Dimethylsulphide oxidation in the ocean

David Shooter; Peter Brimblecombe

doi:10.1016/0198-0149(89)90007-1

Dimethylsulphide oxidation in the ocean

David Shooter
, Peter Brimblecombe

Research output: Journal Publications and Reviews › RGC 22 - Publication in policy or professional journal

48 Citations (Scopus)

Abstract

Dimethylsulphide (DMS) is generally thought to be lost from the ocean by transfer to the atmosphere. However DMS is slowly autoxidized in saline solution (k′ = 2.2 × 10^-8 s^-1 at pH 8 and 20°C). The rate of autoxidation decreases with increasing pH and has an activation energy of 78 kJ mol^-1 at pH 8. Although slow, this autoxidation is fast enough to require a deep-sea source (precipitating detrital material?) for the low concentrations of DMS found at great depths. DMS does not bind significantly to Cu, Cd, Zn and Pb in seawater, although Cu was observed to increase the rate of autoxidation. © 1989.

Original language	English
Pages (from-to)	577-585
Journal	Deep Sea Research Part A, Oceanographic Research Papers
Volume	36
Issue number	4
DOIs	https://doi.org/10.1016/0198-0149(89)90007-1
Publication status	Published - Apr 1989
Externally published	Yes

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title = "Dimethylsulphide oxidation in the ocean",

abstract = "Dimethylsulphide (DMS) is generally thought to be lost from the ocean by transfer to the atmosphere. However DMS is slowly autoxidized in saline solution (k′ = 2.2 × 10-8 s-1 at pH 8 and 20°C). The rate of autoxidation decreases with increasing pH and has an activation energy of 78 kJ mol-1 at pH 8. Although slow, this autoxidation is fast enough to require a deep-sea source (precipitating detrital material?) for the low concentrations of DMS found at great depths. DMS does not bind significantly to Cu, Cd, Zn and Pb in seawater, although Cu was observed to increase the rate of autoxidation. {\textcopyright} 1989.",

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AU - Shooter, David

AU - Brimblecombe, Peter

PY - 1989/4

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N2 - Dimethylsulphide (DMS) is generally thought to be lost from the ocean by transfer to the atmosphere. However DMS is slowly autoxidized in saline solution (k′ = 2.2 × 10-8 s-1 at pH 8 and 20°C). The rate of autoxidation decreases with increasing pH and has an activation energy of 78 kJ mol-1 at pH 8. Although slow, this autoxidation is fast enough to require a deep-sea source (precipitating detrital material?) for the low concentrations of DMS found at great depths. DMS does not bind significantly to Cu, Cd, Zn and Pb in seawater, although Cu was observed to increase the rate of autoxidation. © 1989.

AB - Dimethylsulphide (DMS) is generally thought to be lost from the ocean by transfer to the atmosphere. However DMS is slowly autoxidized in saline solution (k′ = 2.2 × 10-8 s-1 at pH 8 and 20°C). The rate of autoxidation decreases with increasing pH and has an activation energy of 78 kJ mol-1 at pH 8. Although slow, this autoxidation is fast enough to require a deep-sea source (precipitating detrital material?) for the low concentrations of DMS found at great depths. DMS does not bind significantly to Cu, Cd, Zn and Pb in seawater, although Cu was observed to increase the rate of autoxidation. © 1989.

UR - https://www.scopus.com/pages/publications/0024527552

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0024527552&origin=recordpage

U2 - 10.1016/0198-0149(89)90007-1

DO - 10.1016/0198-0149(89)90007-1

M3 - RGC 22 - Publication in policy or professional journal

SN - 0198-0149

VL - 36

SP - 577

EP - 585

JO - Deep Sea Research Part A, Oceanographic Research Papers

JF - Deep Sea Research Part A, Oceanographic Research Papers

IS - 4

ER -

Dimethylsulphide oxidation in the ocean

Abstract

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