Development of a portable device to collect sulfuric acid aerosol. Interim report Jun 75--May 76

Technical Report · Mon Jan 31 23:00:00 EST 1977

OSTI ID:7312310

Barrett, W J; Miller, H C; Smith, Jr, J E; Gwin, C H

The purpose of this investigation was to determine the effects of possible atmospheric interferents on the quantitative collection of sulfuric acid aerosol on a filter. Sulfuric acid aerosol was generated in the laboratory with a flame atomizer and collected on Teflon filters. The filters were exposed to potential gas and vapor interferents and to particulate interferents during, before, or after the collection of the sulfuric acid. Measurements of sulfuric acid were made by an acid-base indicator method or by extraction with benzaldehyde and titration. Also, sulfur evolved on heating the filters was measured by the flame photometric method. Ammonia, particulate calcium carbonate, and ambient particulate material (collected near a busy street) caused severe losses of sulfuric acid; particulate ferric oxide and silicate clay caused an intermediate loss; pyridine and phenol vapors, particulate fly ash, and soot caused little or no loss; and sulfur dioxide and nitrogen dioxide had no effect (in the absence of other materials).

• Research Organization: Southern Research Inst., Birmingham, AL (USA)
• OSTI ID: 7312310
• Report Number(s): PB-264257; SORI-EAS-76-397
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
AUTOMOBILES
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
COAL
COLLOIDS
COMBUSTION PRODUCTS
DISPERSIONS
ENERGY SOURCES
EXHAUST GASES
EXTRACTION
FILTERS
FOSSIL FUELS
FUELS
GASEOUS WASTES
HYDROGEN COMPOUNDS
INDUSTRIAL WASTES
INORGANIC ACIDS
MEASURING METHODS
PARTICLE SIZE
PARTICLES
POWER PLANTS
QUANTITY RATIO
SEPARATION PROCESSES
SIZE
SOLS
SOLVENT EXTRACTION
SULFURIC ACID
THERMAL POWER PLANTS
VEHICLES
WASTES