The radiation-induced formation of NO3 in aqueous solutions

Broszkiewicz, R.K.

doi:10.1016/0020-708x(67)90169-x

Cited by 21 publications

(23 citation statements)

References 15 publications

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“…Moreover, it seems reasonable that the photolysis at longer wavelenghts decreases the quantum yield instead of increasing it. As a consequence our results seem to be more consistent with those of Wine et al [ l l ] rather than those of Stevens and Martin [23]. However, the present data are not contradictory to the assumption of unity quantum yield made by Stevens and Martin.…”

Section: % Absorptionsupporting

confidence: 89%

“…No absolute absorption coefficients were determined in this work. An absorption band near 340 nm obtained in this spectrum has been suggested to be due to N204, not NO, [20,23]. There are also some studies using the pulsradiolytic generation of NO3 and from which some information on the absorption spectrum was derived [2][3][4]23,24].…”

Section: Absorption Coefficients Of No3 In the Wavelengthmentioning

confidence: 98%

“…To our knowledge no literature data for the absolute quantum yields of NO3 formation from cerium-IV-ammonium nitrate photolysis are available for comparison. Stevens and Martin [12] determined a ratio of quantum yields of 0.46:0.92: 1.00 for 1, 3 and 6 mol/l H N 0 3 in the photolysis at 347 nm [23]. They suggested that the quantum yield may be unity at high nitric acid concentrations, but no proof for this assumption was given.…”

Section: % Absorptionmentioning

confidence: 99%

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The Absorption Spectrum of the Nitrate (NO₃) Radical in Aqueous Solution

Herrmann

Exner

Zellner

1991

Ber Bunsenges Phys Chem

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Absorption coefficients for the nitrate (NO3) radical in aqueous solution have been determined using multichannel optical absorption in the range λ = 540 – 760 nm. NO3 radicals were generated by excimer laser photolysis of (NH4)2[Ce(NO3)6] at 351 nm. For the quantum yield of NO3 formation from this process a value of ϕ(NO3) = (0.85 ± 0.09) has been determined using a Br− scavenging technique. With this value the absolute absorption coefficient of NO3 at the maximum of its absorption at 635 nm was found as ϵ = (527 ± 105) l/mol · cm (base 10). Absorption coefficient data for the range 540–760 nm are presented in 2 nm intervals. The oscillator strength of the (0‐0) band transition near 665 nm has been calculated to be (1.6 ± 0.5) · 10−3 in reasonable agreement with the gas phase value.

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Section: % Absorptionsupporting

confidence: 89%

Section: Absorption Coefficients Of No3 In the Wavelengthmentioning

confidence: 98%

Section: % Absorptionmentioning

confidence: 99%

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The Absorption Spectrum of the Nitrate (NO₃) Radical in Aqueous Solution

Herrmann

Exner

Zellner

1991

Ber Bunsenges Phys Chem

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“…Nevertheless, the reaction between NO 3 À and 1OH is considered as very slow, k 25 ¼(2-10)×10 5 s À 1 (Broszkiewicz, 1967;Daniels, 1969). Finally, in concentrated solution of nitric acid (42 mol L À 1 ), there is a fast reaction between HNO 3 and 1OH radical, k ¼1.4 Â 10 8 mol À 1 L s À 1 (Katsumura et al, 1991).…”

Section: G(h 2 O 2 ) Determinationmentioning

confidence: 98%

“…(39) and(40))(Broszkiewicz, 1967;Buxton et al, 1986;Buxton et al, 1988;Grätzel et al, 1969;Rabani and Stein, 1962;Vione …”

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confidence: 94%

Alpha radiolysis of nitric acid and sodium nitrate with 4He2+ beam of 13.5MeV energy

Garaix

Venault

Costagliola

et al. 2015

Radiation Physics and Chemistry

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Pulsradiolytische Beobachtungen über die Reduktion des NO₃⁻‐Ions und über Bildung und Zerfall der persalpetrigen Säure in wäßriger Lösung

Grätzel¹,

Henglein²,

Taniguchi³

1970

Ber Bunsenges Phys Chem

200

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Das Nitration reagiert mit dem hydratisierten Elektron zu NO32‐. Dieses Teilchen absorbiert maximal bei 2500 Å mit = 3,1 ± 103 M−1 cm−1. Seine Leitfähigkeit beträgt 137 Ω−1 cm2 mol−1. In alkalischer Lösung verschwindet es mit δ1/2 = 12,5 μs nach: NO32‐ + H2O ± NO2 + 2 OH−. In saurer Lösung nimmt es Protonen auf bis zur Erreichung der Gleichgewichte: Das OH‐Radikal reagiert mit NO2 zu persalpetriger Säure, HO2NO, mit k = 1,3 · 109 M−1 s−1. Der pK‐Wert der persalpetrigen Säure wurde zu 5,3 bestimmt. HO2NO verschwindet nach erster Ordnung aus der Lösung, indem sich die undissoziierte Form spontan zu Salpetersäure, HNO3, umlagert, während das Anion der persalpetrigen Säure stabil ist. Die Geschwindigkeitskonstante der Isomerisierung

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The radiation-induced formation of NO3 in aqueous solutions

Cited by 21 publications

References 15 publications

The Absorption Spectrum of the Nitrate (NO₃) Radical in Aqueous Solution

The Absorption Spectrum of the Nitrate (NO₃) Radical in Aqueous Solution

Alpha radiolysis of nitric acid and sodium nitrate with 4He2+ beam of 13.5MeV energy

Pulsradiolytische Beobachtungen über die Reduktion des NO₃⁻‐Ions und über Bildung und Zerfall der persalpetrigen Säure in wäßriger Lösung

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The radiation-induced formation of NO3 in aqueous solutions

Cited by 21 publications

References 15 publications

The Absorption Spectrum of the Nitrate (NO3) Radical in Aqueous Solution

The Absorption Spectrum of the Nitrate (NO3) Radical in Aqueous Solution

Alpha radiolysis of nitric acid and sodium nitrate with 4He2+ beam of 13.5MeV energy

Pulsradiolytische Beobachtungen über die Reduktion des NO3−‐Ions und über Bildung und Zerfall der persalpetrigen Säure in wäßriger Lösung

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The Absorption Spectrum of the Nitrate (NO₃) Radical in Aqueous Solution

The Absorption Spectrum of the Nitrate (NO₃) Radical in Aqueous Solution

Pulsradiolytische Beobachtungen über die Reduktion des NO₃⁻‐Ions und über Bildung und Zerfall der persalpetrigen Säure in wäßriger Lösung