Sur Le Spectre Ultraviolet De l'ACIDE Peracéetique Et l'HYDROLYSE Des Peracétates

Giguère, Paul A.; Olmos, Andrea

doi:10.1139/v56-092

Cited by 18 publications

(6 citation statements)

References 2 publications

(3 reference statements)

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“…However, Giguère and Olmos [26] have reported peracetic acid spectra in both aqueous and isooctane solution, which appear very similar to each other and to our data (see Fig. 2).…”

Section: Peracetic Acidsupporting

confidence: 91%

“…Both of these studies indicate the likelihood of contribution to the spectrum from the dimer, but insufficient details are given to make any quantitative assessment. The liquid phase acetic acid spectrum of Giguère and Olmos [26], reported over the range 225-245 nm, also resembles more closely that of the dimer than that of the monomer. The spectrum reported by Barnes et al [23], attributed to the monomer, is very similar in shape and magnitude to our monomer spectrum.…”

Section: (C)) Values Of A(λ)mentioning

confidence: 64%

“…Gas phase peracetic acid spectra at 298 K (solid line, this work) and 248 K (dashed line, this work). Other data shown are for peracetic acid in isooctane solution (diamonds [26] actinic region beyond 290 nm) means that photolysis will not contribute to the tropospheric destruction of acetic acid.…”

Section: (C)) Values Of A(λ)mentioning

confidence: 99%

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Gas phase UV absorption spectra for peracetic acid, and for acetic acid monomers and dimers

Orlando

Tyndall

2003

Journal of Photochemistry and Photobiology A: Chemistry

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Absorption cross sections have been determined in the UV spectral region (205-350 nm) for gas phase acetic acid (CH 3 C(O)OH) in its monomeric and dimeric forms (270-345 K), as well as for peracetic acid (CH 3 C(O)OOH, 248 and 298 K). Analysis of acetic acid spectra recorded over a range of pressures (0.12-3.6 Torr), coupled with a prior knowledge of the dimerization equilibrium constant, allowed for the deconvolution of the monomer and dimer absorption spectra. The 298 K monomer spectrum consists of a maximum near 207 nm (σ = 1.4 × 10 −19 cm 2 per molecule), with monotonically decreasing cross sections at longer wavelengths. The dimer spectrum possesses a maximum located short of 205 nm, with a peak intensity about double that of the monomer. The first gas phase spectrum of peracetic acid is also reported, which is similar to a previously published solution-phase spectrum. Measurable absorption extends to 340 nm at 298 K, and it is determined that the tropospheric photolysis of this species will be a reasonably rapid process (lifetime ≈ weeks), which will play at least a minor role in its atmospheric destruction.

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“…However, Giguère and Olmos [26] have reported peracetic acid spectra in both aqueous and isooctane solution, which appear very similar to each other and to our data (see Fig. 2).…”

Section: Peracetic Acidsupporting

confidence: 91%

Section: (C)) Values Of A(λ)mentioning

confidence: 64%

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Gas phase UV absorption spectra for peracetic acid, and for acetic acid monomers and dimers

Orlando

Tyndall

2003

Journal of Photochemistry and Photobiology A: Chemistry

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“…De plus, on les a longtemps confondus avec les peroxyhydrates descarbonates ou bicarbonates alcalins qui, eux aussi, dkgagent de l'oxygene actif par hydrolyse. Le test dit de Riesenfeld-Liebhafsky (31, qui a servi pendant longtemps a distinguer entre les persels et les peroxyhydrates, n'a en fait de valeur absolue que lorsqu'il est positif (4,5). Aujourd'hui, grlce aux methodes physiques comme la spectroscopie, on peut distinguer entre les vrais percarbonates et les carbonates peroxyhydratb.…”

Section: Introductionunclassified

Etude spectroscopique des dérivés du peroxyde d'hydrogène. V. Les percarbonates KHCO₄ et K₂C₂O₆

Giguère¹,

Lemaire²

1972

Can. J. Chem.

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The two percarbonates KHCO, and K2C,06 were prepared by chemical or electrolytic methods in order to measure their infrared and Raman spectra. The permonocarbonate is unstable and very hygroscopic. The HCO; anion forms quite strong intermolecular hydrogen bonds, although somewhat less so than the bicarbonate anion. As for the C,O:-anion, the rather small number of its infrared and Raman bands suggests a planar and centrosymmetric configuration. In both percarbonates the 0-0 vibration shows nearly the same frequency as in H,O,, presumably due to coupling with neighboring vibrations. For comparison purposes the peroxyhydrate K,C0,.3H20, was studied likewise.

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“…It is interesting, in this respect, that the molar absorptivity of acetyl peroxide is about six times higher than that of peracetic acid. [22,23] It seems that the replacement of a hydrogen by a second COCH 3 or B(OH) 3 has a similar influence on the electronic transitions taking place. This differs from the effect of a second tertbutyl group on tert-butyl hydroperoxide where the second substituent lowers the molar absorptivity.…”

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confidence: 99%

Photochemistry of Peroxoborates: Borate Inhibition of the Photodecomposition of Hydrogen Peroxide

Rey

Davies

2006

Chemistry A European J

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The UV absorbance and photochemical decomposition kinetics of hydrogen peroxide in borate/boric acid buffers were investigated as a function of pH, total peroxide concentration, and total boron concentration. At higher pH borate/boric acid inhibits the photodecomposition of hydrogen peroxide (molar absorptivity and quantum yield of H(2)O(2) and HO(2) (-), (19.0+/-0.3) M(-1) cm(-1) and 1, and (237+/-7) M(-1) cm(-1) and 0.8+/-0.1, respectively). The results are consistent with the equilibrium formation of the anions monoperoxoborate, K(BOOH)=[H(+)][HOOB(OH)(3) (-)]/([B(OH)(3)][H(2)O(2)]), 2.0 x 10(-8), R. Pizer, C. Tihal, Inorg. Chem. 1987, 26, 3639-3642, and monoperoxodiborate, K(BOOB)=[BOOB(2-)]/([B(OH)(4) (-)][HOOB(OH)(3) (-)]), 1.0+/-0.3 or 4.3+/-0.9, depending upon the conditions, with molar absorptivity, (19+/-1) M(-1) cm(-1) and (86+/-15) M(-1) cm(-1), respectively, and respective quantum yields, 1.1+/-0.1 and 0.04+/-0.04. The low quantum yield of monoperoxodiborate is discussed in terms of the slower diffusion apart of incipient (.)OB(OH)(3) (-) radicals than may be possible for (.)OH radicals, or a possible oxygen-bridged cyclic structure of the monoperoxodiborate.

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Sur Le Spectre Ultraviolet De l'ACIDE Peracéetique Et l'HYDROLYSE Des Peracétates

Abstract: not available

Cited by 18 publications

References 2 publications

Gas phase UV absorption spectra for peracetic acid, and for acetic acid monomers and dimers

Gas phase UV absorption spectra for peracetic acid, and for acetic acid monomers and dimers

Etude spectroscopique des dérivés du peroxyde d'hydrogène. V. Les percarbonates KHCO₄ et K₂C₂O₆

Photochemistry of Peroxoborates: Borate Inhibition of the Photodecomposition of Hydrogen Peroxide

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Sur Le Spectre Ultraviolet De l'ACIDE Peracéetique Et l'HYDROLYSE Des Peracétates

Abstract: not available

Cited by 18 publications

References 2 publications

Gas phase UV absorption spectra for peracetic acid, and for acetic acid monomers and dimers

Gas phase UV absorption spectra for peracetic acid, and for acetic acid monomers and dimers

Etude spectroscopique des dérivés du peroxyde d'hydrogène. V. Les percarbonates KHCO4 et K2C2O6

Photochemistry of Peroxoborates: Borate Inhibition of the Photodecomposition of Hydrogen Peroxide

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Etude spectroscopique des dérivés du peroxyde d'hydrogène. V. Les percarbonates KHCO₄ et K₂C₂O₆