Temperature dependence of the rate constants for reactions of the sulfate radical, SO sub 4 sup minus , with anions

Journal Article · Thu Nov 15 00:00:00 EST 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100386a015· OSTI ID:6081943

Huie, R E; Clifton, C L ^[1]

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1. National Institute of Standards and Technology, Gaithersburg, MD (USA)

Rate constants have been measured as a function of temperature over the range 10-60{degree}C for the reactions of the sulfate radical, SO{sub 4}{sup {minus}}, with azide, chloride, cyanate, cyanide, acetate, and carbonate anions. Room-temperature rate constants ranged from about 5 {times} 10{sup 6} to 5 {times} 10{sup 9} M{sup {minus}1} s{sup {minus}1}. The variation of the rate constant with substrate depended mainly on the Arrhenius preexponential factor and less on the activation energy. For the reaction of SO{sub 4}{sup {minus}} with Cl{sup {minus}}, the dependence of the rate constant on ionic strength was determined to be in agreement with the theoretical prediction.

• OSTI ID: 6081943
• Journal Information: Journal of Physical Chemistry; (USA), Vol. 94:23; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ACETATES
REACTION KINETICS
AZIDES
CARBONATES
CHLORIDES
CYANATES
CYANIDES
SULFATES
ACTIVATION ENERGY
ARRHENIUS EQUATION
EXPERIMENTAL DATA
MEDIUM TEMPERATURE
PHOTOLYSIS
RADICALS
TEMPERATURE DEPENDENCE
CARBON COMPOUNDS
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACID SALTS
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
DATA
DECOMPOSITION
ENERGY
EQUATIONS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
KINETICS
NITROGEN COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
SULFUR COMPOUNDS
400201* - Chemical & Physicochemical Properties