138-29-4 Usage
Uses
Used in Organic Synthesis:
3-Ethylbenzenesulfonic acid is used as a catalyst and reagent in organic synthesis for its ability to facilitate various chemical reactions. Its sulfonic acid functional group contributes to its reactivity and utility in the production of dyes and pharmaceuticals.
Used in Chemical Production:
In the chemical industry, 3-Ethylbenzenesulfonic acid serves as an intermediate in the manufacture of surfactants, detergents, and other industrial chemicals. Its presence in these processes is crucial for the development of products with specific properties and applications.
Used in Pharmaceutical Industry:
3-Ethylbenzenesulfonic acid is utilized in the pharmaceutical sector as a component in the synthesis of certain drugs. Its role in this industry highlights its versatility and importance in the development of medicinal compounds.
Used in Dye Production:
3-ETHYLBENZENESULFONIC ACID is also employed in the production of dyes, where its chemical properties are leveraged to create a range of colorants for various applications, including textiles, plastics, and printing inks.
Used in Detergent and Surfactant Manufacturing:
3-Ethylbenzenesulfonic acid plays a significant role in the formulation of detergents and surfactants, contributing to their cleaning and emulsifying properties. Its presence in these products is essential for their effectiveness in various cleaning applications.
Check Digit Verification of cas no
The CAS Registry Mumber 138-29-4 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 8 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138-29:
(5*1)+(4*3)+(3*8)+(2*2)+(1*9)=54
54 % 10 = 4
So 138-29-4 is a valid CAS Registry Number.
138-29-4Relevant articles and documents
HYDROLYSIS OF AROMATIC SULFONIC ACIDS UNDER THERMODYNAMIC CONTROL OF THE REACTION
Krylov, E. N.,Volgina, L. V.,Isaeva, G. Yu.
, p. 1129 - 1133 (2007/10/02)
Linear mathematical models which describe the hydrolysis of alkyl- and halobenzenesulfonyl acids under the conditions for their isomerization in sulfuric acid have been obtained by the method of mathematical experiment planning.The value of the effective rate constants of hydrolysis calculated according to the models for comparative conditions (150 deg C, 3 moles of 85percent sulfuric acid) were used to obtain the correlation between log kh and the ? constants of the substituents.The correlation corresponds the electrophilic nature of the hydrolysis process (ρ = -4.69).The strong influence of the electronic effects of the substituents on the rate of hydrolysis is an indication of the development of a considerable positive charge on the reaction center in the transition state.
