Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Determination of Henry's law constant for elemental mercury
Univ Gothenburg, Dept Chem, Gothenburg, Sweden..
Univ Gothenburg, Dept Chem, Gothenburg, Sweden.;GMV Ctr Environm & Sustainabil, SE-41296 Gothenburg, Sweden..
IVL Swedish Environm Res Inst, Gothenburg, Sweden..
GMV Ctr Environm & Sustainabil, SE-41296 Gothenburg, Sweden..
Responsible organisation
2008 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 73, no 4, 587-592 p.Article in journal (Refereed) Published
Resource type
Text
Abstract [en]

The assessment of the global mercury cycle involves estimations of the evasion of mercury form oceanic waters. In such estimations Henry's law constant is often used. In this study the Henry's law constant for elemental mercury has been re-determined in MQ water and artificial sea water. Moreover, for the first time it has been determined for 1.5 M sodium chloride (NaCl) solution which is of relevance for modeling of atmospheric waters at coastal locations. For all solutions, experiments has been conducted at five different temperatures between 278 and 308 K, using a novel technique, for mercury, based on direct measurements of the portioning of mercury between the aqueous and gaseous phase. Elemental mercury was extracted from the water column and the logarithm of the mass of extracted mercury was plotted against time. A dimensionless Henry's law constant, defined as: k(H') = [Hg((g))]/[Hg((aq))] was obtained from the slope of the curve. Almost no difference was observed in the values comparing the Milli-Q water and artificial sea water, however for the 1.5 M NaCl solution a salting-out effect was seen, i.e. the solubility of mercury in the water phase decreased. The decreased solubility will generate an increase in the value of Henry's law constant. (C) 2008 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2008. Vol. 73, no 4, 587-592 p.
Keyword [en]
aqueous-gaseous equilibrium, direct measurements, novel technique, salting-out, artificial sea water
Identifiers
URN: urn:nbn:se:polar:diva-2523DOI: 10.1016/j.chemosphere.2008.05.067ISI: 000259793500022PubMedID: 18653209OAI: oai:DiVA.org:polar-2523DiVA: diva2:880827
Available from: 2015-12-09 Created: 2015-12-09 Last updated: 2015-12-09

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed
In the same journal
Chemosphere

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 35 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf