Chemical Characterisation of Unrefined Rock Salt Deposits of Pakistan

Abrar ul Hassan; Sakhawat Ali; Ayesha Mohy Udd Din; Salman Muhsen

doi:10.52763/PJSIR.PHYS.SCI.59.3.2016.126.129

Abrar ul Hassan Department of Chemistry, University of Management and Technology, Joher Town, Lahore, Pakistan
Sakhawat Ali Food and Biotechnology Research Centre, PCSIR Laboratories Complex, Lahore-54600 Pakistan
Ayesha Mohy Udd Din Department of Chemistry, University of Management and Technology, Joher Town, Lahore, Pakistan
Salman Muhsen Department of Chemistry, University of Management and Technology, Joher Town, Lahore, Pakistan

DOI: https://doi.org/10.52763/PJSIR.PHYS.SCI.59.3.2016.126.129

Keywords: atomic absorption spectroscopy, rock salt, moisture content, trace elements

Abstract

Different salt samples from mining sites of Bahadur Khel, Warcha and Jatta salt mines were collected during a survey to evaluate their parameters of purity like water insoluble matter, calcium, magnesium, sulphate and potassium contents.Trace elements such as iron, zinc, copper, mangansese,
chromium, lead and cadmium were determined by using Atomic absorption Spectrophotometer.Obtained results have shown that of all the three salt deposits, Bahadur Khel salt deposits have a of low purity of 97% set by codex alimentarius commission.Trace element contents of all the salt deposits were within the legal limits of human consumption and RDA specification.