Determination of sulfur trioxide in engine exhaust.

Abstract:

:Sulfur trioxide in the exhaust gas of an internal combustion engine is removed and concentrated by absorption in a solution of 80% isopropyl alcohol, which quantitatively absorbs it and inhibits the oxidation of any sulfur dioxide which may be absorbed. The absorbed sulfur trioxide (sulfuric acid) is determined by an absorption titration by using barium chloride as the titrant and thorin as the indicator. The sulfur dioxide content of the exhaust is measured continuously by means of a DuPont Model 411 ultraviolet photoanalyzer.

authors

Arnold DR

doi

10.1289/ehp.7510117

subject

Has Abstract

pub_date

1975-04-01 00:00:00

pages

117-9

eissn

0091-6765

issn

1552-9924

journal_volume

10

pub_type

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