Observations on the interpretation and analysis of sulfuric acid hydrate infrared spectra

Karen L. Nash; K. Jessica Sully; Andrew B. Horn

doi:10.1021/jp0114541

Observations on the interpretation and analysis of sulfuric acid hydrate infrared spectra

Karen L. Nash, K. Jessica Sully, Andrew B. Horn

Research output: Contribution to journal › Article › peer-review

Abstract

New infrared spectra of pure bulk molecular sulfuric acid and its mono- and tetrahydrates under equilibrium water partial pressure conditions have been obtained using an internal reflection geometry. For each of the species present (H2SO4, HSO4- and SO42-), a well-defined set of core SO4 vibrations has been identified and assigned to individual vibrational modes. Using these data, earlier literature data has been reexamined. Existing methods for the quantification of composition and ion speciation in H2SO4/H2O mixtures are examined and the need for a more sophisticated method for the determination of sulfate aerosol composition is proposed.

Original language	English
Pages (from-to)	9422-9426
Number of pages	4
Journal	Journal of Physical Chemistry A
Volume	105
Issue number	41
DOIs	https://doi.org/10.1021/jp0114541
Publication status	Published - 18 Oct 2001

Keywords

Isotope effect (deuterium; observations on interpretation and anal. of sulfuric acid hydrate IR spectra); IR spectra; Molecular vibration (observations on interpretation and anal. of sulfuric acid hydrate IR spectra)

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10.1021/jp0114541

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title = "Observations on the interpretation and analysis of sulfuric acid hydrate infrared spectra",

abstract = "New infrared spectra of pure bulk molecular sulfuric acid and its mono- and tetrahydrates under equilibrium water partial pressure conditions have been obtained using an internal reflection geometry. For each of the species present (H2SO4, HSO4- and SO42-), a well-defined set of core SO4 vibrations has been identified and assigned to individual vibrational modes. Using these data, earlier literature data has been reexamined. Existing methods for the quantification of composition and ion speciation in H2SO4/H2O mixtures are examined and the need for a more sophisticated method for the determination of sulfate aerosol composition is proposed.",

keywords = "Isotope effect (deuterium; observations on interpretation and anal. of sulfuric acid hydrate IR spectra); IR spectra; Molecular vibration (observations on interpretation and anal. of sulfuric acid hydrate IR spectra)",

author = "Nash, {Karen L.} and {Jessica Sully}, K. and Horn, {Andrew B.}",

year = "2001",

month = oct,

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doi = "10.1021/jp0114541",

language = "English",

volume = "105",

pages = "9422--9426",

journal = "The Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory",

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TY - JOUR

T1 - Observations on the interpretation and analysis of sulfuric acid hydrate infrared spectra

AU - Nash, Karen L.

AU - Jessica Sully, K.

AU - Horn, Andrew B.

PY - 2001/10/18

Y1 - 2001/10/18

N2 - New infrared spectra of pure bulk molecular sulfuric acid and its mono- and tetrahydrates under equilibrium water partial pressure conditions have been obtained using an internal reflection geometry. For each of the species present (H2SO4, HSO4- and SO42-), a well-defined set of core SO4 vibrations has been identified and assigned to individual vibrational modes. Using these data, earlier literature data has been reexamined. Existing methods for the quantification of composition and ion speciation in H2SO4/H2O mixtures are examined and the need for a more sophisticated method for the determination of sulfate aerosol composition is proposed.

AB - New infrared spectra of pure bulk molecular sulfuric acid and its mono- and tetrahydrates under equilibrium water partial pressure conditions have been obtained using an internal reflection geometry. For each of the species present (H2SO4, HSO4- and SO42-), a well-defined set of core SO4 vibrations has been identified and assigned to individual vibrational modes. Using these data, earlier literature data has been reexamined. Existing methods for the quantification of composition and ion speciation in H2SO4/H2O mixtures are examined and the need for a more sophisticated method for the determination of sulfate aerosol composition is proposed.

KW - Isotope effect (deuterium; observations on interpretation and anal. of sulfuric acid hydrate IR spectra); IR spectra; Molecular vibration (observations on interpretation and anal. of sulfuric acid hydrate IR spectra)

U2 - 10.1021/jp0114541

DO - 10.1021/jp0114541

M3 - Article

VL - 105

SP - 9422

EP - 9426

JO - The Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory

JF - The Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory

SN - 1089-5639

IS - 41

ER -

Observations on the interpretation and analysis of sulfuric acid hydrate infrared spectra

Abstract

Keywords

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