TITAN YELLOW (C.I. 19540) INDICATOR

Analysis Note

Identity (UV/VIS-Spectrum): passes test
Absorption maximum λ_max. (buffer pH 7.0): 398 - 402 nm
Spec. Absorptivity A 1%/1cm (λ_max; 0.01 g/l; buffer pH 7.0; calc. on dried substance): ≥ 350
Transition range: pH 12.0 - pH 13.0Yellow - orange
Loss on drying (110 °C): ≤ 8 %
Suitability as reagent (for magnesium): passes test

Molecular Weight: 695.72. Empirical Formula: C₂₈H₁₉N₅Na₂O₆S₄. Agency: reag. Ph. Eur.. Quality Level: 200. form: solid. loss: ≤. 8% loss on drying, 110°C. pH: 5.1 (20 . °C, 10 . g/L in H₂O). mp: >. 300 . °C (decomposition). solubility: 29 . g/L. bulk density: 310 . kg/m³. λ. _max: 398-402 nm (buffer pH 7.0). storage temp.: 2-30°C. InChI: 1S/C28H21N5O6S4.2Na/c1-15-3-13-21-23(25(15)42(34,35)36)40-27(29-21)17-5-9-19(10-6-17)31-33-32-20-11-7-18(8-12-20)28-30-22-14-4-16(2)26(24(22)41-28)43(37,38)39. . /h3-14H,1-2H3,(H,31,32)(H,34,35,36)(H,37,38,39). . /q. 2*+1/p-2. InChI key: CZIRZNRQHFVCDZ-UHFFFAOYSA-L. Storage Class Code: 11 - Combustible Solids. WGK: WGK 3. Flash Point(F): Not applicable. Flash Point(C): Not applicable.