Yields of Hydroxyl Radical and Hydrated Electron Scavenging Reactions in Aqueous Solutions of Biological Interest

1993 ◽  
Vol 135 (1) ◽  
pp. 16 ◽  
Author(s):  
Jay A. LaVerne ◽  
Simon M. Pimblott
Keyword(s):  
Aqueous Solutions ◽  
Hydroxyl Radical ◽  
Hydrated Electron ◽  
Biological Interest

Radiolysis studies on the corrosion inhibitors 1 -hexyn-3-ol, cinnamonitrile, and 1,3-diethyl-2-thiourea

1995 ◽  
Vol 73 (12) ◽  
pp. 2137-2142 ◽  
Author(s):  
A.J. Elliot ◽  
M.P. Chenier ◽  
D.C. Ouellette
Keyword(s):  
Hydrogen Atom ◽  
Hydroxyl Radical ◽  
Temperature Dependence ◽  
Rate Constant ◽  
Rate Constants ◽  
Corrosion Inhibitors ◽  
Hydrated Electron

In this publication we report: (i) the rate constants for reaction of the hydrated electron with 1-hexyn-3-ol ((8.6 ± 0.3) × 108 dm3 mol−1 s−1 at 18 °C), cinnamonitrile ((2.3 ± 0.2) × 1010 dm3 mol−1 s−1 at 20 °C), and 1,3-diethyl-2-thiourea ((3.5 ± 0.3) × 108 dm3 mol−1 s−1 at 22 °C). For cinnamonitrile and diethylthiourea, the temperature dependence up to 200 °C and 150 °C, respectively, is also reported; (ii) the rate constants for the reaction of the hydroxyl radical with 1-hexyn-3-ol ((5.5 ± 0.5) × 109 dm3 mol−1 s−1 at 20 °C), cinnamonitrile ((9.2 ± 0.3) × 109 dm3 mol−1 s−1 at 21 °C), and diethylthiourea ((8.0 ± 0.8) × 108 dm3 mol−1 s−1 at 22 °C). For cinnamonitrile, the temperature dependence up to 200 °C is also reported; (iii) the rate constant for the hydrogen atom reacting with 1-hexyn-3-ol ((4.3 ± 0.4) × 109 dm3 mol−1 s−1 at 20 °C). Keywords: radiolysis, corrosion inhibitors, rate constants.

Hydroxyl radical-induced crosslinking and radiation-initiated hydrogel formation in dilute aqueous solutions of carboxymethylcellulose

2014 ◽  
Vol 112 ◽  
pp. 412-415 ◽  
Author(s):  
Radoslaw A. Wach ◽  
Bozena Rokita ◽  
Nina Bartoszek ◽  
Yosuke Katsumura ◽  
Piotr Ulanski ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Hydroxyl Radical ◽  
Hydrogel Formation ◽  
Dilute Aqueous Solutions

Conductometric Pulse Radiolysis Study on the Reaction of the Solvated Electron with 5-Bromouracil in Aqueous Solutions at Different pH Values

1974 ◽  
Vol 29 (1-2) ◽  
pp. 86-88b ◽  
Author(s):  
Burkhard O. Wagner ◽  
Herbert Klever ◽  
Dietrich Schulte-Frohlinde
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Atom ◽  
Aqueous Solutions ◽  
Hydroxyl Radical ◽  
Rate Constant ◽  
Pulse Radiolysis ◽  
Solvated Electron ◽  
Ph Values

To study the reaction of the solvated electron with 5-bromouracil an aqueous solution has been examined by conductometric pulse radiolysis at pH values between 4.68 and 8.74. Alcohol was added to scavenge the hydrogen atom and the hydroxyl radical. G(Br—) = (2.64 ± 0.08)/100 eV was found to be independent of the pH. The mobility of the bromouracil mono-anion was measured to be (2.7 ± 0.2) 10-4 cm2 V-1 s-1 at 20°C, and the rate constant of reaction (3b) was determined to be k(H+ BrUr-) = (2.3 ± 0.2) 1010 I mole-1 s-1*.

Radiolysis of aqueous solutions with pulsed helium ion beams—2. Yield of SO4− formed by scavenging hydrated electron as a function of S2O2−8 concentration

1999 ◽  
Vol 54 (4) ◽  
pp. 385-391 ◽  
Author(s):  
Norihisa Chitose ◽  
Yosuke Katsumura ◽  
Masafumi Domae ◽  
Zhihua Zuo ◽  
Takeshi Murakami
Keyword(s):  
Aqueous Solutions ◽  
Ion Beams ◽  
Hydrated Electron ◽  
Helium Ion
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