1.03164

Eriochrome cyanine R (C.I. 43820)

metal indicator, for analysis, reagent for aluminum

• Synonym(e): Eriochrome cyanine R (C.I. 43820)
• Empirische Formel (Hill-System): C₂₃H₁₅Na₃O₉S
• CAS-Nummer: 3564-18-9
• Molekulargewicht: 536.39
• UNSPSC-Code: 12352107
• EG-Index-Nummer: 222-641-7
• NACRES: NB.21

Eigenschaften

• product name: Eriochrome cyanine R (C.I. 43820), for analysis (reagent for aluminium)
• Qualitätsniveau: 200
• Wirksamkeit: >2000 mg/kg LD₅₀, oral (Rat)
• Verlust: ≤10% loss on drying, 110°C
• pH-Wert: 9.1 (24 °C, 10 g/L in H₂O)
• Löslichkeit: 420 g/L
• Schüttdichte: 590 kg/m³
• λmax: 434-440 nm (buffer pH 7.0)
• Lagertemp.: 2-30°C
• InChI: 1S/C23H18O9S.Na/c1-11-7-13(9-15(19(11)24)21(26)27)23(14-8-12(2)20(25)16(10-14)22(28)29)17-5-3-4-6-18(17)33(30,31)32-23;/h3-10,24-25H,1-2H3,(H,26,27)(H,28,29);/q;+1
• InChIKey: HJEGHSWGWSAZBS-UHFFFAOYSA-N

Beschreibung

Anwendung

• Determination of Food Oxalates Using Silica-Titania Xerogel Modified with Eriochrome Cyanine R.: This research explores a novel method to determine oxalate concentrations in food using Eriochrome Cyanine R, highlighting the dye′s potential in enhancing analytical sensitivity and specificity (Morosanova et al., 2018).
• Development of a Dispersive Liquid-Liquid Microextraction Method Combined with UV-Visible Spectrophotometry for Determination of Trace Aluminum(III) in Water, Wastewater, Food, Biological, and Pharmaceutical Samples.: This study demonstrates a new method utilizing Eriochrome Cyanine R for tracing aluminum levels across various samples, showcasing its utility in environmental and health-related chemical analyses (Birgani et al., 2017).
• Direct, sensitive determination of trace amounts of dissolved ferric iron in natural water by light absorption ratio variation spectrometry.: Though not directly mentioning Eriochrome Cyanine R, this article focuses on related spectrometric techniques that can be adapted for dyes like Eriochrome Cyanine R to detect iron in natural water sources (Gao et al., 2005).
• Determination of vanadium by solid-phase spectrophotometry after its preconcentration as an Eriochrome Cyanine R complex on a dextran-type exchanger.: This research introduces a method for vanadium determination using Eriochrome Cyanine R, underlining the dye′s role in the preconcentration and quantification of vanadium in complex matrices (Boudra et al., 1995).

Hinweis zur Analyse

Identität (UV/VIS-Spektrum): entspricht
Absorptionsmaximum λ_max. (Puffer pH 7.0): 434 - 440 nm
Spez. Extinktion E1%/1cm (λ_max; 0.02 g/l; Puffer pH 7.0; berechnet auf getrocknete Substanz): 130 - 230
Trocknungsverlust (110 °C): ≤ 10 %

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable