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3,3'-Bis[N,N-di(carboxymethyl)-aminomethyl] thymolsulfonphthalein
EC: 217-743-3 NC: 2932 99 85
Identity..............................................................................................IR p/t.
T.L.C..................................................................................................... p/t.
MAX. IMPURITIES
Transition interval:
yellow....................................................................................................6,5
blue........................................................................................................8,5
Transition interval according to ACS.................................................... p/t.
Insoluble matter in H2O......................................................................... p/t.
Loss on drying at 135°C....................................................................10 %
Suitability as metal indicator................................................................ p/t.
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