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Thymolphthalein, indicator, for analysis, ExpertQ®, ACS

- C28H30O4r- M = 430,55 g/molr- CAS [125-20-2]r- EINECS-No.: 204-729-7r- Solub. in water: (20 ºC): almost insolubler- Melting point: 253 ºCr- Tariff number: 2932 20 90 90r- Applications: analytical chemistry, laboratory reagent, indicator.rrSPECIFICATIONSridentity (UV-VIS spectroscopy): passes testrappearance of solution: passes testrpH range (colourless to blue): 8,8 - 10,5 rAbsorption maximum l (pH 10,5): 592 - 596 nmrAbsorptivity (A1%/1 cm; lmax , 0,01 g/l, pH 10,5, on dried sample): 800 - 900 rloss on drying (110 ºC): max. 1,0 %r