Flourescein dinatriumsalt concentrate for examination of subterranean waters (Uranine AP) (C.I. 45350)
: Merck
:518-47-8
:
:C₂₀H₁₀Na₂O₅
:MFCD00167039
:376.28 g/mol
:13,04185
:> 300 °C
:1,601 g/cm³ (20 °C)
:M-Clarity™ quality level = MQ200
:Omgivande
:208-253-0
- Identity (UV/VIS-Spectrum):passes test
- Appearance:Reddish-brown powder, eventually with granular and bright parts.
- Absorption maximum λmax. (buffer pH 8.0):489 - 491 nm
- Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l; buffer pH 8.0; calc. on dried substance):≥ 1800
- Loss on drying (110 °C):≤ 7 %