| 2-Pentenenitrile | CH3CH2CH:CHCN | NO.193 |
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| Performance |
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Measuring Range |
0.5 to 6.0 ppm |
6.0 to 15 ppm |
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Number of Pump Strokes |
4 |
2 |
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Correction Factor |
1 |
2.5 |
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Sampling Time |
3 minutes per pump stroke |
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Detecting Limit |
0.1 ppm(n=4) |
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Color Change |
Yellow |
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Reaction Principle |
2-Pentenenitrile is decomposed by acid to liberate hydrogen cyanide which react with mercuric chloride to generate hydrogen chloride. The generated hydrogen chloride discolors indicator to red. | |
| Coefficient of Variation | 10% (for 0.5 to 2 ppm), 5% (for 2 to 6 ppm) | |
| Shelf Life | 3 Years | |
| Corrections for temperature & humidity |
Temperature correction is necessary |
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| Store the tubes at cool and dark place. |
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| Possible coexisting substances and their interferences |
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Substance |
Concentration |
Interference |
Change color by itself |
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Hydrogen chloride |
- |
No effect |
No discoloration |
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Hydrogen cyanide |
- |
No effect |
No discoloration |
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Nitriles ( |
- |
Plus error |
Discolor red stain |
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Acetone cyanohidrin |
- |
Plus error |
Discolors red stain |
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Alcohols, Esters, Ketones |
20 ppm or higher |
Minus error |
No discoloration |
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Aromatic hydrocarbons |
20 ppm or higher |
Minus error |
No discoloration |
Note: Humidity scrubber removes humidity and acid gases.
| Calibration gas generation | Diffusion tube method | |
| TLV-TWA | TLV-STEL | Explosive range |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Red
C3)