29632-98-2 Usage
Description
Sodium 2,5-dihydroxybenzenesulfonate, also known as sodium 2,5-dihydroxybenzenesulfonic acid, is a chemical compound that serves as a sodium salt of a sulfonic acid derivative of 2,5-dihydroxybenzene, commonly referred to as hydroquinone. It is recognized for its antioxidant properties and is widely used across various industries for its beneficial effects in preserving and enhancing the quality of products.
Uses
Used in Food Industry:
Sodium 2,5-dihydroxybenzenesulfonate is used as a stabilizer and antioxidant in various food products to prevent oxidation and extend shelf life, ensuring the freshness and quality of the food items.
Used in Pharmaceutical Industry:
In pharmaceutical applications, sodium 2,5-dihydroxybenzenesulfonate is utilized as an excipient or inactive ingredient in certain formulations, contributing to the stability and effectiveness of the final product.
Used in Cosmetic and Personal Care Industry:
Due to its antioxidant properties, sodium 2,5-dihydroxybenzenesulfonate has potential applications in cosmetic and personal care products, where it can help maintain product quality and provide additional benefits to the users.
Check Digit Verification of cas no
The CAS Registry Mumber 29632-98-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,9,6,3 and 2 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 29632-98:
(7*2)+(6*9)+(5*6)+(4*3)+(3*2)+(2*9)+(1*8)=142
142 % 10 = 2
So 29632-98-2 is a valid CAS Registry Number.
29632-98-2Relevant articles and documents
Kinetics and Mechanism of the Addition of Sulfite to p-Benzoquinone
Youngblood, Michael P.
, p. 1981 - 1985 (1986)
The 1,4-addition of sulfite to p-benzoquinone (BZQ) forming hydroquinone monosulfonate (HQMS) occurs rapidly in neutral solution.From pH 4.5 to 8.0 HQMS is the sole product, and the reaction kinetics are cleanly first order in the quinone.The rapid reversible formation of intermediate carbonyl bisulfite adducts, which precedes irreversible sulfite attack, leads to a complex kinetic dependence on total sulfite concentration and pH (Scheme I and eq. 3).The rate constant for the reaction of sulfite with free benzoquinone to form HQMS is 7.7*104 M-1 s-1 (T = 25 deg C, μ = 0.1).The carbonyl bisulfite adduct is also attacked by sulfite to form HQMS with a rate constant of 1.7*104 M-1 s-1 (T = 25 deg C, μ = 0.1).
