Typical Reactivity Scales

The concept of reactivity scales is based on ranking organics in terms of their potential for ozone production. A number of different parameters have been used to rank organics by their reactivity, including observed rates of reaction, product yields, and effects observed from irradiated VOC-NOx mixtures. For example, the rates of 03 or N02 formation or the hydrocarbon loss have been used to develop reactivity scales, as have the yields or dosages of products such as 03 and PAN in

TABLE 16.5 OH Reactivity Scale for Hydrocarbons

(298 K)


Typical hydrocarbons

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