Open AccessIsolation Mg(OH)2 from Dolomite with Extraction Process used HNO3
Author(s) -
Ni Ketut Sari,
Dira Ernawati,
Widi Wurjani
Publication year - 2021
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 - 10.1088/1742-6596/1899/1/012055
Subject(s) - dolomite , nitric acid , extraction (chemistry) , precipitation , impurity , nuclear chemistry , chemistry , mineralogy , inorganic chemistry , chromatography , physics , organic chemistry , meteorology
Dolomite MgCa(CO 3 ) 2 has not been used to the fullest in Indonesia, where the natural resources of dolomites are quite abundant and are available in very large quantities. Mg(OH) 2 isolated of dolomite originated from the East Java region with the extraction process using nitric acid. Using variable time and temperature, to acquire the element Mg(OH) 2 . To get the greatest Mg(OH) 2 , the precipitation process from using NaOH, and isolating Mg(OH) 2 from the Elements of Ca(OH) 2 and other impurities with Na EDTA solutions. From research obtained the best condition Mg(OH) 2 from dolomite with NaOH additions with a variable stirring time for 5 hours and a temperature of 45 °C is at 175.60 mg/L.