Measuring Range |
0.02 to 0.05 ppm |
0.05 to 2 ppm |
2 to 5 ppm |
|
Number of Pump Strokes |
|
Correction Factor |
|
Sampling Time |
2 minutes per pump stroke |
Detecting Limit |
0.01 ppm (n=5) |
Colour Change |
Yellow → Red |
Reaction Principle |
Diborane reacts with mercuric chloride to produce hydrogen chloride. HCl react with indicator to discolour to red.
B2H6 + 6HgCl2 → 2B2(HgCl)3 + 6HCl
HCl + Base → chloride |
Coefficient of Variation |
10% (for 0.05 to 0.4 ppm), 5% (for 0.4 to 2 ppm) |
Shelf Life |
2 Years |
Corrections for temperature & humidity |
Temperature correction is necessary |
Store the tubes at cool and dark place. |