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Zhang Xu-Jia, Wu Ji-Lan, Ha Hong-Fei. The Kinetics of α-Hydroxyethyl Radical in the Radiolysis of Ethanol-Styrene System[J]. Acta Physico-Chimica Sinica,
;1990, 6(03): 298-302.
doi:
10.3866/PKU.WHXB19900309
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The variations of the G value of the major products (H_2, CH_3CHO, (CH_3CHOH)_2) of the γ-radiolysis of liquid ethanol with the dose absorbed by the ethanol have been measured.
The kineties of α-hydroxyethyl radical reacted with styrene in the ethanol-styrene system has been investigated.
St+CH_3CHOH→P
2CH_3CHOH→(CH_3CHOH)_2
The kinetic equation has been derived as
G'=G_0 k_6/2(k_7) 1/2 (G'/Dk')[Sl]
and we t K_6=4.0×10~4 L·mol~(-1)·s~(-1).
The disproportionation of α-hydroxyethyl radical scarcely occurs and acetaldehyde may come from the fast processes in spur. -
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