13859-62-6Relevant articles and documents
Haendler, H. M.,Wheeler, C. M.,Robinson, D. W.
, p. 2352 - 2353 (1952)
Thermal behavior of ammonium-bearing zirconium and hafnium hydrofluoride fluoro complexes
Antokhina,Savchenko,Merkulov,Kaidalova,Polishchuk
, p. 642 - 644 (2008/10/09)
Compounds (NH4)4MA3F17 ·2HF (M = Li, Na; A = Zr, Hf) were studied using differential thermal analysis (DTA) and X-ray powder diffraction. It was found that the fluoro complexes studied are dehydrofluorinated in the temperature range 120-230°C, which results in their decomposition and the formation of ammonium- and sodium-(lithium)-bearing fluoro complexes. Copyright
Synthesis and crystal structure of (NH4)ZrF5 and (NH4)HfF5 by oxidation of zirconium and hafnium with (NH4)HF2
Plitzko, Christian,Meyer, Gerd
, p. 169 - 170 (2008/10/09)
Colourless single crystals of NH4ZrF5 (1) and NH4HfF5 (2) are obtained by reaction of the respective metal powders with NH4HF2 (4 weeks) in sealed Monel metal containers at 450°C. They crystallize with the monoclinic space group P21/c with (1/2) a = 778.16(14)/786.35(12), b = 790.75(9)/786.64(8), c = 792.44(12)/786.01(12), β = 119.177(12)/ 119.828(10) isotypic to TlZrF5.