ПросмотрWVSU Research Journal, 04(01), June 2015 по теме "pH"
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pH indicator from kamias (Averrhoa bilimbi L.) flower extract
(University Research and Development Center, West Visayas State University, 2015-06)The acidic or basic nature of materials is usually determined using pH meter and commercially-sold or synthetic indicating means. In this study, an eco-friendly pH indicator was prepared from the aqueous and ethanolic ...