Journal of the Chemical Society - Faraday Transactions p. 1653 - 1658 (1992)
Update date:2022-08-11
Topics:
Jiang, Pei-Yun
Katsumura, Yosuke
Nagaishi, Ryuji
Domae, Masahumi
Ishikawa, Kenichi
et al.
In the pulse radiolysis of concentrated sulfuric acid solutions, the absorption spectrum and the molar absorption coefficient (1600 dm3 mol-1 cm-1) of the sulfate radical are unchanged up to 10 mol dm-3 H2SO4, suggesting that the sulfate radical exists in the dissociated form (SO4-).Two formation processes for the sulfate radical have been directly demonstrated in sulfuric acid and hydrogensulfate solutions: a fast one completed in the duration of the electron pulse, and a slow one occuring over a microsecond time range.For sulfate solutions only the fast formation process is observed.In sulfuric acid solutions the slow formation process is OH + HSO4- -> H2O + SO4- (4.7 x 105 dm3 mol-1 s-1) and OH + H2SO4 -> HSO4 + H2O -> SO4- + H3O+ (1,4 x 107 dm3 mol-1 s-1) and the fast formation process is the direct action of radiation on sulfuric acid with a G value of (2.7 +/- 0.4) x 10-2 molecule eV-1.The yields of (OH + SO4-) and H can be quantified as: G(OH + SO4-) = 2.9fw + 2.7fs and G(H) = 3.7fw + 2.7fs.The yields of SO4- have also been evaluated and the decay kinetics and reactions of the sulfate radical studied.
shanghai Tauto Biotech Co., Ltd
website:http://www.tautobiotech.com/en/index.htm
Contact:+86-21-51320588 ext. 8025
Address:No. 326, Aidisheng Rd , Zhangjiang Hi-tech Park, Shanghai , P.R.CHINA
shanghai jiuling chemical co.,ltd.
Contact:+86-21-50387295
Address:Zaozhuang Road, Pudong, Shanghai City. China
BAODING SINO-CHEM INDUSTRY CO.,LTD
Contact:0312-5956088
Address:NO.8 FUXING ROAD,CHINA
Xiamen XM-Innovation Chemical Co., Ltd
Contact:+86-592-3216205
Address:Unit Q, 11/F, No.1 Office Building, Wuyuan Bay Business Center, Huli District, Xiamen City, Fujian Province, P.R.C
Shanghai Sunway Pharmaceutical Technology Co.,Ltd.
Contact:+86-21-5161 3915
Address:Shanghai YangPu
Doi:10.1039/c6gc03377f
(2017)Doi:10.1021/jacs.8b12832
(2019)Doi:10.1246/cl.1994.527
(1994)Doi:10.1002/aoc.3795
(2017)Doi:10.1039/C39720001202
(1972)Doi:10.1016/0022-1902(63)80210-9
(1963)
