Die Dynamik der Formaldehyd-Bisulfit-Reaktion

Skrabal, Anton; Skrabal, R.

doi:10.1007/bf01670366

Cited by 13 publications

(8 citation statements)

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“…The correlation coefficients r, relating time, and log of concentration ranged from 0.997-0.999 for all data sets, indicating a high degree of linearity. The raw kinetic data is available from the authors for further study.The kinetics of HMSA formation have been studied previously byWagner [1929],Skrabal and Skrabal [1936]…”

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confidence: 99%

Kinetics of the formation and decomposition of hydroxymethanesulfonate

Kok¹,

Gitlin²,

Lazrus³

1986

J. Geophys. Res.

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The kinetics of the formation and decomposition of hydroxymethanesulfonate (HMSA) have been examined at pH 4 and 5. The second‐order rate constant for the formation of HMSA at 25°C was measured to be 1.94 ± 0.11 and 12.60 ± 1.04 mol−1 s−1 at pH values of 4 and 5, respectively. The rate constant of HMSA decomposition to form formaldehyde (HCHO) and aqueous sulfur dioxide S(IV) at pH 4 and 5 was 4.8 ± 0.4 × 10−7 and 3.5 ± 0.2 × 10−6 s−1, respectively. In addition, no reaction between hydrogen peroxide (H2O2) and HMSA was observed when a tenfold molar excess of H2O2 was present at pH values of 4 and 5.

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confidence: 99%

Kinetics of the formation and decomposition of hydroxymethanesulfonate

Kok¹,

Gitlin²,

Lazrus³

1986

J. Geophys. Res.

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“…The carboxylate salt keeps the pH of the solution in the range of the pKa of the corresponding acid, as sulfurous acid provides the protons necessary to convert the carboxylate salt into a working buffer. Buffering the absorption medium is necessary for reasons discussed elsewhere (5,8). At the start of absorption, pH in the solution is governed by the carboxylate salt and will be around 8.…”

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confidence: 99%

“…The use of platinum gauze in the construction of a durable thin-layer working electrode has been reported by several research groups (7)(8)(9) but the construction and characteristics of these working electrodes were not described in any detail. In addition, the published thin-layer cyclic voltammograms with the platinum gauze electrodes show poorly defined peaks with large potential separations.…”

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confidence: 99%

Stabilized gravimetric standard for sulfites and sulfur dioxide

Irgum¹

1985

Anal. Chem.

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“…Negative interferences could be caused by compounds that react with either pararosanillne or formaldehyde. Cyanide (29), sulfite (30,31) and hydroxylamine (32) all form stable, well-characterized adducts with formaldehyde. It can be concluded that several common bubbler trapping agents such as sulfite, bisulfite, hydroxylamine, and semicarbazide 0 Line of best fit determined by method of least squares.…”

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confidence: 99%