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an acid-base indicator which is yellow at pH values below 6.8 and red at pH values above 8.0, happe-aluse indikaator, mida kasutatakse tiitrimisel
fenolipunainen . EKI terminibaas Esterm. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//esterm/fenolipunainen/1/fin (10.07.2026)
