Precipitation Rate Investigation on synthesis of precipitated calcium carbonate

International Conference on Advanced Materials for Better Future 2017

Sulistiyono, E.^1 ; Handayani, M.^1 ; Firdiyono, F.^1 ; Fajariani, E.N.^2

Research Center of Metallurgy and Materials, Indonesian Institute of Sciences (LIPI), Tangerang Selatan, Banten

15314, Indonesia^1

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Surakarta

57126, Indonesia^2

关键词: High purity;    Optimum conditions;    Particle distributions;    Precipitated calcium carbonate;    Precipitation rates;    X ray fluorescence;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/333/1/012042/pdf
DOI  :  10.1088/1757-899X/333/1/012042

来源: IOP

【 摘 要 】

Study on the formation of precipitated calcium carbonate from natural limestone Sukabumi with the influenced of various parameters such as precipitation rate, concentration of CaCl2and amplitudes were investigated. We also investigated the result with the precipitated calcium carbonate from Merck (p.a) for comparison. The higher concentration of CaCl2would give effect to the lower of the precipitation rate. It was observed that precipitation rate of calcium carbonate from limestone Sukabumi at concentration of 0.08 molar was 3.66 cm/minutes and showing the optimum condition, while the precipitation rate of calcium carbonate Merck at the concentration 0.08 molar was 3.53 cm/minutes. The characterization of precipitated calcium carbonate was done using X-ray fluorescence (XRF) and scanning electron microscope (SEM). The characterization using XRF showed that CaO content of precipitated calcium carbonate from natural limestone Sukabumi had high purity of 99.16%. The particle distribution using scanning electron microscope (SEM) showed that precipitated calcium carbonate from natural limestone Sukabumi revealed 1.79 μm - 11.46 μm, meanwhile the particle distribution of precipitated calcium carbonate Merck showed larger particles with the size of 3.22 μm - 10.68 μm.