5187-79-1

Basic information

• Product Name: Azoxybenzene-4,4'-disulphonamide
• Synonyms: Azoxybenzene-4,4'-disulphonamide
• CAS NO: 5187-79-1
• Molecular Weight: 356.383
• Mol File: 5187-79-1.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Azoxybenzene-4,4'-disulphonamide(CAS DataBase Reference)
• NIST Chemistry Reference: Azoxybenzene-4,4'-disulphonamide(5187-79-1)
• EPA Substance Registry System: Azoxybenzene-4,4'-disulphonamide(5187-79-1)

Safety Data

• Hazardous Substances Data: 5187-79-1(Hazardous Substances Data)

Upstream product

• 63-74-1 sulfanilamide 
• 27049-51-0 4-nitro-N-(1,3,3-trimethyl-1,3-dihydro-indol-2-ylidene)-benzenesulfonamide 
• 144-80-9 sulphaacetamide 
• 7722-84-1 dihydrogen peroxide 
• 64-19-7 acetic acid 
• 7647-01-0 hydrogenchloride 
• 7664-93-9 sulfuric acid 
• 877-67-8 4-(hydroxyamino) benzene sulfonamide 
• 15719-64-9 methylammonium carbonate 
• 7732-18-5 water 

Downstream Products

• 4392-55-6 hydrazobenzene-4,4'-disulfonamide 
• 63-74-1 sulfanilamide 

Relevant articles and documents

-

-

Kinetics and Mechanism of Oxidation of Sulphanilamide, Sodium Sulphacetamide, Sulphasomidine, Sulphaguanidine, Sulphadiazine, Sulphapyridine and Sulphamethiazole by Peroxydisulphate Ion

The kinetics of oxidation of seven sulpha drugs, viz. sulphanilamide, sodium sulphacetamide, sulphasomidine, sulphaguanidine, sulphadiazine, sulphapyridine and sulphamethazole by peroxydisulphate ion have been followed iodometrically.The reaction follow second order kinetics, first order in each reactant.The salt effect is found to be of primary linear type.The reaction is very sensitive to pH and the rate increases with increase in pH and becomes constant after a certain value of pH in each case.The rate decreases with decrease in the dielectric constant of the medium, and the plot between log k2 and D-1 is linear.Reaction is appreciably inhibited by the presence of diphenyl picryl hydrazyl (DPPH).The product of oxidation characterised in each case is the corresponding azoxybenzene derivative.The various thermodynamic parameters are reported.A suitable mechanism involving free radicals has been proposed and the corresponding rate law derived.