Moodie-Schofield plots

For benzene, the slope of the Moodie-Schofield plot is 1.0 in the (narrow) range 63-68 wt% H2S04, but the slope increases to 1.2 at higher acidity [68JCS(B)800]. This may diminish the utility of a comparison of... 

Figure 6.20 Plot of log k vs. cr + for the Beckmann rearrangement of acetophenone oximes in 98.2 percent sulfuric acid at 80°C. From B. J. Gregory, R. B. Moodie, and K. Schofield, J. Chem. Soc., 13, 338 (1970). Reprinted by permission of K. Schofield and The Chemical Society.

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