A pulse radiolysis technique was used to measure the UV absorption spectra of c-C₄H₇O₂ and (c-C₄H₇O₂)O₂ radicals over the range 220-320 nm, σ(c-C₄H₇O₂)_{250 nm} = (5.9 ± 0.6) × 10^-18 and σ[(c-C₄H₇O₂)O₂]_{240 nm} = (4.8 × 0.8) × 10^-18 cm² molecule^-1. The observed self-reaction rate constants for the c-C₄H₇O₂ and (c-C₄H₇O₂)O₂ radicals, defined as -d[c-C₄H₇O₂]/dt = 2k₄[c-C₄H₇O₂]² and -d[(c-C₄H₇O₂)O₂]/dt = 2k_{5 obs[}(c-C₄H₇O₂)O₂]² were k₄ = (3.3 ± 0.4) × 10^-11 and k_{5 obs} = (7.3 ± 1.2) × 10^-12 cm³ molecule^-1 s^-1. The rate constants for reactions of (c-C₄H₇O₂)O₂ radicals with NO and NO₂ were k₆ (1.2 ± 0.3) × 10^-11 and k₇ = (1.3 ± 0.3) × 10^-11 cm³ molecule^-1 s^-1, respectively. The rate constants for the reaction of F atoms with 1,4-dioxane and the reaction of c-C₄H₇O₂ radicals with O₂, were k₃ = (2.4 ± 0.7) × 10^-10 and k₂ = (8.8 ± 0.9) × 10^-12 cm³ molecule^-1 s^-1, respectively. A relative rate technique was used to measure the rate constant for the reaction of Cl atoms with 1,4-dioxane, k₁₇ = (2.0 ± 0.3) × 10^-10 cm³ molecule^-1 s^-1. A long-pathlength FTIR spectrometer coupled to a smog chamber system was used to show that the sole atmospheric fate of the alkoxy radical (c-C₄H₇O₂)O is decomposition via C-C bond scission leading to the formation of H(O)COCH₂CH₂OC(O)H (ethylene glycol diformate).