89690-47-1

Basic information

• Product Name: Benzenesulfonic acid, 3,4-dichloro-, potassium salt
• CAS NO: 89690-47-1
• Molecular Formula: C6H4Cl2O3S.K
• Molecular Weight: 265.158
• Mol File: 89690-47-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Benzenesulfonic acid, 3,4-dichloro-, potassium salt(CAS DataBase Reference)
• NIST Chemistry Reference: Benzenesulfonic acid, 3,4-dichloro-, potassium salt(89690-47-1)
• EPA Substance Registry System: Benzenesulfonic acid, 3,4-dichloro-, potassium salt(89690-47-1)

Safety Data

• Hazardous Substances Data: 89690-47-1(Hazardous Substances Data)

Upstream product

• 10234-03-4 potassium p-methoxybenzenesulfonate 
• 89690-48-2 3,4-Dichloro-benzenesulfonic acid methyl ester 
• 934-55-4 potassium benzenesulfonate 
• 78135-07-6 4-chloro-benzenesulfonic acid ; potassium-salt 
• 16106-44-8 potassium tosylate 

Downstream Products

• 16106-44-8 potassium tosylate 
• 89690-48-2 3,4-Dichloro-benzenesulfonic acid methyl ester 
• 934-55-4 potassium benzenesulfonate 
• 78135-07-6 4-chloro-benzenesulfonic acid ; potassium-salt 
• 10234-03-4 potassium p-methoxybenzenesulfonate 

Relevant articles and documents

Methyl Transfers. 8. The Marcus Equation and Transfer between Arenesulfonates

Using a 35S label, rates of identity methyl-transfer reactions XC6H4*SO3(1-) + CH3O3SC6H4X -> XC6H4*SO3CH3 + XC6H4SO3(1-) in sulfolane have been measured.For all five cases, these identity rates fit the Hammett equation with the rather large ρ of +0.6.Rates and equilibria for XC6H5SO3Me + 3,4-Cl2C6H3SO3(1-) have been measured.The fit to the Marcus equation using averages of the experimental identity rates for the intrinsic rate is perfect, within experimental error.The absolute values of ρ for the forward and reverse reactions differ by an amount quantitatively consistent with the nonzero identity reaction ρ.The significance of the identity reaction ρ > 0 is discussed.