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Vinylidene chloride (CH2:CCl2)
Item Details
(Price is for domestic US market only)
Vinylidene chloride (CH2:CCl2)
Item Name:
Vinylidene chloride (CH2:CCl2)
Item #:
GAS-130L

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Vinylidene chloride CH2:CCl2 NO.130L

130L


Performance

Measuring Range

0.4 to 1 ppm

1 to 14 ppm

14 to 40.6 ppm

Number of Pump Strokes

2

1

1/2

Correction Factor

0.4

1

2.9

Sampling Time

1 minute per pump stroke

Detecting Limit

0.1 ppm (n=2)

Color Change

Yellow Reddish brown

Reaction Principle

Vinylidene chloride is oxidized to form hydrogen
chloride to produce reddish brown stain.

Coefficient of Variation 10% (for 1 to 4 ppm), 5% (for 4 to 14 ppm)
Shelf Life 2 Years
Corrections for
temperature & humidity
Unnecessary
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

Ethylene

300ppm

Minus error

No discoloration

Vinyl chloride

1/7 time

Plus error

Produce reddish brown

Tetrachloroethylene

4 times

Plus error

Produce reddish brown

Trichloroethylene

1time

Plus error

Produce reddish brown

Toluene

500 ppm

Minus error

No discoloration

Benzene

400 ppm

Minus error

No discoloration


Calibration gas generation Permeation tube method


TLV-TWA TLV-STEL Explosive range
5ppm - 5.6 to 11.4%
Range 0.4-40.6


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