Registration Dossier

Diss Factsheets

Physical & Chemical properties

Boiling point

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
15 July 2011 - 09 February 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Study was conducted in accordance with International guidelines and in accordance with GLP. All guideline validity criteria were met.
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Version / remarks:
27 July 1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
Commission Regulation (EC) No 440/2008 laying down test methods pursuant to Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
method according to Siwoloboff
Remarks:
Differential scanning calorimetry (DSC) was employed to investigate potential test item decomposition.
Specific details on test material used for the study:
RADIOLABELLING INFORMATION (if applicable)
- Radiochemical purity: N/A
- Specific activity: N/A
- Locations of the label: N/A
- Expiration date of radiochemical substance: N/A

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature in the dark and under nitrogen.
- Stability under test conditions: Asumed stable until decomposition at 180 °C.
- Solubility and stability of the test substance in the solvent/vehicle: N/A, applied as supplied.
- Reactivity of the test substance with the solvent/vehicle of the cell culture medium: N/A.

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing: N/A
- Preliminary purification step (if any): N/A
- Final dilution of a dissolved solid, stock liquid or gel: N/A
- Final preparation of a solid: N/A

FORM AS APPLIED IN THE TEST (if different from that of starting material) : Applied as supplied.

TYPE OF BIOCIDE/PESTICIDE FORMULATION (if applicable) : N/A

OTHER SPECIFICS: No
Key result
Atm. press.:
1 019 mBar
Decomposition:
yes
Decomp. temp.:
180 °C
Remarks on result:
not determinable
Remarks:
the test substance decomposed at temperatures above approximately 180°C without boiling.
Conclusions:
The boiling temperature of Tetraesters of pentaerythritol with 2- methylpropanoic acid and 3,5,5-trimethyl-hexanoic acid was not determinable, as the test substance decomposed at temperatures above approximately 180 °C without boiling.
Executive summary:

OECD 103 (2012) - The determination was carried out using the Siwoloboff method. A boiling tube (3.2 mm diameter) was filled to a height of approximately 5 to 10 mm with the sample and a boiling capillary was immersed, open end first. A trial determination was made initially to estimate the boiling point of the substance. The boiling tube containing the sample and the boiling capillary was inserted into the sample holder and the temperature was raised at 10 °C/minute to 360 °C. 

In the trial determination at 1019 mbar,  Tetraesters of pentaerythritol with 2-methylpropanoic acid and 3,5,5-trimethyl-hexanoic acid showed no sign of boiling as the temperature was raised to 360 °C, but evolution of gas was indicative of possible decomposition. 

Differential scanning calorimetry (DSC) was employed to investigate further. A DSC trace was obtained using a Mettler Toledo FP900 Thermosystem with FP85 DTA/DSC measuring cell, in an air atmosphere at a heating rate of 1 °C/minute. The DSC trace confirmed decomposition from approximately 180 °C as evidenced by a series of exotherms and endotherms from this temperature. The decomposed sample had the appearance of a dark brown residue at the end of testing. 

The boiling temperature of Tetraesters of pentaerythritol with 2-methylpropanoic acid and 3,5,5-trimethyl-hexanoic acid was not determinable, as the test substance decomposed at temperatures above approximately 180°C without boiling.

 

Description of key information

Boiling point = Not determinable, as the test substance decomposed at temperatures above approximately 180 °C without boiling; OECD 103; Sydney, P. (2012)

Key value for chemical safety assessment

Additional information

OECD 103 (2012) - The determination was carried out using the Siwoloboff method. A boiling tube (3.2 mm diameter) was filled to a height of approximately 5 to 10 mm with the sample and a boiling capillary was immersed, open end first. A trial determination was made initially to estimate the boiling point of the substance. The boiling tube containing the sample and the boiling capillary was inserted into the sample holder and the temperature was raised at 10 °C/minute to 360 °C. 

In the trial determination at 1019 mbar, Tetraesters of pentaerythritol with 2-methylpropanoic acid and 3,5,5-trimethyl-hexanoic acid showed no sign of boiling as the temperature was raised to 360 °C, but evolution of gas was indicative of possible decomposition.

Differential scanning calorimetry (DSC) was employed to investigate further. A DSC trace was obtained using a Mettler Toledo FP900 Thermosystem with FP85 DTA/DSC measuring cell, in an air atmosphere at a heating rate of 1 °C/minute. The DSC trace confirmed decomposition from approximately 180 °C as evidenced by a series of exotherms and endotherms from this temperature. The decomposed sample had the appearance of a dark brown residue at the end of testing. 

The boiling temperature of Tetraesters of pentaerythritol with 2-methylpropanoic acid and 3,5,5-trimethyl-hexanoic acid and pentaerythritol was not determinable, as the test substance decomposed at temperatures above approximately 180 °C without boiling.

 

Categories Display