1.04594
Calcon (C.I.15705)
metal indicator
Synonym(s):
Calcon (C.I.15705), 2-Hydroxy-1-(2-hydroxy-1-naphthylazo)naphthalene-4-sulfonic acid sodium salt
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About This Item
Product Name
Calcon (C.I.15705), metal indicator
Quality Level
SMILES string
[Na+].[S](=O)(=O)([O-])C1=CC(=O)\C(=N\Nc3c4c(ccc3O)cccc4)\c2c1cccc2
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
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
Related Categories
Analysis Note
Absorption maximum λmax. (buffer pH 12.2): 634 - 640 nm
Spec. Absorptivity A 1%/1cm (λmax; 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
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 1.04594.0050 | 04022536053172 |
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