Nitro Compounds/Nitroethan Detection Tubes (0.54 to 30 ppm)

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Item #: 52
MFG: GasTec

UOM: Box of 10

$93.16 Was: $101.18
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Nitro Compounds/Nitroethan Detection Tubes (0.54 to 30 ppm)

Measures Nitro Compounds (Nitroparaffin) (Pyrotec)

Performance:

Measuring Range: 0.5 to 30 ppm
Number of Pump Strokes: 1 (100 ml)
Correction Factor: 1
Sampling Time: 2 min
Detecting Limit: 0.1 ppm (1 Pump Stroke)
Color Change: White to Yellowish Orange
Corrections for temperature & humidity Unnecessary
Shelf Life: 3 Years

Reaction Principle:

  • Pyrotec: Nitro compounds → NOx
  • Pyrotube: NOx + CrO3 + H2SO4 → NO2
  • NO2 + o-Tolidine → Yellowish orange product

Possible coexisting substances and their interferences:

Substance Concentration Interference Changes color by itself to
Chlorine dioxide + Yellowish orange
Halogens + Yellowish orange
Halogenated hydrocarbons + Yellowish orange
Hydrogen chloride + Yellowish orange
Sulfur dioxide ≧ 25 ppm - (Bleaching) No
Hydrogen sulfide ≧ 25 ppm - (Bleaching) No

Substances measurable with this Pyrotube:

Substances n Correction Factor Measuring Range
Acetonitrile 1 6.0 3 to 180 ppm
Nitroethane 1 8.0 4 to 240 ppm
Nitrogen dioxide 1 1.0 0.5 to 30 ppm
Nitromethane 1 10.0 5 to 300 ppm
1-Nitropropane 1 8.4 4.2 to 252 ppm
2-Nitropropane 1 7.4 3.7 to 222 ppm