Reaction mass of 4-(2-methylbutan-2-yl)phenol and 2,4-bis(2-methylbutan-2-yl)phenol

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

19 September 2015 to 28 November 2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks on result:

substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period

The flame of the gas burner did ignite the test item pile. The test item melted, burned with a blue yellow flame and turned into a colourless yellow residue. Grey smoke was observed. After removal of the ignition source, the flame extinguished after 2 seconds and no propagation of combustion was observed.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

No propagation of combustion of the test item along 200 mm length of the pile within 4 minutes was observed. According to the guidelines, performance of the burning rate test is not required. Based on the results obtained, the test item is considered ‘not highly flammable’.

Executive summary:

The purpose of the study was to determine the physico-chemical properties for Phenol, 1,1-dimethylpropyl derivs.

 

The study was performed to the following guidelines:

European Community (EC), EC no. 440/2008, Part A: Methods for the Determination of Physico-Chemical Properties, Guideline A.10: “Flammability (Solids)”, Official Journal of the European Unionno. L142, May 31, 2008.

United Nations (UN), UN no. ST/SG/AC.10/11/Rev.5: Recommendations on the Transport of Dangerous Goods, Part III: Classification Procedures, Test Methods and Criteria Relating to Class 2, Class 3, Class 4, Division 5.1, Class 8 and Class 9, Test N.1: “Test Method for Readily Combustible Solids”, 2009.

 

The preliminary screening test was performed for the determination of the flammability of Phenol, 1,1-dimethylpropyl derivs.

 

No propagation of combustion of the test item along 200 mm length of the pile within 4 minutes was observed. According to the guidelines, performance of the burning rate test is not required. Based on the results obtained, the test item is considered ‘not highly flammable’.

Description of key information

Key value determined in a GLP accredited laboratory study performed in accordance with EU Method A.10 & A.13 and UN Test N.1 and N.2

Key value for chemical safety assessment

Flammability:

not classified

Additional information

The preliminary screening test was performed for the determination of the flammability of Phenol, 1,1-dimethylpropyl derivs.

No propagation of combustion of the test item along 200 mm length of the pile within 4 minutes was observed. According to the guidelines, performance of the burning rate test is not required. Based on the results obtained, the test item is considered ‘not highly flammable’.

 

The full test was performed to monitor the pyrophoric properties of Phenol, 1,1dimethylpropyl derivs.

Spontaneous ignition of the test item did not occur during dropping or within five minutes of settling, in any of the tests.

In conclusion, the test item has no pyrophoric properties.

Justification for classification or non-classification

The substance is not classified under CLP as it does not fill the requirements for classification.