Nickel Tetracarbonyl Detection Tubes 0.1/a (0.1 - 1 ppm)
For short-term measurements more than 160 Draeger Tubes are available to measure the so called spot concentrations of specific gases.
A wide range of different gases and vapours can be detected and measured, such as:
- Determining and measuring concentration peaks
- Measuring personal exposure in the inhalation area
- Detecting leaks in pipelines, gas installations etc.
- Air analysis in sewers, shafts and confined spaces
|Standard Measuring Range:
||0.1 to 1 ppm
Discoloration compared to color standard.
|Number of strokes n:
|Time for Measurement:
||approx. 5 min
||± 50 %
||yellow ──> pink
||0 to 30 °C
||< 30 mg H2O / L
||a) Ni(CO)4 + I2 ──> NiI2 + 4 CO
b) NiI2 + Dimethylglyoxime ──> pink colored complex
||Iron pentacarbonyl is also indicated by a brownish discoloration, however, with less sensitivity. Measurement of nickel tetra carbonyl is not possible in the presence of hydrogen sulfide of sulfur dioxide, since the reading is suppressed. Such a disturbance can be recognised by decoloration of the indicating layer even before the reagent
ampoule is opened.
||After performing the required 20 pump strokes the reagent ampoule must be broken and the liquid carefully drawn onto the indicating layer using the pump.