Sigma-Aldrich Calcon (C.I.15705) Metal I

Quality Level

200

Form

solid

Loss

≤10% loss on drying, 110°C

Ph

9.4 (25 °C, 10 g/L in H₂O)

Solubility

20 g/L

Bulk Density

530 kg/m³

Λmax

634-640 nm (buffer pH 12.2)

Storage Temp.

2-30°C

Inchi

1S/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+;

Inchi Key

YJUGDMOGPJJWDG-QPNALZDCSA-M

Related Categories

Indicators

Analysis Note

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

Storage Class

11 - Combustible Solids

Wgk_Germany

WGK 3

Flash_Point_F

Not applicable

Flash_Point_C

Not applicable