• Source: Ammonium hexafluoroarsenate

Ammonium hexafluoroarsenate is an inorganic chemical compound with the chemical formula NH4AsF6.




Synthesis


Arsenic pentoxide is mixed with an excess of ammonium fluoride; the mixture is fused to produce ammonium hexafluoroarsenate:

AsF5 + NH4F → NH4AsF6
Also, reaction of arsenic trifluoride, hydrofluoric acid, and ammonia:

AsF3 + HF + NH4 → NH4AsF6
Treatment of hexafluoroarsenic acid and ammonia:

HAsF6 + NH3 → NH4AsF6




Physical properties


Ammonium hexafluoroarsenate crystallizes rhombohedral with the KOsF6 structure type, with parameters: a = 7.459(3) Å, c = 7.543(3) Å (at 200 K), Z = 3, unit cell volume 363.4 Å3, space group R3 (No. 148).




References

Kata Kunci Pencarian:

• Bahan peledak
• Ammonium hexafluoroarsenate
• Hexafluoroarsenate
• Sodium hexafluoroarsenate
• Lithium hexafluoroarsenate
• Potassium hexafluoroarsenate
• Explosive
• Nitrogen pentafluoride
• Nitronium ion
• Inorganic nonaqueous solvent
• Tetrafluoroammonium