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Phosgene (COCl2)
Item Item Details
(Price is for domestic US market only)
Phosgene (COCl2)
Item Name:
Phosgene (COCl2)
Item #:
GAS-16

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Phosgene COCl2 NO.16

16


Performance

Measuring Range

0.05 to 0.1 ppm

0.1 to 5 ppm

5 to 20 ppm

Number of Pump Strokes

10

5

1

Correction Factor

1/2

1

4

Sampling Time

1 minute per pump stroke

Detecting Limit

0.01 ppm (n=10)

Color Change

White Yellow

Reaction Principle

COCl2+ (CH3)2NC6H4CHO (CH3)2NC6H4CHCl2 + CO2
(CH3)2NC6H4CHCl2 + (C6H5)2NH Reaction Product

Coefficient of Variation 10% (for 0.1 to 1 ppm), 5% (for 1 to 5 ppm)
Shelf Life 1.5 Years
Corrections for
temperature & humidity
Temperature correction is necessary
Store the tubes in the refrigerator to keep at 10oC (50oF) or below.


Possible coexisting substances and their interferences (NOTE)

Substance

Concentration

Interference

Change color by itself

Hydrogen chloride

1/10 time

Plus error

Produces yellow discoloration

Chlorine

1/2 time

Plus error

Produces yellow discoloration

Nitrogen dioxide

1/5 time

Plus error

Produces yellow discoloration


Calibration gas generation Permeation tube method


TLV-TWA TLV-STEL Explosive range
0.1ppm - -
 
Range 0.05-20


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