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Diss Factsheets

Administrative data

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report date:
2008

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Version / remarks:
27 July 1997
Deviations:
not specified
GLP compliance:
yes
Type of method:
differential scanning calorimetry

Test material

Constituent 1
Chemical structure
Reference substance name:
Didodecyl hydrogen citrate
EC Number:
247-146-3
EC Name:
Didodecyl hydrogen citrate
Cas Number:
25637-88-1
Molecular formula:
C30H56O7
IUPAC Name:
didodecyl hydrogen citrate
Constituent 2
Chemical structure
Reference substance name:
Dodecyl dihydrogen 2-hydroxypropane-1,2,3-tricarboxylate
EC Number:
278-950-2
EC Name:
Dodecyl dihydrogen 2-hydroxypropane-1,2,3-tricarboxylate
Cas Number:
78568-45-3
Molecular formula:
C18H32O7
IUPAC Name:
2-[2-(dodecyloxy)-2-oxoethyl]-2-hydroxysuccinic acid
Constituent 3
Chemical structure
Reference substance name:
Tridodecyl 2-hydroxypropane-1,2,3-tricarboxylate
EC Number:
265-671-6
EC Name:
Tridodecyl 2-hydroxypropane-1,2,3-tricarboxylate
Cas Number:
65277-53-4
Molecular formula:
C42H80O7
IUPAC Name:
tridodecyl citrate
impurity 1
Chemical structure
Reference substance name:
Citric acid
EC Number:
201-069-1
EC Name:
Citric acid
Cas Number:
77-92-9
Molecular formula:
C6H8O7
IUPAC Name:
citric acid
impurity 2
Chemical structure
Reference substance name:
Dodecan-1-ol
EC Number:
203-982-0
EC Name:
Dodecan-1-ol
Cas Number:
112-53-8
Molecular formula:
C12H26O
IUPAC Name:
dodecan-1-ol
impurity 3
Reference substance name:
unidentified impurities
IUPAC Name:
unidentified impurities
Test material form:
solid: granular

Results and discussion

Boiling point
Key result
Boiling pt.:
>= 275 °C
Decomposition:
yes
Decomp. temp.:
>= 275 °C

Any other information on results incl. tables

In the DSC curve a small glass transition peak was observed at approximately 0 °C in the first experiment. An endothermic peak was observed between 25 and 75 °C. Melting of the test substance probably caused this effect.The extrapolated onset temperature of this peak was determined to be 35 °C. An endothermic effect started at 275 °C. This effect was due to reaction and/or decomposition of the test substance. After the experiment , a yellow coloured, molten residue remained in the sample container (original colour: white). The change in temperature and colour indicated that the test substance had reacted or fdecomposed.

The second experiment showed essentially the same results a sduring the first experiment.

Applicant's summary and conclusion

Conclusions:
Reaction and/or decomposition of the test substance were observed at ca. 275 °C. Boiling of the substance was not observed below the temperature at which reaction and/or decomposition started. Therefore the substance has no boiling temperature.
Executive summary:

The boiling point of the substance was determined by DSC according to OECD Guideline 103.

The first experiment was performed with 5.48 mg test substance. The sample was heated from -25 °C to 327 °C with a rate of 20 °C/minute.

An amount of 7.78. mg test substance was used during the second experiment.. The same temperature program as with the firdt experiment was applied.

All experiments were performed under a flow of nitrogen and at atmosperic pressure.

In the DSC curve a small glass transition peak was observed at approximately 0 °C in the first experiment. An endothermic peak was observed between 25 and 75 °C. Melting of the test substance probably caused this effect.The extrapolated onset temperature of this peak was determined to be 35 °C. An endothermic effect started at 275 °C. This effect was due to reaction and/or decomposition of the test substance. After the experiment , a yellow coloured, molten residue remained in the sample container (original colour: white). The change in temperature and colour indicated that the test substance had reacted or fdecomposed.

The second experiment showed essentially the same results a sduring the first experiment.

Reaction and/or decomposition of the test substance were observed at ca. 275 °C. Boiling of the substance was not observed below the temperature  at which reaction and/or decomposition started. Therefore the substance has no boiling temperature.