PEMBUATAN KERTAS INDIKATOR ASAM-BASA DARI KULIT BUAH ALPUKAT

Abstract

The research about “Acid-Base Indicator Manufacturing from Avocado’s Peel” had done. The research aims to make acid-base indicator from avocado’s peel in paper form as chemistry’s learning media. Polytechnic ATI Padang was the place that the research held with avocado’s peel as the sample matter.  The genre of the research was descriptive with qualitative approaching. It had two phases which was manufacturing and testing of paper indicator from avocado’s peel. Data was collected by acid-base indicator from fruit’s peel’s paper test observation. Data analysis showed interval up to 30 days for avocado’s peel based paper indicator to express a different color in acid, base, and neutral solution. The Conclusion of the research was acid-base indicator from avocado’s peel paper was stable and could be used as acid-base indicator and learning media.