KANDUNGAN ALUMINIUM DALAM KALENG BEKAS DAN PEMANFAATANNYA DALAM PEMBUATAN TAWAS

Abstract

This research was performed to analyze the aluminium content in several wasted cans. The analysis used
AAS at 309.3 nm. This method was chosen since its operation is relatively simple but capable of analyzing low metal
contents (less than 1 ppm). The aluminium content of wasted cans ranges from 1.41% up to 16.04%. The aluminium
was used to make alum, with the percentage of yield of 77.04% up to 96.81%, depending on the type or cans. In
other words, one gram of wasted cans produced 0.2335 grams up to 2.6857 grams of alum. The produced alum was
capable of purifying water.