Uji Penetapan Kadar Klorida dan Kesadahan Total pada Air Tanah dalam dengan Metode Titrimetri di UPT Laboratorium Dinas Energi dan Sumber Daya Mineral

Abstract

Tests for determination of chloride content and total hardness have been carried out quantitatively on groundwater at the UPT Laboratory of the Energy and Mineral Resources Service. The purpose of this analysis is to determine the chloride content and total hardness found in groundwater samples at the Department of Energy and Mineral Resources laboratory. Testing for chloride content was carried out using argentometric titration (mohr method) and testing for total hardness content was carried out using complexometric titration method. The test was carried out 3 times for each water sample. Based on the results of the analysis, it was obtained that the chloride content in the groundwater samples was 10.1925 mg/L each; 11.5515 mg/L; 9.7395 mg/L and the total hardness level was 32.5 mg/L each; 22.5 mg/L ; 21.5mg/L. It can be concluded that the groundwater sample meets the requirements of the Minister of Health of the Republic of Indonesia Number 492/MENKES/PER/IV/2010 where the chloride content is not more than 250 mg/L and the total hardness level is not more than 500 mg/L.