Copper mercaptides as sulfur dioxide indicators

Patent · Mon Jan 01 00:00:00 EST 1979

OSTI ID:863339

Eller, Phillip G ^[1]; Kubas, Gregory J ^[1]

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1. Los Alamos, NM

Organophosphine copper(I) mercaptide complexes are useful as convenient and semiquantitative visual sulfur dioxide gas indicators. The air-stable complexes form 1:1 adducts in the presence of low concentrations of sulfur dioxide gas, with an associated color change from nearly colorless to yellow-orange. The mercaptides are made by mixing stoichiometric amounts of the appropriate copper(I) mercaptide and phosphine in an inert organic solvent.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4152118
• OSTI ID: 863339
• Country of Publication: United States
• Language: English

Related Subjects

copper
mercaptides
sulfur
dioxide
indicators
organophosphine
mercaptide
complexes
useful
convenient
semiquantitative
visual
gas
air-stable
form
adducts
presence
concentrations
associated
color
change
nearly
colorless
yellow-orange
mixing
stoichiometric
amounts
appropriate
phosphine
inert
organic
solvent
color change
dioxide gas
stoichiometric amounts
organic solvent
sulfur dioxide
stoichiometric amount
complexes form
oxide gas
stable complexes
/436/422/999/