A laser flash photolysis study of nitrous acid in the aqueous phase

Ouyang, B and Dong, WB and Hou, HQ (2005) A laser flash photolysis study of nitrous acid in the aqueous phase. Chemical Physics Letters, 402 (4-6). pp. 306-311. ISSN 0009-2614

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Abstract

The OH quantum yield from the photolysis of nitrous acid in the aqueous phase by the 355 nm light was measured to be 0.25 ± 0.03. OH radical thus formed reacted readily with HNO2 to produce NO2, which sequentially reacted with HNO2 to form the HNO2–NO2 adduct. The NO2 + HNO2 reaction was reversible with a forward rate constant of 3.76 × 107 dm3 mol−1 s−1 and a backward rate constant of 1.06 × 105 s−1. Decay of the HNO2–NO2 adduct would most likely generate HNO3 and NO at a rate constant of 3.0 × 103 s−1.

Item Type:
Journal Article
Journal or Publication Title:
Chemical Physics Letters
ID Code:
135604
Deposited By:
Deposited On:
22 Jul 2019 08:30
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 12:08