1-Nitroso-2-naphthol-3,6-disulfonic acid disodium salt, 90+%, Thermo Scientific Chemicals
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1-Nitroso-2-naphthol-3,6-disulfonic acid disodium salt, 90+%, Thermo Scientific Chemicals
Thermo Scientific Chemicals

1-Nitroso-2-naphthol-3,6-disulfonic acid disodium salt, 90+%, Thermo Scientific Chemicals

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Catalog number B23375.14
also known as B23375-14
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Chemical Identifiers
CAS525-05-3
IUPAC Namedisodium 3-hydroxy-4-nitrosonaphthalene-2,7-disulfonate
Molecular FormulaC10H5NNa2O8S2
InChI KeyDMKMTGULLYISBH-UHFFFAOYSA-L
SMILES[Na+].[Na+].OC1=C(N=O)C2=CC=C(C=C2C=C1S([O-])(=O)=O)S([O-])(=O)=O
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SpecificationsSpecification SheetSpecification Sheet
Loss on Drying≤6.0% (200?C, constant wt.)
Appearance (Color)Yellow to orange
FormCrystalline powder or powder
Assay (Aqueous acid-base Titration)≥90.0 to ≤110.0?C (dry wt. basis)
Assay (ex Sulphated Ash)≥90.0 to ≤110.0?C (dry wt. basis)
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1-Nitroso-2-naphthol-3,6-disulfonic acid disodium salt is the most sensitive determination of trace cobalt reagents used for determination of cobalt and potassium-sensitive reagents.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
1-Nitroso-2-naphthol-3,6-disulfonic acid disodium salt is the most sensitive determination of trace cobalt reagents used for determination of cobalt and potassium-sensitive reagents.

Solubility
Slightly soluble in methanol and ethanol.

Notes
Store in a cool, dry conditions, in well sealed conditions. Store away from oxidizing agents.
RUO – Research Use Only

General References:

  1. Erdal Kendüzler; Ali Rehber Türker. Determination of trace cadmium in waters by flame atomic absorption spectrophotometry after preconcentration with 1-nitroso-2-naphthol-3,6-disulfonic acid on Ambersorb 572. Annali di Chimica. 2005, 95 (1-2), 77-85.
  2. J Miura; S Arima; M Satake.Column chromatographic pre-concentration of iron(III) in alloys and biological samples with 1-nitroso-2-naphthol-3,6-disulphonate and benzyldimethyltetradecylammonium-perchlorate adsorbent supported on naphthalene using atomic absorption spectrometry. Analyst (Cambridge UK). 1960, 115 (9), 1191-1195.
  3. Reagent for determination of Co and other metals.