butanedioic acid, 2-octenyl

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Remarks:

EC Method A.2, OECD Method 103

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

not applicable

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Deviations:

no

Principles of method if other than guideline:

not applicable

GLP compliance:

yes

Other quality assurance:

other: Council Regulation (EC) No 440/2008 (as amended) of 30 May 2008 and REACH Regulation (EU) No 1907/2006 of the European Parliament and of the Council

Type of method:

method according to Siwoloboff

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch No. of test material: 8515025
- Expiration date of the lot/batch: 23 March 2018

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature (15 - 25 degree Celsius)

FORM AS APPLIED IN THE TEST (if different from that of starting material) -
- Physical state: Viscous liquid (The test item becomes a waxy solid on standing at room temperature for prolonged periods)

Key result

Remarks on result:

other: The boiling temperature of the test substance was not determinable, as the test item decomposed at temperatures above approximately 150°C before boiling.

The results of the definitive boiling point determinations on the test substance were as follows:

Barometric pressure: 1023 mbar

As the boiling tubes were heated at 1°C/minute, the samples were observed to darken from approximately 150ºC, indicating decomposition. When heating was continued beyond this temperature in the preliminary test, the decomposed sample was observed to boil at approximately 200°C.

Conclusions:

Under the conditions of the study, the boiling temperature of the test substance was not determinable, as the test item decomposed at temperatures above approximately 150°C before boiling.

Executive summary:

The boiling temperature of the test substance was examined by the Siwoloboff method ( EC Method A.2, OECD Method 103) under GLP.

A boiling tube (3.2 mm diameter) was filled to a height of 5 to 10 mm with the sample and a boiling capillary was immersed, open end first. The boiling tube containing the sample and the boiling capillary was inserted into the sample holder, and observations recorded as the temperature was raised.

A preliminary determination was made initially at a heating rate of 10°C/minute to estimate the boiling point of the substance, followed by definitive determinations at 1°C/minute.

As the boiling tubes were heated at 1°C/minute, the samples were observed to darken from approximately 150ºC, indicating decomposition. When heating was continued beyond this temperature in the preliminary test, the decomposed sample was observed to boil at approximately 200°C.

Under the conditions of the study, the boiling temperature of the test substance was not determinable, as the test item decomposed at temperatures above approximately 150°C before boiling.

Description of key information

The boiling temperature of the test substance was examined by the Siwoloboff method (EC Method A.2, OECD Method 103) under GLP.

A boiling tube (3.2 mm diameter) was filled to a height of 5 to 10 mm with the sample and a boiling capillary was immersed, open end first.The boiling tube containing the sample and the boiling capillary was inserted into the sample holder, and observations recorded as the temperature was raised.

Apreliminary determination was made initially at a heating rate of 10°C/minute to estimate the boiling point of the substance, followed by definitive determinations at 1°C/minute.

As the boiling tubes were heated at 1°C/minute, the samples were observed to darken from approximately 150ºC, indicating decomposition. When heating was continued beyond this temperature in the preliminary test, the decomposed sample was observed to boil at approximately 200°C.

Under the conditions of the study, the boiling temperature of the test substance was not determinable, as the test item decomposed at temperatures above approximately 150°C before boiling.