1.03168
Eriochrome blue-black B (C.I. 14640)
metal indicator
别名:
Eriochrome blue-black B (C.I. 14640), 2-Hydroxy-1-(1-hydroxy-2-naphthylazo)-naphthalene-4-sulfonic acid sodium salt
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关于此项目
经验公式（希尔记法）:
C20H13N2NaO5S
化学文摘社编号:
分子量:
416.38
MDL number:
UNSPSC Code:
12352107
EC Index Number:
222-639-6
NACRES:
NA.21
产品名称
Eriochrome blue-black B (C.I. 14640), metal indicator
SMILES string
[Na+].[S](=O)(=O)([O-])C1=CC(=O)\C(=N/Nc3c(c4c(cc3)cccc4)O)\c2c1cccc2
InChI
1S/C20H14N2O5S.Na/c23-17-11-18(28(25,26)27)14-7-3-4-8-15(14)19(17)22-21-16-10-9-12-5-1-2-6-13(12)20(16)24;/h1-11,21,24H,(H,25,26,27);/q;+1/p-1/b22-19-;
InChI key
YRFCCVCSEVISHI-GXTSIBQPSA-M
form
solid
potency
>5000 mg/kg LD50, oral (Rat)
loss
≤10% loss on drying, 110°C
pH
9.5 (20 °C, 10 g/L in H2O)
solubility
20 g/L
bulk density
540 kg/m3
λmax
634-644 nm (buffer pH 10.0)
storage temp.
15-25°C
Quality Level
Application
- New palladium-oxazoline complexes: Synthesis and evaluation of the optical properties and the catalytic power during the oxidation of textile dyes.: This study examines new palladium-oxazoline complexes, focusing on their synthesis and evaluation of their optical properties and catalytic power in the oxidation of textile dyes, including Eriochrome Blue-Black B (Hassani et al., 2015).
- Wet air and catalytic wet air oxidation of several azodyes from wastewaters: the beneficial role of catalysis.: This research explores the application of wet air and catalytic wet air oxidation processes to degrade various azo dyes in wastewaters, highlighting the positive impact of catalysis in enhancing degradation efficiency, potentially applicable to Eriochrome Blue-Black B (Rodríguez et al., 2009).
Analysis Note
Identity (UV/VIS-Spectrum): passes test
Absorption maximum λmax. (buffer pH 10.0): 634 - 644 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.025 g/l; buffer pH 10.0; calculated on anhydrous substance): 220 - 320
Loss on drying (110 °C): ≤ 10 %
Suitability as indicator (for metal titration): passes test
Absorption maximum λmax. (buffer pH 10.0): 634 - 644 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.025 g/l; buffer pH 10.0; calculated on anhydrous substance): 220 - 320
Loss on drying (110 °C): ≤ 10 %
Suitability as indicator (for metal titration): passes test
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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