 ISSN 0235-7216 ISSN 2424-4538 (online) |
2008 m. Nr. 3-4 Synthesis of CoNH4PO4 pigment by co-precipitation method
For the preparation of the cobalt light-violet pigment (CoNH4PO4 · H2O), a simple co-precipitation method has been suggested. The characteristics of the obtained product were compared with those of a commercial sample purchased from Kremer Pigmente (Germany). The pigment specimens were characterized by X-ray diffraction analysis (XRD), infrared spectroscopy (IR) and scanning electron microscopy (SEM). The optical properties of both CoNH4PO4 · H2O samples were also recorded. The formation of monophasic cobalt light-violet pigment by a simple co-precipitation method was confirmed by XRD analysis data. The SEM micrographs suggest that CoNH4PO4 · H2O solids synthesized by co-precipitation are composed of irregular submicron grains with an average grain size of less than 5 μm. Keywords: pigments, cobalt light-violet, CoNH4PO4 · H2O, synthesis, co-precipitation method |
Issues:
2017 - Vol.28 No. 1, No. 2, No. 3, No. 4 2016 - Vol.27 No. 1, No. 2, No. 3, No. 4 2015 - Vol.26 No. 1, No. 2, No. 3, No. 4 2014 - Vol.25 No. 1, No. 2, No. 3, No. 4 2013 - Vol.24 No. 1, No. 2, No. 3, No. 4 2012 - Vol.23 No. 1, No. 2, No. 3, No. 4 2011 - Vol.22 No. 1, No. 2, No. 3, No. 4 2010 - Vol.21 No. 1, No. 2-4 2009 - Vol.20 No. 1, No. 2, No. 3, No. 4 2008 - Vol.19 No. 1, No. 2, No. 3-4 2007 - Vol.18 No. 1, No. 2, No. 3, No. 4 2006 - Vol.17 No. 1, No. 2-3, No. 4 2005 - Vol.16 No. 1, No. 2, No. 3-4 2004 - Vol.15 No. 1, No. 2, No. 3, No. 4 2003 - Vol.14 No. 1, No. 2, No. 3, No. 4 2002 - Vol.13 No. 1, No. 2, No. 3, No. 4 2001 - Vol.12 No. 1, No. 2, No. 3, No. 4 |