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Administrative data

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
25/09/2012
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Non-GLP study according to international guideline (OECD guideline 103).
Cross-reference
Reason / purpose for cross-reference:
reference to same study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2012

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Deviations:
no
Principles of method if other than guideline:
Not relevant
GLP compliance:
no
Type of method:
distillation method

Test material

Constituent 1
Reference substance name:
Lemongrass flexuosus
IUPAC Name:
Lemongrass flexuosus
Constituent 2
Reference substance name:
Cymbopogon flexuosus, ext.
EC Number:
295-161-9
EC Name:
Cymbopogon flexuosus, ext.
IUPAC Name:
295-161-9
Constituent 3
Reference substance name:
Cymbopogon flexuosus, ext.
IUPAC Name:
Cymbopogon flexuosus, ext.
Constituent 4
Reference substance name:
91844-92-7
IUPAC Name:
91844-92-7
Test material form:
other: liquid
Details on test material:
- Name of test material (as cited in study report): Lemongrass flexuosus
- Physical state: liquid

Results and discussion

Boiling point
Boiling pt.:
94 °C
Atm. press.:
1 013 hPa
Remarks on result:
other: Standard deviation: +/- 10ºC

Any other information on results incl. tables

Time (Mins)

Bottom Temperature ('C)

Head Temperature ('C)

Amount of Distillate (g)

Amount of Distillate (%)

Comments

0

20

23.0

0.00

0.00

 

4

40

23.0

0.00

0.00

 

9

68

23.0

0.00

0.00

 

14

100

23.0

0.00

0.00

 

20

134

23.0

0.00

0.00

 

21

139

23.0

0.00

0.00

 

22

146

23.0

0.00

0.00

Start boiling 

23

151

23.0

0.00

0.00

 

24

156

23.0

0.00

0.00

 

25

160

23.0

0.00

0.00

 

26

165

23.0

0.00

0.00

 

27

169

23.0

0.00

0.00

 

28

173

23.0

0.00

0.00

 

29

176

23.0

0.00

0.00

 

30

180

23.0

0.00

0.00

 

31

183

23.0

0.00

0.00

 

32

185

23.0

0.00

0.00

 

33

187

23.0

0.00

0.00

 

34

187

23.0

0.00

0.00

 

35

195

23.0

0.00

0.00

 

36

200

93.0

0.00

0.00

 

37

205

93.0

0.00

0.00

 

38

221

94.0

0.00

0.00

 

39

225

94.0

0.27

0.15

First distillate 

40

227

110.0

0.63

0.35

 

41

230

195.0

9.01

5.05

 

42

231

200.0

31.51

17.64

 

43

231

200.0

35.26

19.74

 

44

232

205.0

37.28

20.88

 

45

234

206.0

45.33

25.38

 

46

234

206.0

48.68

27.25

 

47

235

207.0

52.85

29.59

 

48

235

211.0

59.54

33.33

 

49

236

211.0

63.77

35.71

 

50

237

215.0

74.46

41.69

 

51

237

216.0

84.51

47.32

 

52

238

217.0

92.32

51.69

 

53

239

218.0

98.20

54.99

 

54

240

219.0

105.51

59.07

End distillation 

Observations:

·        The sample started to boil at a bottom temperature of 146°c

·        First distillate was obtained at (head temperature) 94°c

·        Head temperature reached a plateau around 220°c

·        Bottom temperature continued to rise due to composition change.

Applicant's summary and conclusion

Conclusions:
The boiling point of Cymbopogon flexuosus is 94ºC at 1013 hPa.
Executive summary:

The boiling point of Cymbopogon flexuosus was determined according to methodology comparable to OECD guideline 103 using the destillation method. The boiling point (first distillate) was found to be 94 +/- 10ºC at 1013 hPa.

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