Ammonium hexafluoroindate

Last updated
Ammonium hexafluoroindate
Names
Other names
Ammonium hexafluoroindate(III)
Identifiers
3D model (JSmol)
  • InChI=1S/6FH.In.3H3N/h6*1H;;3*1H3/q;;;;;;+3;;;/p-3
    Key: FSYGVNPMCCSLOH-UHFFFAOYSA-K
  • [NH4+].[NH4+].[NH4+].F[In-3](F)(F)(F)(F)F
Properties
F6H12InN3
Molar mass 282.925 g·mol−1
Appearancecolorless crystals
Density g/cm3
insoluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Ammonium hexafluoroindate is an inorganic chemical compound with the chemical formula (NH4)3InF6. [1] [2]

Contents

Synthesis

The compound can be obtained by reacting ammonium fluoride and indium bromide in anhydrous methanol, or by reacting ammonium fluoride and indium fluoride in aqueous solution. [3]

Also, a reaction involving indium hydroxide and ammonium fluoride: [4]

In(OH)3 + 3HF + 3NH4F → (NH4)3InF6 + 3H2O

Physical properties

The compound decomposes at 120–170 °C to obtain NH4InF4, and further decomposes to InF3 at 185–300 °C. [5]

Ammonium hexafluoroindiate forms colorless crystals of tetragonal system, space group P4mnc, [6] insoluble in water. [4]

At 80 °C, a phase transition into the cubic phase occurs.

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

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

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<span class="mw-page-title-main">Zirconium tetrafluoride</span> Chemical compound

Zirconium(IV) fluoride describes members of a family inorganic compounds with the formula (ZrF4(H2O)x. All are colorless, diamagnetic solids. Anhydrous Zirconium(IV) fluoride' is a component of ZBLAN fluoride glass.

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

Vanadium(III) fluoride is the chemical compound with the formula VF3. This yellow-green, refractory solid is obtained in a two-step procedure from V2O3. Similar to other transition-metal fluorides (such as MnF2), it exhibits magnetic ordering at low temperatures (e.g. V2F6.4H2O orders below 12 K).

<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.

Indium(III) sulfate (In2(SO4)3) is a sulfate salt of the metal indium. It is a sesquisulfate, meaning that the sulfate group occurs 1⁠1/2⁠ times as much as the metal. It may be formed by the reaction of indium, its oxide, or its carbonate with sulfuric acid. An excess of strong acid is required, otherwise insoluble basic salts are formed. As a solid indium sulfate can be anhydrous, or take the form of a pentahydrate with five water molecules or a nonahydrate with nine molecules of water. Indium sulfate is used in the production of indium or indium containing substances. Indium sulfate also can be found in basic salts, acidic salts or double salts including indium alum.

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

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Difluorophosphate or difluorodioxophosphate or phosphorodifluoridate is an anion with formula PO2F−2. It has a single negative charge and resembles perchlorate and monofluorosulfonate in shape and compounds. These ions are isoelectronic, along with tetrafluoroaluminate, phosphate, orthosilicate, and sulfate. It forms a series of compounds. The ion is toxic to mammals as it causes blockage to iodine uptake in the thyroid. However it is degraded in the body over several hours.

<span class="mw-page-title-main">Europium compounds</span> Chemical compounds

Europium compounds are compounds formed by the lanthanide metal europium (Eu). In these compounds, europium generally exhibits the +3 oxidation state, such as EuCl3, Eu(NO3)3 and Eu(CH3COO)3. Compounds with europium in the +2 oxidation state are also known. The +2 ion of europium is the most stable divalent ion of lanthanide metals in aqueous solution. Many europium compounds fluoresce under ultraviolet light due to the excitation of electrons to higher energy levels. Lipophilic europium complexes often feature acetylacetonate-like ligands, e.g., Eufod.

Erbium compounds are compounds containing the element erbium (Er). These compounds are usually dominated by erbium in the +3 oxidation state, although the +2, +1 and 0 oxidation states have also been reported.

Protactinium compounds are compounds containing the element protactinium. These compounds usually have protactinium in the +5 oxidation state, although these compounds can also exist in the +2, +3 and +4 oxidation states.

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

Dysprosium(III) phosphate is an inorganic compound with the chemical formula DyPO4.

<span class="mw-page-title-main">Indium(I) iodide</span> Chemical compound

Indium monoiodide is a binary inorganic compound of indium metal and iodine with the chemical formula InI.

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

Ammonium hexafluorochromate is an inorganic chemical compound with the chemical formula (NH4)3CrF6.

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

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

<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. ↑ Roberts, John E.; Laubengayer, A. W. (November 1957). "Fluoride Complexes of Indium(III) 1". Journal of the American Chemical Society . 79 (22): 5895–5897. doi:10.1021/ja01579a016. ISSN   0002-7863 . Retrieved 30 August 2024.
  2. ↑ "Ammonium hexafluoroindate(iii)". NIST . Retrieved 30 August 2024.
  3. ↑ Zakalyukin, R. M.; Boltalin, A. I.; Fedorov, P. P. (2001). "Synthesis of ammonium hexafluoroindate". Zhurnal Neorganicheskoi Khimii. 8 (46): 1247–1249. ISSN   0044-457X . Retrieved 30 August 2024.
  4. 1 2 Brauer, Georg (2 December 2012). Handbook of Preparative Inorganic Chemistry V1. Elsevier. p. 229. ISBN   978-0-323-16127-5 . Retrieved 30 August 2024.
  5. ↑ Beck, Lynda K.; Haendler Kugler, Blanca; Haendler, Helmut M. (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. Bibcode:1973JSSCh...8..312B. doi:10.1016/S0022-4596(73)80027-1. S2CID   95324633.
  6. ↑ Donnay, Joseph Désiré Hubert (1973). Crystal Data: Inorganic compounds. National Bureau of Standards. p. 108. Retrieved 30 August 2024.
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