IDENTIFIKASI KANDUNGAN CaCO3 DALAM BATUAN KAPUR DI DESA MANULAI I MENGGUNAKAN METODE XRF DAN XRD

IDENTIFICATION OF CaCO3 CONTENT IN LIME ROCK IN MANULAI I VILLAGE USING XRF AND XRD METHODS

Abstract

This study aims to determine the compounds contained in limestone, identify the content and crystal phase of CaCO₃ in limestone and determine the effect of heating temperature on the CaCO₃ crystal phase in limestone using XRF and XRD methods. XRF test results show that the compounds contained in limestone in Manulai I village are CaO, Nb₂O₅, Cr₂O₃, MoO₃, In₂O₃, SnO₂, Sb₂O₃, RuO₄, dan Na₂O and XRD test results showed that the crystal phase of CaCO³ at a temperature of 550⁰C to 750⁰C was in the form of calcite. In limestone calcined at different temperatures, the intensity increases, this can be interpreted that the higher the calcination temperature, the higher the crystallinity.