Hexaperchloratoaluminate

The hexaperchloratoaluminate ion is a triple negative complex of perchlorate with aluminium. It is related to hexanitratoaluminate and tetraperchloratoaluminate all of which are highly oxidising energetic materials.^[1]

Solid materials that have been produced in this series of hexaperchloratoaluminate salts are lithium hexaperchloratoaluminate, ammoniumhexaperchloratoaluminate, tetramethylammonium hexaperchloratoaluminate, and trinitroniumhexaperchloratoaluminate .^[1]

Preparation

The hexaperchloratoaluminates can be prepared in liquid sulfur dioxide at -10° from aluminium trichloride combining with various perchlorates.^[1]

3NO₂ClO₄ + 3Li₃ClO₄ + AlCl₃ → 3NO₂Cl + Li₃Al(CLO₄)₆^[1]

3NO₂ClO₄ + 3(NH₄)ClO₄ + AlCl₃ → 3NO₂Cl + (NH₄)₃Al(CLO₄)₆^[1]

6NO₂ClO₄ + AlCl₃ → 3NO₂Cl + (NO₂)₃Al(CLO₄)₆^[1] ^[1] Aluminium nitrate can be heated at 125°C with nitrosonium or nitronium perchlorate to yield hexaperchloratoaluminates.

10-14NOClO₄ + Al(NO₃)₃ → 3NO₂Cl + (NO₂)₃Al(CLO₄)₆^[1]

6-10NO₂ClO₄ + Al(NO₃)₃ → 3NO₂Cl + (NO₂)₃Al(CLO₄)₆^[1]

3NO₂ClO₄ + 3K₃ClO₄ + AlCl₃ → 3NO₂Cl + K₃Al(CLO₄)₆^[1]

potassium hexaperchloratoaluminate may or may not exist^[1]

hydrazinium hexaperchloratoaluminate can only be made in an impure form with

3NO₂ClO₄ + 3(NH₂H₅)ClO₄ + AlCl₃ → 3NO₂Cl + (NH₂H₅)₃Al(CLO₄)₆^[1]

Guanidinium hexaperchloratoaluminate can be made via: 3NO₂ClO₄ + 3C(NH₂)₃ClO₄ + AlCl₃ → 3NO₂Cl + (C(NH₂)₃)₃Al(CLO₄)₆^[1]

References

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Guibert, C. R.; A. D. McElroy (10 Feb 1964). "Annual Report Studies of Complex Perchlortes". Callery Chemical Company. pp. 5–7. Retrieved 3 October 2014.

[Guibert-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Guibert, C. R.; A. D. McElroy (10 Feb 1964). "Annual Report Studies of Complex Perchlortes". Callery Chemical Company. pp. 5–7. Retrieved 3 October 2014.

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