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Updating {{chembox}} (no changed fields - added verified revid - updated 'UNII_Ref', 'ChemSpiderID_Ref', 'StdInChI_Ref', 'StdInChIKey_Ref') per Chem/Drugbox validation (report [[Wikipedia_talk:Wi
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{{orphan|date=September 2010}}

{{Chembox
{{Chembox
| Verifiedfields = changed
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| verifiedrevid = 399518010
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| ImageFile =
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| verifiedrevid = 476995911
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| ImageSize =
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| ImageFile = (NH4)3AlF6.png
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| ImageAlt =
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| ImageSize =
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| ImageAlt =
| IUPACName =
| IUPACName =
| PIN =
| PIN =
| OtherNames = Ammonium aluminium fluoride
| OtherNames = Ammonium aluminium fluoride
| Section1 = {{Chembox Identifiers
|Section1={{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 11253835
| ChemSpiderID = 11253835
| InChI = 1/Al.6FH.3H3N/h;6*1H;3*1H3/q+3;;;;;;;;;/p-3/rAlF6.3H3N/c2-1(3,4,5,6)7;;;/h;3*1H3/q-3;;;/p+3
| InChI = 1/Al.6FH.3H3N/h;6*1H;3*1H3/q+3;;;;;;;;;/p-3/rAlF6.3H3N/c2-1(3,4,5,6)7;;;/h;3*1H3/q-3;;;/p+3
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| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = OYHBNKHFKHBTRQ-UHFFFAOYSA-K
| StdInChIKey = OYHBNKHFKHBTRQ-UHFFFAOYSA-K
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo = 7784-19-2
| CASNo = 7784-19-2
| UNII_Ref = {{fdacite|correct|FDA}}
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| PubChem =
| UNII = SW274S3321
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| SMILES = [NH4+].[NH4+].[NH4+].F[Al-3](F)(F)(F)(F)F
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| PubChem = 24565
| EC_number = 264-415-0
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| SMILES = [NH4+].[NH4+].[NH4+].F[Al-3](F)(F)(F)(F)F
}}
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|Section2={{Chembox Properties
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| Formula = (NH<sub>4</sub>)<sub>3</sub>[AlF<sub>6</sub>]
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| MolarMass = 195.09 g/mol
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| Appearance = White crystalline powder
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| Density = 1.78 g/cm<sup>3</sup> at 20&nbsp;°C
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| MeltingPtC = 126.1
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| BoilingPtC = 239.5
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| Solubility = }}
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|Section3={{Chembox Hazards
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| MainHazards = Irritant ('''Xi''')
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| FlashPt =
| AutoignitionPt =
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| NFPA-H = 2
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| NFPA-F = 0
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| NFPA-R = 0
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| NFPA-S =
| GHSPictograms = {{GHS06}}
| GHSSignalWord = Danger
| HPhrases = {{H-phrases|301|311|330|331}}
| PPhrases = {{P-phrases|260|261|264|270|271|280|284|301+310|302+352|304+340|310|311|312|320|321|322|330|361|363|403+233|405|501}}
}}
}}
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| Section2 = {{Chembox Properties
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| Formula = (NH<sub>4</sub>)<sub>3</sub>AlF<sub>6</sub>
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| MolarMass = 195.09 g/mol
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| Appearance = White crystalline powder
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| Density = 1.78 g/cm<sup>3</sup> at 20°C
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| MeltingPt = 126.1°C
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| BoilingPt = 239.5°C
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| Solubility = }}
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| Section3 = {{Chembox Hazards
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| MainHazards = Irritant ('''Xi''')
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| FlashPt =
| Autoignition =
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| NFPA-H = 2
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| NFPA-F = 0
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| NFPA-R = 0
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| NFPA-O =
| RPhrases = {{R23/24/25}}
| SPhrases = {{S26}}, {{S28}}, {{S36/37/39}}, {{S45}}}}
}}
}}


'''Ammonium hexafluoroaluminate''' is an [[inorganic compound]] with the [[chemical formula]] of (NH<sub>4</sub>)<sub>3</sub>[AlF<sub>6</sub>]. It is a white solid. Upon heating, it converts to [[aluminium trifluoride]], a reaction that releases [[hydrogen fluoride]].<ref>{{cite journal |doi=10.1021/cm991195g|title=Preparation and Characterization of Different Phases of Aluminum Trifluoride|year=2000|last1=Alonso|first1 =C.|last2=Morato|first2=A.|last3=Medina|first3=F.|last4=Guirado|first4=F. |last5=Cesteros|first5=Y.|last6=Salagre|first6=P.|last7=Sueiras|first7=J. E.|last8=Terrado|first8=R.|last9=Giralt|first9=A.|journal= Chemistry of Materials|volume=12|issue=4|pages=1148–1155}}</ref> It has also been used as a precursor to [[zeolite]]s.<ref>{{cite journal |doi=10.1016/j.molcata.2005.03.026|title=Post-synthesis alumination of mesoporous silica SBA-15 with high framework aluminum content using ammonium hexafluoroaluminate|year=2005|last1=Kao|first1=Hsien-Ming|last2=Ting|first2=Chun-Chiang|last3=Chao|first3=Shih-Wei|journal=Journal of Molecular Catalysis A: Chemical|volume=235|issue=1–2|pages=200–208}}</ref>
'''Ammonium hexafluoroaluminate''' is a [[chemical compound]] which has the [[chemical formula]] of (NH<sub>4</sub>)<sub>3</sub>AlF<sub>6</sub>. It is a white crystalline powder that is usually stable, but can release [[Corrosive substance|corrosive]] [[hydrogen fluoride]] if it [[Chemical decomposition|decomposes]].



==Preparation==
Ammonium hexafluoroaluminate can be obtained by the reaction of [[ammonium fluoride]] and [[aluminium hydroxide]].<ref name="brauer">{{cite book | author=hrsg. von Georg Brauer. Unter Mitarb. von M. Baudler | title=Handbuch der präparativen anorganischen Chemie / 1. | publisher=Enke | publication-place=Stuttgart | date=1975 | isbn=3-432-02328-6 | oclc=310719485 | language=de|page=239}}</ref>
:<math>\mathrm{6 \ NH_4F + Al(OH)_3 \longrightarrow (NH_4)_3[AlF_6] + 3 \ NH_4OH}</math>


==References==
<references />


{{Ammonium salts}}


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[[Category:Aluminium complexes]]
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[[Category:Fluoro complexes]]
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[[Category:Ammonium compounds]]
[[Category:Fluorometallates]]


{{inorganic-compound-stub}}
{{inorganic-compound-stub}}

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[[Category:Aluminium compounds]]
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[[Category:Fluorides]]
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[[Category:Ammonium compounds]]

Latest revision as of 03:03, 21 December 2022

Ammonium hexafluoroaluminate
Names
Other names
Ammonium aluminium fluoride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.138 Edit this at Wikidata
EC Number
  • 264-415-0
UNII
  • InChI=1S/Al.6FH.3H3N/h;6*1H;3*1H3/q+3;;;;;;;;;/p-3 checkY
    Key: OYHBNKHFKHBTRQ-UHFFFAOYSA-K checkY
  • InChI=1/Al.6FH.3H3N/h;6*1H;3*1H3/q+3;;;;;;;;;/p-3/rAlF6.3H3N/c2-1(3,4,5,6)7;;;/h;3*1H3/q-3;;;/p+3
    Key: OYHBNKHFKHBTRQ-IQDJHOCXAA
  • [NH4+].[NH4+].[NH4+].F[Al-3](F)(F)(F)(F)F
Properties
(NH4)3[AlF6]
Molar mass 195.09 g/mol
Appearance White crystalline powder
Density 1.78 g/cm3 at 20 °C
Melting point 126.1 °C (259.0 °F; 399.2 K)
Boiling point 239.5 °C (463.1 °F; 512.6 K)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Irritant (Xi)
GHS labelling:
GHS06: Toxic
Danger
H301, H311, H330, H331
P260, P261, P264, P270, P271, P280, P284, P301+P310, P302+P352, P304+P340, P310, P311, P312, P320, P321, P322, P330, P361, P363, P403+P233, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
0
0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Ammonium hexafluoroaluminate is an inorganic compound with the chemical formula of (NH4)3[AlF6]. It is a white solid. Upon heating, it converts to aluminium trifluoride, a reaction that releases hydrogen fluoride.[1] It has also been used as a precursor to zeolites.[2]

Preparation[edit]

Ammonium hexafluoroaluminate can be obtained by the reaction of ammonium fluoride and aluminium hydroxide.[3]

References[edit]

  1. ^ Alonso, C.; Morato, A.; Medina, F.; Guirado, F.; Cesteros, Y.; Salagre, P.; Sueiras, J. E.; Terrado, R.; Giralt, A. (2000). "Preparation and Characterization of Different Phases of Aluminum Trifluoride". Chemistry of Materials. 12 (4): 1148–1155. doi:10.1021/cm991195g.
  2. ^ Kao, Hsien-Ming; Ting, Chun-Chiang; Chao, Shih-Wei (2005). "Post-synthesis alumination of mesoporous silica SBA-15 with high framework aluminum content using ammonium hexafluoroaluminate". Journal of Molecular Catalysis A: Chemical. 235 (1–2): 200–208. doi:10.1016/j.molcata.2005.03.026.
  3. ^ hrsg. von Georg Brauer. Unter Mitarb. von M. Baudler (1975). Handbuch der präparativen anorganischen Chemie / 1 (in German). Stuttgart: Enke. p. 239. ISBN 3-432-02328-6. OCLC 310719485.
source: https://en.wikipedia.org/w/index.php?title=Ammonium_hexafluoroaluminate&diff=1128623669&oldid=399519278

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