CALCON (C.I.15705) METAL INDICATOR

Code: 1045940050 D2-231

Analysis Note

Identity (UV/VIS-Spectrum): passes testAbsorption maximum λmax. (buffer pH 12.2): 634 - 640 nmSpec. Absorptivity A 1%/1cm (λmax;...


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Analysis Note

Identity (UV/VIS-Spectrum): passes testAbsorption maximum λmax. (buffer pH 12.2): 634 - 640 nmSpec. Absorptivity A 1%/1cm (λmax; 0.015 g/l; buffer pH 12.2; calculated on dried substance): 250 - 400Loss on drying (110 °C): ≤ 10 %Suitability as indicator (for metal titration): passes test

λmax634-640 nm (buffer pH 12.2)
bulk density530 kg/m3
formsolid
InChI keyYJUGDMOGPJJWDG-QPNALZDCSA-M
InChI1S/C20H14N2O5S.Na/c23-16-10-9-12-5-1-2-6-13(12)19(16)21-22-20-15-8-4-3-7-14(15)18(11-17(20)24)28(25,26)27;/h1-11,21,23H,(H,25,26,27);/q;+1/p-1/b22-20+;
loss≤10% loss on drying, 110°C
pH9.4 (25 °C, 10 g/L in H2O)
Quality Level200
solubility20 g/L
storage temp.2-30°C
Cas Number2538-85-4
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