Photochemical method for generating superoxide radicals (O/sub 2/-) in aqueous solutions. [US Patent]

Patent · Mon Apr 21 23:00:00 EST 1980

OSTI ID:5134150

Holroyd, R A; Bielski, B H.J.

This patent describes a photochemical method and apparatus for generating superoxide radicals (O/sub 2/-) in an aqueous solution by means of a vacuum-ultraviolet lamp of simple design. The lamp is a microwave powered rare gas device that emits far-ultraviolet light. The lamp includes an inner loop of high purity quartz tubing through which flows an oxygen-saturated sodium formate solution. The inner loop is designed so that the solution is subjected to an intense flux of far-ultraviolet light. This causes the solution to photodecompose and form the product radical (O/sub 2/-).

• Assignee: Dept. of Energy
• Patent Number(s): US 4199419
• OSTI ID: 5134150
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
550200 -- Biochemistry
59 BASIC BIOLOGICAL SCIENCES
ALKALI METAL COMPOUNDS
CARBOXYLIC ACID SALTS
CHEMICAL PREPARATION
CHEMISTRY
DESIGN
ELECTROMAGNETIC RADIATION
ELEMENTS
FAR ULTRAVIOLET RADIATION
FORMATES
LABORATORY EQUIPMENT
NONMETALS
OXYGEN
PHOTOCHEMISTRY
RADIATIONS
RADICALS
SODIUM COMPOUNDS
SUPEROXIDE RADICALS
SYNTHESIS
ULTRAVIOLET RADIATION