2-Pentenenitrile Detection Tubes (0.5 to 15 ppm)
Gastec Detection Tube No. 193 measures 2-Pentenenitrile with a Range of 0.05 to 15 ppm.
- Measuring Range:
- 0.5 to 6.0 ppm
- 6.0 to 15 ppm
- Number of Pump Strokes: 4, 2
- Correction Factor: 1, 2.5
- Sampling Time: 2 minutes per pump stroke
- Detecting Limit: 0.1 ppm (4 pump strokes)
- Changes from Yellow to Red
- Corrections for temperature & humidity: Temperature correction is necessary
- Reaction Principle:
- CH3CH2CH:CHCN + Cr6+ + H2SO4 → HCN
- 2HCN + HgCl2 → 2HCl
- HCl + Base → Chloride
- Relative Standard Deviation: 10% (for 0.5 to 2 ppm), 5% (for 2 to 6 ppm)
- 3 Year Shelf Life
- Store the tubes at cool and dark place.
- Comes in a Box of 5 pre tube and 5 detector tubes
Possible coexisting substances and their interferences:
| Substance |
Concentration |
Interference |
Changes color by itself to |
| Hydrogen chloride, Hydrogen cyanide |
|
No |
No |
| Acetone cyanohydrin |
|
+ |
Red |
| Alcohols, Esters, Ketones |
≧ 20 ppm |
- |
No |
| Nitriles (≧ C3) |
|
+ |
Red |
| Aromatic hydrocarbons |
≧ 20 ppm |
- |
No |
| Dehumidifying agent removes humidity and acid gases. |
2-Pentenenitrile Detection Tubes (0.5 to 15 ppm)
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