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Diss Factsheets

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
October 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study performed according to relevant tests guidelines under GLP conditions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
static method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent
Type:
Constituent
Details on test material:
Identification 1,2-Dichloropropane 75
Molecular formula C3H6Cl2
Molecular weight 112.99
CAS Number 78-87-5
Description Clear grey liquid (determined at NOTOX)
Batch RBA100720A (taken from label)
Purity CAS Number
>=65 - <= 80% 1,2-Dichloropropane 78-87-5
>= 8 - <= 20% 2,3-Dichloropropene 78-88-6
>=10 - <= 13% 1,1-Dichloropropene 563-58-6
>= 9 - <= 18% 1,3-Dichloropropene 542-75-6
>= 1 - <= 3% 3-Chloropropene 107-05-1
<= 0.3% Benzene 71-43-2
Test substance storage In refrigerator (2-8°C) protected from light
Stability under storage conditions Stable
Expiry date 23 July 2011 (allocated by NOTOX, 1 year after receipt of the test substance)

Study specific test substance information:
Test substance handling Use amber-coloured glassware or wrap container in tin-foil.

Results and discussion

Vapour pressure
Temp.:
20 °C
Vapour pressure:
78.1 mm Hg

Any other information on results incl. tables

The results of the static method for the determination of the vapour pressure of the test substance are given in Table 6.

 

The coefficient of correlation (r) of the plot of the log PT of the test substance as function of the reciprocal temperatures was > 0.99. Interpolation of the curve to 20°C resulted in a vapour pressure of 10.4´103Pa = 78.1 mm Hg for the test substance.

 

Table 6      Results of thevapour pressure of the test substance

Test

Temperature
(°C)

PT
(kPa)

log PT

 

 

 

 

1

50

35.4

1.55

 

55

42.8

1.63

 

60

51.3

1.71

 

65

61.3

1.79

 

70

72.7

1.86

 

75

85.6

1.93

 

80

99.8

2.00

 

85

115.3

2.06

 

90

133.8

2.13

 

 

 

 

2

50

35.5

1.55

 

55

42.7

1.63

 

60

51.1

1.71

 

65

61.2

1.79

 

70

72.4

1.86

 

75

85.2

1.93

 

80

99.2

2.00

 

85

114.6

2.06

 

90

133.0

2.12

 

 

 

 

 

Applicant's summary and conclusion

Conclusions:
The static method was chosen for the determination of the vapour pressure of the reaction mass containing mainly 1,2-Dichloropropane.

The vapour pressure of the test substance at 20°C (293K) was 10.4 x 10 3 Pa = 78.1 mm Hg.