Studies of thermal decomposition of (NH4)2Fe(SO4)2·6H2O |
| |
| Authors: | I Heilmann JM Knudsen NB Olsen B Buras J Staun Olsen |
| |
| Institution: | Physics Laboratory I. University of Copenhagen, Copenhagen, Denmark;Physics Laboratory II. University of Copenhagen, Copenhagen, Denmark |
| |
| Abstract: | Thermal decomposition products of the Mohr salt (NH4)2Fe(SO4)2·6H2O have been studied and identified using the Mössbauer effect, X-ray diffraction, infrared spectroscopy, and the gravimetric and thermal differential methods. It has been found that the Mohr salt heated for 96 hr. in air at 520K changes to a single substance identified as NH4Fe(SO4)2 with a single Mössbauer line (width 0.30 mm/sec; isomeric shift 0.30 mm/sec). When the Mohr salt is heated for 1 hr. in air at 770 K it changes to Fe2(SO4)3 with a single Mössbauer line (width 0.33 mm/sec; isomeric shift 0.31 mm/sec) strikingly similar to line of NH4Fe(SO4)2. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
