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CALCON (C.I.15705) METAL INDICATOR 50 G

Brands: MERCK
Rp 1.786.000

Synonym(s): Calcon (C.I.15705), 2-Hydroxy-1-(2-hydroxy-1-naphthylazo)naphthalene-4-sulfonic acid sodium salt

Empirical Formula (Hill Notation): C20H13N2NaO5S

Identity (UV/VIS-Spectrum): passes test

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

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PT. Multi Medika Laboratory

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