Open AccessSynthesis and Characterization of K2SiF6 Hexafluorosilicate
Author(s) -
Vartika S. Singh,
S. V. Moharil
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1104/1/012004
Subject(s) - alkali metal , characterization (materials science) , precipitation , thermal stability , fabrication , analytical chemistry (journal) , materials science , chemistry , mineralogy , nanotechnology , organic chemistry , physics , medicine , alternative medicine , pathology , meteorology
Hexafluorosilicates such as K 2 SiF 6 (Hieratite) exists in nature as minerals. The common formula is M 2 SiF 6 where M represents alkali ion. All the alkali fluorosilicates including K 2 SiF 6 decomposes in the temperature range of 300 to 700 °C with SiF 4 as residual product. SiF 4 has an important application in the solar cells fabrication industry. Due to low thermal stability, it is difficult to prepare these complex fluorides by the conventional methods. Hence, a one step simple wet-chemical route was adopted. Confirmation of successful precipitation of K 2 SiF 6 during our process of synthesis was done by using various analysis techniques. Results obtained through XRD, EDAX and SEM measurements are reported and discussed here in brief.