest fluoride of molybdenum. It is a colourless solid and melts just below room temperature and boils in 34 °C. It is one of the seventeen known binary hexafluorides.

Chromium pentafluoride is the inorganic compound with the chemical formula CrF5. It is a red volatile solid that melts at 34 °C. It is the highest known chromium fluoride, since the hypothetical chromium hexafluoride has not yet been synthesized.

<span class="mw-page-title-main">Gallium(III) sulfide</span> Chemical compound

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Platinum tetrafluoride is the inorganic compound with the chemical formula PtF
4. In the solid state, the compound features platinum(IV) in octahedral coordination geometry.

The fluoronickelates are a class of chemical compounds containing an anion with nickel at its core, surrounded by fluoride ions which act as ligands. This makes it a fluoroanion. The nickel atom can be in a range of oxidation states from +2, +3 to +4. The hexafluoronickelate(IV)2− ion NiF62− contains nickel in the maximal +4 state, and is in octahedral coordination by the fluoride atoms. It forms a commercially available salt Potassium hexafluoronickelate(IV) K2NiF6. Solid double salts can also contain tetrafluoronickelate NiF4 eg K2NiF4.

Lithium hexafluoroarsenate is an inorganic chemical compound with the chemical formula LiAsF6.

<span class="mw-page-title-main">Potassium hexafluoroaluminate</span> Chemical compound

Potassium hexafluoroaluminate is an inorganic chemical compound with the chemical formula K3AlF6. It naturally occures as the mineral cryolite.

Ammonium hexafluoroferrate is an inorganic chemical compound with the chemical formula (NH4)3FeF6.

Ammonium hexafluoroindate is an inorganic chemical compound with the chemical formula (NH4)3InF6.

<span class="mw-page-title-main">Ammonium hexafluoroantimonate</span> Chemical compound

Ammonium hexafluoroantimonate is an inorganic chemical compound with the chemical formula NH4SbF6.

References

  1. ↑ "NCATS Inxight Drugs — AMMONIUM HEXAFLUOROGALLATE". drugs.ncats.io. Retrieved 31 August 2024.
  2. ↑ Lide, David R. (29 June 2004). CRC Handbook of Chemistry and Physics, 85th Edition. CRC Press. p. 4-41. ISBN   978-0-8493-0485-9 . Retrieved 31 August 2024.
  3. ↑ Lu, Jinfeng; Zhang, Qiwu; Wang, Jun; Saito, Fumio (September 2004). "Mechanochemical Synthesis of Ammonium Hexafluorogallate". Journal of the American Ceramic Society . 87 (9): 1814–1816. doi:10.1111/j.1551-2916.2004.01814.x. ISSN   0002-7820 . Retrieved 31 August 2024.
  4. ↑ Perry, Dale L. (19 April 2016). Handbook of Inorganic Compounds. CRC Press. p. 25. ISBN   978-1-4398-1462-8 . Retrieved 31 August 2024.
  5. ↑ Brauer, Georg (2 December 2012). Handbook of Preparative Inorganic Chemistry V1. Elsevier. p. 228. ISBN   978-0-323-16127-5 . Retrieved 31 August 2024.
  6. ↑ Beck, Lynda K.; Haendler Kugler, Blanca; Haendler, Helmut M. (1 December 1973). "The thermal decomposition of ammonium hexafluorogallate and ammonium hexafluoroindate. New crystalline forms of gallium fluoride and indium fluoride". Journal of Solid State Chemistry . 8 (4): 312–317. doi:10.1016/S0022-4596(73)80027-1. ISSN   0022-4596 . Retrieved 31 August 2024.
  7. ↑ Grushko, Ya M. (10 September 2020). Handbook of Dangerous Properties of Inorganic And Organic Substances in Industrial Wastes. CRC Press. p. 79. ISBN   978-1-000-11164-4 . Retrieved 31 August 2024.
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