Sodium 1,2-diisobutoxycarbonylethanesulphonate

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2011

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Guideline compliant well documented study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling point/boiling range)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Deviations:

no

GLP compliance:

no

Type of method:

differential scanning calorimetry

Key result

Boiling pt.:

>= 229 °C

Atm. press.:

1 021 mBar

Decomposition:

yes

Decomp. temp.:

>= 229 °C

Remarks on result:

other: From 229°C the test item shows a boiling and/or thermal decomposition with evaporation of the decomposition products.

The test item Butandioic acid, sulfo-, 1,4-bis(2-methylpropyl)ester, sodium salt shows a boiling and/or thermal decomposition at ca. 229 °C (at 1021 mbar) (a decomposition is most likely due to a strong residue in the crucible at ca. 600 °C (see TGA measurements)) according to the definition in the OECD guideline 103 (mean value from repeat determination; 1st heating run).

·        231 °C (from first measurement)

·        231 °C (from second measurement)

·        225 °C (from third measurement)

From 229 °C the test item shows a boiling and/or thermal decomposition with evaporation of the decomposition components.

The DSC measurements were confirmed by means of TGA measurements (up to 229 °C the sample shows a weight loss of ca. 3-6 weight%) under the same measuring conditions

Conclusions:

boiling/decomposition at >= 229°C

Executive summary:

In the non-GLP klimisch 1 key study from Kintrup (2012) the boiling point of Butandioic acid, sulfo-, 1,4-bis(2-methylpropyl)ester, sodium salt was determined with the DSC method according to OECD 103 and EU method A.2. Up to 229°C the test item did not show any boiling. At 229° and higher decomposition and probably also boiling were observed.

This information is considered to be relevant and reliable for the further risk assessment.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

229 °C

Additional information

In the non-GLP klimisch 1 key study from Kintrup (2012) the boiling point of Butandioic acid, sulfo-, 1,4-bis(2-methylpropyl)ester, sodium salt was determined with the DSC method according to OECD 103 and EU method A.2. Up to 229°C the test item did not show any boiling. At 229° and higher decomposition and probably also boiling were observed.

For the risk assessment, a boiling temperature of 229°C will be used.

This information is considered to be relevant and reliable for the further risk assessment.