1.03168

Eriochrome blue-black B (C.I. 14640)

metal indicator

• Sinonimo/i: Eriochrome blue-black B (C.I. 14640), 2-Hydroxy-1-(1-hydroxy-2-naphthylazo)-naphthalene-4-sulfonic acid sodium salt
• Formula empirica (notazione di Hill): C₂₀H₁₃N₂NaO₅S
• Numero CAS: 3564-14-5
• Peso molecolare: 416.38
• Numero MDL: MFCD00003934
• Codice UNSPSC: 12352107
• Numero indice EU: 222-639-6
• NACRES: NA.21

Proprietà

• Nome del prodotto: Eriochrome blue-black B (C.I. 14640), metal indicator
• Livello qualitativo: 200
• Stato: solid
• Potenza: >5000 mg/kg LD₅₀, oral (Rat)
• Perdita: ≤10% loss on drying, 110°C
• pH: 9.5 (20 °C, 10 g/L in H₂O)
• Solubilità: 20 g/L
• Densità bulk: 540 kg/m³
• λmax: 634-644 nm (buffer pH 10.0)
• Temperatura di conservazione: 15-25°C
• Stringa SMILE: [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-;; YRFCCVCSEVISHI-GXTSIBQPSA-M

Descrizione

Applicazioni

• 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).

Risultati analitici

Identity (UV/VIS-Spectrum): passes test
Absorption maximum λ_max. (buffer pH 10.0): 634 - 644 nm
Spec. Absorptivity A 1%/1cm (λ_max; 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

Informazioni sulla sicurezza

• Pittogrammi: GHS07
• Avvertenze: Warning
• Indicazioni di pericolo: H319
• Consigli di prudenza: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Classi di pericolo: Eye Irrit. 2
• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 3
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable