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Application filed by Liviu Roman, Rodica Craciunescu, Eugenia Florean, Corneliu Crihalmeanu, Victor Sipos, Silviu Filimon, Iulia PinteafiledCriticalLiviu Roman
Priority to RO110759ApriorityCriticalpatent/RO86489B1/ro
Publication of RO86489A2publicationCriticalpatent/RO86489A2/ro
Publication of RO86489B1publicationCriticalpatent/RO86489B1/ro
Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means
(AREA)
Abstract
Metoda de obtinere a unei hîrtii indicator universal de pH, conform inventiei, se caracterizeaza prin aceea ca se prepara un emstec de indicatori continînd 37,5-40 g albastru de bromtimol, 38-41 metiloranj, 78-81 g fenolftaleina, 9-11 g rosu de alizarina 58-62 g albastru de timol, care se dizolva în 100 l solutie apoasa de etanol, de concentratie 70% cu care se impregneaza hîrtia de filtru calitativa prin imersare, uscare si reimersare.
RO110759A1983-04-231983-04-23METODA DE OBTINERE A UNEI HîRTII INDICATOR UNIVERSAL DE PH
RO86489B1
(ro)