| Main Title |
Spectrophotometric Determination of Butenes and Higher Molecular Weight Olefins in Combustion Gases and in the Atmosphere. |
| Author |
Altshulle, A. P. ;
Slev, S. F. ;
|
| CORP Author |
Federal Water Pollution Control Administration, Portland, Oreg. Northwest Region. |
| Year Published |
1961 |
| Stock Number |
PB-216 364 |
| Additional Subjects |
( Gas analysis ;
Alkene hydrocarbons) ;
( Air pollution ;
Alkene hydrocarbons) ;
Exhaust gases ;
Colorimetric analysis ;
Spectroscopic analysis ;
Air pollution detection
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-216 364 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
46p |
| Abstract |
Four-carbon and higher molecular weight olefins can be quantitatively determined in the gas phase by reaction with p-dimethylaminobenzaldehyde in concentrated sulfuric acid, heating at 100 degrees, and measurement of the absorbance at 500 micrometers. The absorptivities are such that 0.1 ppm or less of gaseous olefins can be determined. Interference by formaldehyde is appreciable. Excess amounts of aromatic hydrocarbons and phenols interfere somewhat in the procedure. Simple methods for removing possible interferences in gas mixtures are discussed. The method has been applied to the analysis of automobile exhaust and diluted irradiated exhaust mixtures. (Author) |
