210414MEA
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210414M
210416X
pH Indicator solution, BDH® '4.5' pH 3,5 - 6,0 Titration_first hydrogen of H3PO4, for titration of first hydrogen of phosphoric acid
pH Indicator solution
A mixed indicator for the titration of the first hydrogen of phosphoric acid, range pH 3,5 to 6,0
pH 3,5 orange-red
pH 4,4 orange-grey
pH 4,5 pure grey
pH 4,6 bluish-grey
pH 6,0 deep blue