酸丁酯气体检测管142L Butyl acetate    的详细介绍   

 

 

醋酸丁酯气体检测管142L Butyl acetate
Butyl acetate                            No.142L

 

CH3CO2(CH2)3CH3(CH3CO2C4H9)

 

 

  Performance 

MeasuringRange

10 to 300 ppm

Number of PumpStrokes

2

CorrectionFactor

1

SamplingTime

4 minutes per pumpstroke

DetectingLimit

2 ppm (n=2)

ColorChange

Yellow → Dark brown →Pale blue after few minutes

ReactionPrinciple

CH3CO2(CH2)3CH3  + Cr⁶⁺  + H2SO4  → Cr³⁺

Coefficient ofVariation15% (for 10 to 100ppm)， 10% (for 100 to 300 ppm)ShelfLife2 YearsCorrectionsfor
temperature & humidityTemperature  correction is  necessaryStore the tubes at cool and darkplace.
Possible coexisting substances and theirinterferences(NOTE)

Substance

Concentration

Interference

Change color by itself

Alcohols

-

Plus error

Dark brown (few minuteslater) 
  Pale blue

Ketones

-

Plus error

Esters

-

Plus error

Aromatic HCs

-

Pluserror