Sodium 2-sulphonatoethyl laurate

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Type of information:

other: expert statement

Adequacy of study:

key study

Study period:

16 July 2013 - 23 August 2013

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: A statement was written by an expert and complied with the principles of GLP. The statement was in agreement with UN-MTC Appendix 6.

Qualifier:

according to guideline

Guideline:

other: UN ST/SG/AC.10/11/Rev.5: Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Appendix 6 "Screening procedures" (2009)

Deviations:

no

GLP compliance:

yes

Test procedure:

other: Expert statement

Identity of evolved gas:

not applicable as no gas evolved

Remarks on result:

other: The substance does not contain groups associated with the hazard

EXPERT STATEMENT

 

A test substance is considered highly flammable when it ignites spontaneously in contact with water, or evolves a flammable gas at a minimum rate of ≥ 1 litre/kg of the substance per hour.

 

None of the components of the test substance does contain groups that might lead to ignition in contact with water and/or to the evolution of a flammable gas. Moreover the test substance was dissolved in water during the determination of the water solubility (see endpoint 4.8). It demonstrated that the test substance does not ignite spontaneously in contact with water. The test substance contains approximately 8% unknown components. It is assumed that these components do not affect the properties of the test substance.

 

In conclusion, Sodium Lauroyl Isethionate is considered ‘not highly flammable’ in contact with water.

Interpretation of results:

GHS criteria not met

Conclusions:

In a GLP expert statement it was concluded that the substance is not highly flammable in contact with water as the substance lacks structural alerts, is known to be soluble in water and experience in handling showed that the substance does not react with water. In accordance with Section 1 of REACH Annex XI, testing was not performed.

Reference 2

Endpoint:

self-heating substances / mixtures

Type of information:

experimental study

Adequacy of study:

key study

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.4 (Test method for self-heating substances)

GLP compliance:

yes

Test procedure:

100 mm sample cube at 140°C

Max. temp. reached:

168

Induction time (h):

24

Result:

negative outcome (no effect observed)

An exothermic effect of the test substance was observed (see the fgure below). During this effect the test substance reached a temperature of 168°C. According to the guideline, the test is positive when the sample temperature exceeds the oven temperature by 60°C during the 24 hour testing time. The result is therefore considered negative and no further testing was required. After the experiment, the test substance had turned into a yellow/brown coagulated residue. It indicated that the test substance had been molten, decomposed and/or reacted during the experiment.

Interpretation of results:

GHS criteria not met

Conclusions:

The substance was determined to be “not a self-heating substance” in a GLP-compliant study performed in accordance with UN-MTC Part III Section 33 (Test N.4). Classification as a self-heating substance is not necessary according to the CLP Regulation.

Reference 3

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

16 July 2013 - 23 August 2013

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: The study was performed in accordance with the UN-MTC Section 33 (Test N.1) and EC.A10 guideline and complied with the principles of GLP.

Qualifier:

according to guideline

Guideline:

other: UN ST/SG/AC.10/11/Rev.5: Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Part III Section 33-33.2.1.4 “ Test N.1: “Test method for readily combustible solids” (2009)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Version / remarks:

(2008)

Deviations:

no

GLP compliance:

yes

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 substance pile. The test substance melted, burned with an orange flame, and turned into a black residue. White smoke was observed. After removal of the ignition source, the flame extinguished after 11 seconds and no propagation of combustion was observed.

 

Interpretation of results:

other: 'not highly flammable' by ignition

Conclusions:

The substance was determined to be 'not highly flammable' by ignition in a GLP-compliant study performed in accordance with UN-MTC Section 33 (Test N.1) and EC.A10.

Reference 4

Endpoint:

pyrophoric solids

Type of information:

other: expert statement

Adequacy of study:

key study

Study period:

16 July 2013 - 23 August 2013

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: A statement was written by an expert and complied with the principles of GLP. The statement was in agreement with UN-MTC Appendix 6.

Qualifier:

according to guideline

Guideline:

other: UN ST/SG/AC.10/11/Rev.5: Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Appendix 6 "Screening procedures" (2009)

Deviations:

no

GLP compliance:

yes

Test procedure:

other: Expert statement

Remarks on result:

other: The substance does not contain groups associated with this hazard

EXPERT STATEMENT

 

A test substance is considered pyrophoric when it ignites within five minutes of coming in contact with air.

 

None of the components of the test substance does contain groups that might lead to ignition in contact with air. Moreover the test substance was handled under normal laboratory conditions during the determination of the physico-chemical properties. It demonstrated that the test substance does not ignite in contact with air at room temperature. The test substance contains approximately 8% unknown components. It is assumed that these components do not affect the properties of the test substance.

 

In conclusion, Sodium Lauroyl Isethionate has no pyrophoric properties.

Interpretation of results:

GHS criteria not met

Conclusions:

In a GLP expert statement it was concluded that the substance has no pyrophoric properties as the substance lacks structural alerts and experience in handling showed that the substance does not ignite spontaneously when coming into contact with air at normal temperatures. In accordance with Section 1 of REACH Annex XI, testing was not performed.

Description of key information

The substance was determined to be 'not highly flammable' by ignition in a GLP-compliant study performed in accordance with UN-MTC Section 33 (Test N.1) and EC.A10.

In a GLP expert statement it was concluded that the substance is not highly flammable in contact with water as the substance lacks structural alerts, is known to be soluble in water and experience in handling showed that the substance does not react with water. In accordance with Section 1 of REACH Annex XI,  testing was not performed.

In a GLP expert statement it was concluded that the substance has no pyrophoric properties as the substance lacks structural alerts and experience in handling showed that the substance does not ignite spontaneously when coming into contact with air at normal temperatures. In accordance with Section 1 of REACH Annex XI,  testing was not performed.

The substance was determined to be “not a self-heating substance” in a GLP-compliant study performed in accordance with UN-MTC Part III Section 33 (Test N.4). Classification as a self-heating substance is not necessary according to the CLP Regulation.

Key value for chemical safety assessment

Flammability:

non flammable