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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1997-07-22 - 1997-07-25
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
GLP compliance:
yes
Type of method:
static method
Temp.:
20 °C
Vapour pressure:
0.001 Pa
Remarks on result:
other: 6,3 (+/- 1,0) x 10-4 Pa at 20 °C

6,3 (+/- 1,0) x 10-4 Pa at 20 °C

Table of the vapour pressures calculated from the raw data:

Nr.

p/Pa

ln (p/Pa)

Nr.

p/Pa

ln (p/Pa)

Nr.

p/Pa

ln (p/Pa)

5

0.25

-1.39*

60

0.160

-1.83*

105

0.0848

-2.47

10

0.23

-1.47*

65

0.128

-2.06*

107

0.0816

-2.51

15

0.19

-1.66*

70

0.114

-2.17

108

0.0848

-2.47

20

0.189

-1.67*

75

0.122

-2.10*

110

0.0839

-2.48

25

0.173

-1.75*

80

0.108

-2.23

112

0.0823

-2.50

30

0.165

-1.80*

82

0.111

-2.20

114

0.0837

-2.48

35

0.160

-1.83

83

0.111

-2.20

115

0.0848

-2.47

37

0.161

-1.83

85

0.110

-2.21

117

0.0830

-2.47

40

0.159

-1.84

87

0.106

-2.24

118

0.0808

-2.49

41

0.159

-1.84

89

0.108

-2.23

120

0.0804

-2.52

42

0.159

-1.84

90

0.110

-2.21

121

0.0841

-2.48

43

0.159

-1.84

92

0.111

-2.20

122

0.0803

-2.52

44

0.158

-1.85

93

0.106

-2.24

123

0.0830

-2.49

45

0.160

-1.83

95

0.113

-2.18

124

0.0829

-2.49

46

0.156

-1.86

97

0.110

-2.21

 

 

 

47

0.160

-1.83

98

0.105

-2.25

 

 

 

48

0.158

-1.85

100

0.111

-2.20

 

 

 

49

0.156

-1.86

101

0.106

-2.24

 

 

 

50

0.157

-1.85

 

 

 

 

 

 

51

0.159

-1.84

 

 

 

 

 

 

52

0.157

-1.85

 

 

 

 

 

 

53

0.155

-1.86

 

 

 

 

 

 

54

0.158

-1.85

 

 

 

 

 

 

* = not used for calculation

Description of key information

0.00063 Pa at 20 °C

Key value for chemical safety assessment

Additional information

The vapour pressure of the substance fatty acids, C16-18 (even numbered) and C18-unsatd., branched and linear, di- and triesters with trimethylolpropane (former CAS 85005 -23 -8) was determined according to OECD guideline 104 / EU method A.4 (static method).