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8208125 
Journal Article 
Characterization of Limestone as Raw Material to Hydrated Lime 
Hwidi, RS; Tengku Izhar, TN; Mohd Saad, FN; Mohamed Noor, N; Azhari, AW; , 
2018 
E3S Web of Conferences
EISSN: 2267-1242 
AMER INST PHYSICS 
MELVILLE 
02042 
In Malaysia, limestone is essentially important for the economic growth as raw materials in the industry sector. Nevertheless, a little attention was paid to the physical, chemical, mineralogical, and morphological properties of the limestone using X-ray fluorescence (X-RF), X-ray diffraction (X-RD), Fourier transform infrared spectroscopy (FTIR), and Scanning electron microscopy / energy dispersive x-ray spectroscopy (SEM-EDS) respectively. Raw materials (limestone rocks) were collected from Bukit Keteri area, Chuping, Kangar, Perlis, Malaysia. Lab crusher and lab sieved were utilized to prepare five different size of ground limestone at (75 µm, 150 µm, 225 µm, 300, and 425 µm) respectively. It is found that the main chemical composition of bulk limestone was Calcium oxide (CaO) at 97.58 wt.% and trace amount of MnO, Al 2 O 3 , and Fe 2 O 3 at 0.02%, 0.35%, and 0.396% respectively. XRD diffractograms showed characteristic peaks of calcite and quartz. Furthermore, main FTIR absorption bands at 1,419, 874.08 and 712.20 cm -1 indicated the presence of calcite. The micrographs showed clearly the difference of samples particle size. Furthermore, EDS peaks of Ca, O, and C elements confirmed the presence of CaCO 3 in the samples. 
BinGhazli, MF; Ahmad, R; Tahir, MFB; Jamaludin, LB; Abdullah, MMAB; Rahim, SZBA; Saad, MNB; 
4th International Conference on Green Design and Manufacture (IConGDM) 
Ho Chi Minh City, VIETNAM