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Propyl acetate CH3CO2CH2CH2CH3
Item Item Details
(Price is for domestic US market only)
Propyl acetate CH3CO2CH2CH2CH3
Item Name:
Propyl acetate CH3CO2CH2CH2CH3
Item #:
GAS-145

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Propyl acetate CH3CO2CH2CH2CH3
(CH3CO2C3H7)
NO.145


Performance

Measuring Range

20 to 500 ppm

Number of Pump Strokes

2

Correction Factor

1

Sampling Time

4 minutes per pump stroke

Detecting Limit

4 ppm (n=2)

Color Change

Yellow Blackish brown Pale blue after few minutes

Reaction Principle

Propyl acetate reduces cromic acid to produce blackish brown.

Coefficient of Variation

15% (for 20 to 100 ppm), 10% (for 100 to 500 ppm)

Shelf Life 2 Years
Corrections for
temperature & humidity
Temperature correction is necessary
Store the tubes at cool and dark place.


Possible coexisting substances and their interferences (NOTE)

Substance

Concentration

Interference

Change color by itself

Alcohols

-

Plus error

Produce blackish brown
then turns to pale blue

Ketones

-

Plus error

Produce blackish brown
then turns to pale blue

Esters

-

Plus error

Produce blackish brown
then turns to pale blue


Calibration gas generation Diffusion tube method


TLV-TWA TLV-STEL Explosive range
200ppm 250ppm 1.7 to 8%


 
Range 200-500


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