Soybean oil, maleated, ester with triethanolamine

Hydrolysis

Link to relevant study record(s)

Reference

Endpoint:

hydrolysis

Data waiving:

other justification

Justification for data waiving:

other:

Justification for type of information:

The test item is a complex mixture which the test method is not ideally suited. This is because hydrolytically unstable components could have their own rate of hydrolysis and an additional problem if some components are stable leading to conflicting results. Also, hydrolysis products of components can be the same as some of the already present components and differentiating these would not be possible.

Guideline:

other: The test item is a complex mixture which the test method is not ideally suited.

Version / remarks:

The test item is a complex mixture which the test method is not ideally suited. This is because hydrolytically unstable components could have their own rate of hydrolysis and an additional problem if some components are stable leading to conflicting results. Also, hydrolysis products of components can be the same as some of the already present components and differentiating these would not be possible.

Deviations:

no

Remarks:

Expert statement

Radiolabelling:

no

Analytical monitoring:

no

Transformation products:

not measured

Testing was not carried out using Method C7 Abiotic Degradation, Hydrolysis as a Function of pH of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 111 of the OECD Guidelines for Testing of Chemicals, 13 April 2004 for the following reasons:

 

The test item is a complex mixture which the test method is not ideally suited. This is because hydrolytically unstable components could have their own rate of hydrolysis and an additional problem if some components are stable leading to conflicting results. Also, hydrolysis products of components can be the same as some of the already present components and differentiating these would not be possible.

 

The main functional group within the components of the test item that could hydrolyze are esters. Although esters usually readily hydrolyze, especially in alkaline conditions, the test item components may have a significantly reduced hydrolytic rate due to them being essentially insoluble in water. Therefore, it was considered that the loss of test item by hydrolysis at environmental relevant pH and temperatures would be negligible.

Validity criteria fulfilled:

yes

Remarks:

It was considered that the loss of test item by hydrolysis at environmental relevant pH and temperatures would be negligible.

Conclusions:

The main functional group within the components of the test item that could hydrolyze are esters. Although esters usually readily hydrolyze, especially in alkaline conditions, the test item components may have a significantly reduced hydrolytic rate due to them being essentially insoluble in water. Therefore, it was considered that the loss of test item by hydrolysis at environmental relevant pH and temperatures would be negligible.

Executive summary:

Testing was not carried out using Method C7 Abiotic Degradation, Hydrolysis as a Function of pH of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 111 of the OECD Guidelines for Testing of Chemicals, 13 April 2004 for the following reasons:

 

The test item is a complex mixture which the test method is not ideally suited. This is because hydrolytically unstable components could have their own rate of hydrolysis and an additional problem if some components are stable leading to conflicting results. Also, hydrolysis products of components can be the same as some of the already present components and differentiating these would not be possible.

 

The main functional group within the components of the test item that could hydrolyze are esters. Although esters usually readily hydrolyze, especially in alkaline conditions, the test item components may have a significantly reduced hydrolytic rate due to them being essentially insoluble in water. Therefore, it was considered that the loss of test item by hydrolysis at environmental relevant pH and temperatures would be negligible.

Description of key information

The main functional group within the components of the test item that could hydrolyze are esters. Although esters usually readily hydrolyze, especially in alkaline conditions, the test item components may have a significantly reduced hydrolytic rate due to them being essentially insoluble in water. Therefore, it was considered that the loss of test item by hydrolysis at environmental relevant pH and temperatures would be negligible.

Additional information

Testing was not carried out using Method C7 Abiotic Degradation, Hydrolysis as a Function of pH of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 111 of the OECD Guidelines for Testing of Chemicals, 13 April 2004 for the following reasons:

The test item is a complex mixture which the test method is not ideally suited. This is because hydrolytically unstable components could have their own rate of hydrolysis and an additional problem if some components are stable leading to conflicting results. Also, hydrolysis products of components can be the same as some of the already present components and differentiating these would not be possible.

 

The main functional group within the components of the test item that could hydrolyze are esters. Although esters usually readily hydrolyze, especially in alkaline conditions, the test item components may have a significantly reduced hydrolytic rate due to them being essentially insoluble in water. Therefore, it was considered that the loss of test item by hydrolysis at environmental relevant pH and temperatures would be negligible.