Effect on Fumigation of Adding Sulfur Dioxide to a Carbon Tetrachloride-Carbon Disulfide Mixture

1951 ◽  
Vol 44 (6) ◽  
pp. 1022-1023
Author(s):  
Norman M. Dennis
1967 ◽  
Vol 88 (6) ◽  
pp. 644-647 ◽  
Author(s):  
Tomihito KAMBARA ◽  
Shigeyuki TANAKA ◽  
Kiyoshi HASEBE

1988 ◽  
Vol 92 (13) ◽  
pp. 3998-4006 ◽  
Author(s):  
A. Compostizo ◽  
A. Crespo Colin ◽  
M. R. Vigil ◽  
R. G. Rubio ◽  
M. Diaz Pena

2009 ◽  
Vol 59 ◽  
pp. 535-546 ◽  
Author(s):  
Henry A. Peters ◽  
Ross L. Levine ◽  
Charles G. Matthews ◽  
Steve Sauter ◽  
Larry Chapman

1971 ◽  
Vol 54 (4) ◽  
pp. 964-965
Author(s):  
Bernadette Malone McMahon

Abstract Seven lots of commercially fumigated grains were sampled from storage bins and analyzed for residues of the organic fumigants. Residues were isolated by the acid reflux procedure and determined by gas-liquid chromatography. Residue levels ranged from 0.84 to 2.16 ppm carbon disulfide, 2.92 to 20.4 ppm carbon tetrachloride, and <0.01 to 6.10 ppm ethylene dibromide. In general, residue levels found on grains fumigated at different times indicated the tendency for the volatile fumigants to dissipate with time. The lower volatility of ethylene dibromide results in disproportionately high residues compared to carbon disulfide and carbon tetrachloride, which were applied at higher rates.


2020 ◽  
pp. 000370282097322
Author(s):  
Zhaolun Cui ◽  
Xiaoxing Zhang ◽  
Dachang Chen ◽  
Yi Li ◽  
Yufei Wang ◽  
...  

Sulfur dioxide, carbon disulfide, and hydrogen sulfide are important decomposition products of insulating gas sulfur hexafluoride, and their types and contents are of great significance for the fault diagnosis of SF6 insulated equipment. In this paper, a method of combining ultraviolet absorption spectroscopy and least squares fitting is proposed for the quantitative calculation of sulfur dioxide, carbon disulfide, and hydrogen sulfide mixed gases. All three gases have absorption peaks in the ultraviolet band and they overlap with each other which makes it hard to determinate the concentrations of the three gases directly. During the experiment, we found that high concentrations of sulfur dioxide and carbon disulfide interfered with the hydrogen sulfide calculation and the magnitude of this interference was positively correlated with these two gas concentrations. Therefore, we found a modified equation for the correction of hydrogen sulfide. Combined with this equation, accurate quantitative detection of three gases can be achieved. The detection ranges are 0.5–10 parts per million for sulfur dioxide and hydrogen sulfide, and 10–300 parts per billion for carbon disulfide. This paper provides a simple and efficient detection method, which is convenient for integration into detection equipment and it provides a support method for the diagnosis of sulfur hexafluoride decomposition gases.


Sign in / Sign up

Export Citation Format

Share Document