Open AccessIdentification of Phase CaCO3/MgO in Bangkalan Dolomite Sand as An Antibacterial Substance
Author(s) -
Lydia Rohmawati,
S P Sholicha,
SP S Holisa,
Woro Setyarsih
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1417/1/012001
Subject(s) - dolomite , calcination , brucite , phase (matter) , calcium hydroxide , periclase , lime , calcite , magnesium , mineralogy , materials science , hydroxide , chemistry , nuclear chemistry , chemical engineering , metallurgy , inorganic chemistry , organic chemistry , engineering , catalysis
Dolomite sand has several ingredients such as CaCO 3 and MgO which have the potential as an antibacterial substance. The making of this antibacterial substance uses the heating/calcination method of dolomite powder with a variation of holding time from 0.5 to 2.5 hours at a temperature of 700°C. The nanoparticles produced from the calcination process were then characterized by XRD to identify the formed phase. This study aimed to determine the effect of holding time on phase formation on dolomite. The results of this study are identified as forming four phases namely calcite (CaCO 3 ), periclase (MgO), calcium hydroxide (Ca(OH) 2 ) and lime (CaO) with different percentages in each variation of holding time. The Ca(OH) 2 and CaO phases include the impurity phase with a lower percentage than the CaCO 3 and MgO phase percentages. The most dominant phase is CaCO 3 and the MgO phase formed optimally at 1 hour holding time with a percentage of 47.1% CaCO 3 and 35.9% MgO.