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Diah Mardiana
Chemistry Department, University of Brawijaya
Chemical Engineering, Chemistry & Bioengineering Chemistry Materials Science & Nanotechnology Medicine & Pharmacology

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Journal : The Journal of Pure and Applied Chemistry Research

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Synthesis of Hematite Pigments (alpha-Fe2O3) by Thermal Transformations of FeOOH Lilik Miftahul Khoiroh; Diah Mardiana; Akhmad Sabarudin; Bambang Ismuyanto
The Journal of Pure and Applied Chemistry Research Vol 2, No 1 (2013)
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (485.127 KB) | DOI: 10.21776/ub.jpacr.2013.002.01.120

Abstract

Synthesis of iron oxide FeOOH from FeCl3, followed by thermal transformation to form red hematite was conducted. The effect of pH and temperature calcinations was studied. The pigment obtained was analyzed by XRD, color reader and scanning electron microscopy (SEM). The structure crystal of pigment at all variation of pH and calcinations temperature were hematite (a-Fe2O3) with good crystallization and  relatively pure. The color of pigment obtained at pH variation were red with maximum value of L * a* at pH 6 while the mean grain size with minimum coefficient of variation was at pH 8 with mean grain size was 0.17 mm. The maximum of calcinations temperature was at 800oC for 3 hour. The resulting pigment was shaped like a spheres.
Co-Authors Akhmad Sabarudin Bambang Ismuyanto Lilik Miftahul Khoiroh