Analisis Kandungan Garam Gunung Asal Krayan Kabupaten Nunukan Kalimantan Timur

Abstract

Has been studied composition of mountain salt from Krayan, Nunukan, East Kalimantan. This study aims to determine the composition of the minerals contained in the  mountain salt. Mountain salt is obtained from wells Krayan District residents were further prepared for analysis using a technique using Atomic Absorption Spectrometer (AAS), further by looking at the pattern of X-ray Diffraction (XRD) and Scanning electron microscopic (SEM). Based on the results obtained AAS has identified mineral deposits include: Na, K, Mg, Al, Cu, Zn, Fe, Ba, and Sr. From the results of XRD shows that the main peak of the salt Krayan shows major peaks for NaCl crystals with impurities such as KCl, CaCl₂, MgCl₂, and AlCl₃. SEM observation showed that morphology of Krayan salt have cube shape which is the shape of NaCl crystals with space group Fm3m and lattice parameter (a) 5.620 Ã…