96-71-9

Basic information

• Product Name: p-Cymene-2-sulfonic acid
• Synonyms: p-Cymene-2-sulfonic acid;5-ISOPROPYL-2-METHYLBENZENESULFONIC ACID;2-Methyl-5-isopropylbenzenesulfonic acid
• CAS NO: 96-71-9
• Molecular Formula: C₁₀H₁₄O₃S
• Molecular Weight: 214.28
• Mol File: 96-71-9.mol
• Article Data: 5

Chemical Properties

• Appearance: /
• Density: 1.200
• Refractive Index: 1.534
• CAS DataBase Reference: p-Cymene-2-sulfonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: p-Cymene-2-sulfonic acid(96-71-9)
• EPA Substance Registry System: p-Cymene-2-sulfonic acid(96-71-9)

Safety Data

• Hazardous Substances Data: 96-71-9(Hazardous Substances Data)

Usage

InChI:InChI=1/C10H14O3S/c1-7(2)9-5-4-8(3)10(6-9)14(11,12)13/h4-7H,1-3H3,(H,11,12,13)

Upstream product

• 99-87-6 4-methylisopropylbenzene 

Downstream Products

• 62454-72-2 4-methyl-3-sulfobenzoic acid 
• 20154-41-0 4-isopropyl-2-hydroxybenzoic acid 
• 499-75-2 carvacrol 

Relevant articles and documents

Color reaction of p-cymol with vanillin-sulfuric acid

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Mass Spectral Studies of Alkylbenzenesulphonic Acids Through Their S-Benzylisothiouronium Salts

The mass spectra of alkylbenzenesulphonic acids in the form of their S-benzylisothiouronium salts have been studied.These S-benzylisothiouronium salts dissociated into two parent reactant ions: (i) alkylbenzenesulphonic acid and (ii) S-benzylisothiourea.The characteristic fragmentation patterns of alkylbenzenesulphonic acids (0-5 substituted alkyls) were studied and compared with those of the parent ion peak hydrocarbons.The intensity of the molecular decreased with the increase in the molecular weight of the sulphonic acids.Desulphonation as well as loss of the alkyl group was observed in all the spectra.Migration of the alkyl group from S to 0, followed by degradation, was also observed in all the spectra studied.

SOLUBILITY OF TOLUENE IN AQUEOUS SODIUM ALKYLBENZENESULFONATE SOLUTIONS.

The solubility of toluene in aqueous solutions of nine substituted sodium benzenesulfonates with short side chains was determined at 25 and 55 degree C using gas chromatography for the analysis of the saturated solutions. Tenax GC, which is used mostly for the separation of high boiling polar compounds, was found suitable for the analysis of aqueous solutions of toluene, a nonpolar, lower boiling compound. The solubility of toluene generally increases with sulfonate concentration except for the lowest members of the series (benzene- and toluenesulfonate) where a slight decrease in solubility (salting out) occurs at low concentrations. Toluene solubility in the aqueous phase generally increases with the number of alkyl carbons on the benzene ring. This work is relevant to oil recovery.