515-42-4 Usage
Description
Benzenesulfonic acid sodium salt, also known as sodium benzenesulfonate, is an off-white crystalline powder with unique chemical properties. It is a derivative of benzenesulfonic acid, where a hydrogen atom is replaced by a sodium ion, resulting in a negatively charged sulfonate group and a positively charged sodium ion.
Uses
Used in Raman Spectroscopic Determination:
Benzenesulfonic acid sodium salt is used as a reagent for Raman spectroscopic determination of molecular structural features in sulfonated polystyrene resins. Its unique chemical properties allow for the accurate identification and analysis of these resins' molecular structures.
Used in Electrochemistry:
In the field of electrochemistry, benzenesulfonic acid sodium salt is used as an electrolyte in the formation of polypyrrole coatings with varying surface morphology on stainless steel. Its presence enhances the electrochemical properties of the coatings, leading to improved performance in various applications.
Used in Synthesis of Ionic Liquids:
Benzenesulfonic acid sodium salt is utilized in the synthesis of 1-butyl-3-propanenitrile imidazolium benzenesulfonate, an ionic liquid with potential applications in various industries. Its role in the synthesis process contributes to the development of novel ionic liquids with specific properties and uses.
Used in Chemical Synthesis:
Benzenesulfonic acid sodium salt is also employed as an intermediate in the synthesis of various organic compounds and pharmaceuticals. Its unique chemical properties make it a valuable component in the development of new molecules with specific applications in different industries.
Used in Water Treatment:
In the water treatment industry, benzenesulfonic acid sodium salt is used as a component in the formulation of water treatment chemicals. Its ability to form complexes with various ions makes it effective in removing impurities and contaminants from water, ensuring clean and safe water supply.
Used in Dye Manufacturing:
Benzenesulfonic acid sodium salt is used as a starting material in the manufacturing of certain dyes and pigments. Its chemical properties allow for the production of dyes with specific color characteristics and stability, making it an essential component in the dye industry.
Purification Methods
Crystallise it from EtOH or aqueous 70-100% MeOH, and dry it under a vacuum at 80-100o. [Beilstein 11 H 28, 11 I 10, 11 II 18, 11 III 33, 11 IV 27.]
Check Digit Verification of cas no
The CAS Registry Mumber 515-42-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,1 and 5 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 515-42:
(5*5)+(4*1)+(3*5)+(2*4)+(1*2)=54
54 % 10 = 4
So 515-42-4 is a valid CAS Registry Number.
InChI:InChI=1/C6H6O3S.Na/c7-10(8,9)6-4-2-1-3-5-6;/h1-5H,(H,7,8,9);/q;+1/p-1
515-42-4Relevant articles and documents
Quantitative Treatment of Micellar Effects upon the Nucleophilicity of Halide Ions
Al-Lohedan, Hamad,Bunton, Clifford A.,Moffatt, John R.
, p. 332 - 335 (1983)
Nucleophilic attack upon methyl benzenesulfonate (1) by Cl- or Br- occurs readily in aqueous cetyltrimethylammonium chloride or bromide (CTACl or CTABr, respectively).The increase of rate constant with can be analyzed in terms of the concentration of 1 and halide ion in the micellar pseudophase, and the second-order rate constants in micellar and aqueous pseudophases are similar.
Chan-Lam-Type C-S Coupling Reaction by Sodium Aryl Sulfinates and Organoboron Compounds
Lam, Long Yin,Ma, Cong
supporting information, p. 6164 - 6168 (2021/08/16)
A Chan-Lam-Type C-S coupling reaction using sodium aryl sulfinates has been developed to provide diaryl thioethers in up to 92% yields in the presence of a copper catalyst and potassium sulfite. Both electron-rich and electron-poor sodium aryl sulfinates and diverse organoboron compounds were tolerated for the synthesis of aryl and heteroaryl thioethers and dithioethers. The mechanistic study suggested that potassium sulfite was involved in the deoxygenation of sulfinate through a radical process.
Functional Hyper-Crosslinked Polypyrene for Reductive Decolorization of Industrial Dyes and Effective Mercury Removal from Aqueous Media
Varyambath, Anuraj,Song, Wen L.,Kim, Il
, p. 1078 - 1087 (2018/11/23)
A rigid and valuable hyper-crosslinked polymer (HCP) has been synthesized from the polycyclic aromatic hydrocarbon pyrene: hyper-crosslinked polypyrene (HCPPy). HCPPy was prepared through a simple one-step Friedel-Crafts alkylation reaction that involves ZnBr2-catalyzed crosslinking in the presence of an external crosslinker, bromomethyl methyl ether (BME). Interestingly, the unreacted bromomethyl groups (?CH2Br) on the surface of HCPPy could be quantified, which later aided in modification as per our requirement. We aimed at modifying with disulfide-containing cystamine dihydrochloride (Cys-HCPPy). Cys-HCPPy exhibited an extended π-conjugated system with uniform (～1 μm diameter) morphology and high porosity (specific surface area: 445 m2 g?1). As a fundamental application, the Cys-HCPPy composite was used as a sorbent to remove Hg2+ ions from aqueous media. Thus, at pH 6, the adsorption capacity for mercury ions reached 1124.82 mg g?1 after 24 h. Furthermore, the immobilization of Ag nanoparticles on the surface of Cys-HCPPy (Ag@Cys-HCPPy) enhanced the catalytic properties, which allowed for the reductive decolorization of industrial dyes such as methylene blue, methyl orange, and Congo Red in the presence of NaBH4 as a reducing agent.
