Abstract
Abstract
The purpose of this study is to identify natural indicators that can be used to test the qualitative presence of formalin and borax. The results of this qualitative test can be used for student learning in schools, especially for harmful additive substances in food. Qualitative test using a drop test. Formalin test using extract flower of ribose ruellia, hibiscus rosa-sinensis L and Impatiens L balsamina, while for borax test using ruellia simplex, plumeria rubra, portulaca grandiflora and curcuma longa. Based on the results of the research that has been done, the extract can be used to determine the presence of borax and formalin with a drop test.
Subject
General Physics and Astronomy
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