132-53-6 Usage
Description
2-Nitroso-1-naphthol is a chemical compound characterized by its yellow-greenish to yellow-brownish powder form. It is primarily recognized for its role as a selective complexing agent in the extraction of cobalt ions and is also utilized in the separation and preconcentration of various metal ions through solid phase extraction techniques.
Uses
Used in Chemical Analysis:
2-Nitroso-1-naphthol is used as a selective complexing agent for the extraction of cobalt ions. Its application in this field is crucial for accurate and efficient analysis of cobalt ion concentrations in various samples.
Used in Metal Ion Separation and Preconcentration:
In the field of metal ion separation and preconcentration, 2-Nitroso-1-naphthol is employed as a complexing agent to facilitate the separation and concentration of Th(IV), Ti(IV), Fe(III), Pb(II), and Cr(III) ions. This application is vital for enhancing the efficiency of metal ion analysis and detection in various industries, including environmental monitoring, mining, and metallurgy.
Used in Environmental Monitoring:
2-Nitroso-1-naphthol plays a significant role in environmental monitoring as it aids in the detection and analysis of metal ion contaminants. Its use in this industry helps to ensure the safety and quality of environmental samples, contributing to the protection of ecosystems and human health.
Used in Mining and Metallurgy:
In the mining and metallurgy industries, 2-Nitroso-1-naphthol is utilized for the separation and preconcentration of valuable metal ions. Its application in these industries aids in the efficient extraction and processing of metals, ultimately contributing to the overall productivity and profitability of mining and metallurgical operations.
Safety Profile
Moderately toxic by
ingestion. Many nitroso compounds are
carcinogens. Questionable carcinogen with
experimental tumorigenic data. When heated
to decomposition it emits toxic fumes of
NOx. See also NITROSO COMPOUNDS.
Purification Methods
Purify the naphthol by recrystallisation from pet ether (b 60-80o) or by dissolving it in hot EtOH, followed by successive addition of small volumes of water (m 158o dec). It also crystallises from *C6H6 or H2O. Crystallisation from *C6H6/pet ether gives m (106-109 o, also 109.5o). It has max at 274.5 and 382nm (CHCl3). It complexes with metals. [Beilstein 7 H 712, 7 I 385, 7 II 647, 7 III 3688, 7 IV 2419.]
Check Digit Verification of cas no
The CAS Registry Mumber 132-53-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,3 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 132-53:
(5*1)+(4*3)+(3*2)+(2*5)+(1*3)=36
36 % 10 = 6
So 132-53-6 is a valid CAS Registry Number.
InChI:InChI=1/C10H7NO2/c12-10-8-4-2-1-3-7(8)5-6-9(10)11-13/h1-6,12H/p-1
132-53-6Relevant articles and documents
Synthesis of nitroso-based bis-azo dyes and their dyeing properties for polyethylene terephthalate and polyamide
Augustine, Asiagwu K.,Otutu, Johnson O.
, p. 3949 - 3959 (2020/11/18)
The aim of this work is the synthesis of new azo nitroso-based dispersed dyes with better dyeing properties on synthetic fibers. In this regard, bis-azo nitroso naphthalene dyes were synthesized via the diazo coupling reactions of 4-nitroaniline with 1-hydroxy-2-nitrosonapthalene. Products formed were characterized by 1H and 13C NMR. Absorption values in the UV-vis spectra of the derivatives under study were quite close and they exhibited multiple maxima in the 386 - 513nm range. The dyeing process, dye exhaustion on polyethylene terephthalate (PET) and polyamide 6 (nylon 6) fabrics, and the durability of the dyes on the textile substrates were evaluated. It was found that the light fastness ratings of the dyed fabrics could reach grade 6/7 to 7, while washing fastness gave excellent values of grade 5 rubbing and perspiration fastness grades were rated at 4/5 to 5 on the International Geometric Scale. The results obtained suggested that the dyes could be used as disperse dyes on synthetic polymers fibres.
NO2/H3BO3 as an effective nitrosonium source for electrophilic aromatic nitrosation under MW-promoted solvent-free conditions
Valizadeh, Hassan,Gholipour, Hamid
experimental part, p. 963 - 966 (2012/04/23)
[Bmim]NO2/H3BO3 was used as a nitrosonium source for the efficient synthesis of nitrosoarenes. The reaction was accomplished under MW irradiation at 60 W in a solventless system. Side processes such as oxidation or dealkylation were not observed during the nitrosation of alkyl phenyl ethers in the presence of this new reagent. The satisfactory results were obtained with very short reaction time, simplicity in the experimental procedure and good to excellent yields.
The first example of the azo coupling of cyclopropyldiazonium ion under conditions of direct nitrosation of cyclopropylamine [2]
Tomilov,Okonnishnikova,Kostyuchenko
, p. 1038 - 1039 (2007/10/03)
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