Fluorescein disodium salt concentrate for examination of subterranean waters (Uranine AP) (C.I. 45350)
Supplier: Merck
M-Clarity™ quality level = MQ200
1.08462.0100
1.08462.1000
1.08462.0100EA
111
EUR
1.08462.0100
1.08462.1000
Fluorescein disodium salt concentrate for examination of subterranean waters (Uranine AP) (C.I. 45350)
Fluorescein disodium salt
Formula:
C₂₀H₁₀Na₂O₅ Melting Pt: > 300 °C Density: 1,601 g/cm³ (20 °C) Storage Temperature: Ambient |
MDL Number:
MFCD00167039 CAS Number: 518-47-8 EINECS: 208-253-0 Merck Index: 13,04185 |
Specification Test Results
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 % |
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