The Determination of Low Concentrations of Hydrogen Sulfide in Gas by the Methylene Blue Method1 - 1949
A.
E. Sands2
M. A. Grafius3
H. W. Wainwright3
M W. Wilson4
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| Page | |||
| Introduction | 2 | ||
| Summary and conclusions | 2 | ||
| Discussion | 3 | ||
| Investigations at Morgantown | 6 | ||
| Study of variables affecting method | 6 | ||
| Effect of amount of amine used | 6 | ||
| Comparison of the hydrochloride and sulfate of the diamine | 7 | ||
| Blank values | 7 | ||
| Temperature | 7 | ||
| Interfering substances | 9 | ||
| Applicability to various commercial gases | 10 | ||
| Range of test | 11 | ||
| Age of reagent | 11 | ||
| Absorbents for H2S | 13 | ||
| Minimum H2S concentrations in gas determined by this method | 15 | ||
| Wave length and filter selection | 16 | ||
| Procedure | 17 | ||
| Reagents | 17 | ||
| Curve calibration | 18 | ||
| Determination of unknown solution | 18 | ||
1 Work completed on manuscript March, 1949. The Bureau of Mines will welcome reprinting of this paper, provided the following footnote is used: "Reprinted from Bureau of Mines Report of Investigations 4547"
2 Assistant chief, Synthesis Gas Production Branch, Office of Synthetic Liquid Fuels, Bureau of Mines, Morgantown, W. Va.
3 Chemist, Synthesis Gas Production Laboratories, Office of Synthetic Liquid Fuels, Bureau of Mines, Morgantown, W. Va.