M Aldehydes And Ketones

240 260 280 300 320 340 360 X (nm)

FIGURE 4.26 Absorption spectrum of HCHO at room temperature (adapted from Rogers, 1990).

240 260 280 300 320 340 360 X (nm)

FIGURE 4.26 Absorption spectrum of HCHO at room temperature (adapted from Rogers, 1990).

Table 4.24 summarizes absorption cross sections for HCHO averaged over 2.5-nm intervals centered at the wavelengths shown.

HCHO photolyzes to form two sets of products, one free radical in nature and one set of stable products:

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