Acrylonitrile Detection Tubes (0.1 to 18 ppm)

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Item #: 191L
MFG: GasTec

UOM: Box of 10

$86.20 Was: $92.15
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Acrylonitrile Detection Tubes (0.1 to 18 ppm)

This detector tube measures Acrylonitrile within 0.1 to 18.0 ppm.

  • Measuring Range:
    • 0.1 to 0.2 ppm - 4 pump strokes - Correction Factor: 1/2
    • 0.2 to 6.0 ppm - 2 pump strokes - Correction Factor: 1
    • 6.0 to 18.0 ppm - 1 pump stroke - Correction Factor: 3
  • Sampling Time: 2 minutes per pump stroke
  • Detecting limit: 0.05 ppm (4 pump strokes)
  • Changes from Yellow to Pink
  • Corrections for temperature & humidity: Unnecessary
  • Relative Standard Deviation: 10 %(for 0.2 to 2.0 ppm), 5 %(for 2.0 to 6.0 ppm)
  • 3 Year Shelf Life
  • Reaction Principle:
    • CH2:CHCN + Cr6+ + H2SO4 → HCN
    • 2HCN + HgCl2 → 2HCl
    • HCl + Base → Chloride
  • Store the tubes at a cool and dark place

Possible coexisting substances and their interferences

Substance Concentration Interference Changes color by itself to
Acetone cyanohydrin + Pink
Nitriles (≧ C3) + Pink
Alcohols, Esters, Ketones No No
Aromatic hydrocarbons No No
Hydrogen chloride No No
Hydrogen cyanide No No

Other substances measurable with this detector tube:

Substances Correction Factor No. of Pump Strokes Measuring Range
Butyronitrile 30 1 6 to 180 ppm
2-Methyl-3-butenenitrile 2.0 2 0.4 to 12.0 ppm
2-Pentenenitrile 1.2 2 0.24 to 7.2 ppm
3-Pentenenitrile 2.0 2 0.4 to 12.0 ppm