Alcohols, C10-16, ethoxylated, sulfosuccinates, disodium salts

Flammability

Link to relevant study record(s)

Reference

Reference 1

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)

Test procedure:

100 mm sample cube at 140°C

Max. temp. reached:

270.5

Induction time (h):

24

Result:

positive outcome (effect observed)

Remarks:

substance had decomposed by the end of the test.

Test procedure:

25 mm sample cube at 140°C

Max. temp. reached:

253.9

Induction time (h):

24

Result:

positive outcome (effect observed)

Remarks:

substance had decomposed by the end of the test.

Test results

10 cm sample cube at 140 °C

During the test the substance in a 100 mm sample cube at 140 °C exhibited a 60 °C rise in temperature over the oven temperature within 24 hours. The maximum decomposition temperature was 270.5 °C.

2.5 cm sample cube at 140 °C

During the test the substance in a 25 mm sample cube at 140 °C exhibited a 60 °C rise in temperature over the oven temperature within 24 hours. The maximum decomposition temperature was 253.9 °C.

  

Cube size	Oven temp.	Weight of sample	Result
10 cm cube	140 °C	621.9 g	The test substance decomposed. Maximum decomposition temperature: 270.5 °C
2.5 cm cube	140 °C	11.3 g	The test substance decomposed. Maximum decomposition temperature: 253.9 °C
10 cm cube	120 °C	/	not performed
10 cm cube	100 °C	/	not performed

 

Conclusion

As a results of the above tests and criteria, the test substance [trade name] comes under the classification of “Substances liable to spontaneous combustion, Self-heating substances, Packing Group II of Division 4.2”.

Reference 2

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

04-Dec-2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

GLP compliance:

yes (incl. QA statement)

Remarks:

Ministero della Salute, D.G. Della Prevenzione Sanitaria Officio IV, Milan.

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

Results

In the preliminary screening test, the test flame was applied for over two minutes, after about 15 seconds an orange flame was observed. The test item propagated burning of a 200 length of the powder train in 362 seconds: the flame extinguished after 577s. The propagation of combustion occurred only partially.

The preliminary screening test was performed in duplicate and the similar observations were obtained in both test.

The sample labelled as [test item] should not be considered as readily flammable and no further burning rate test is required.

Conclusion

According to test method A.10, the sample labelled as [trade name] should not be considered as flammable.

Description of key information

Self-heating: Cat. 1 (UN Test N.4)

Non pyrophoric (UN Test N.1)

Not flammable (EU Method A.10)

Non flammable on contact with water

Additional information

The substance was determined to be self-heating substance of category 1 in a test according to UN Test N.4.

The substance was determined to non pyrophoric in a test according to UN Test N.1.

The substance was determined to be non flammable on ignition by EU Method A.10.

Based on the chemical structure and experience in handling and use, flammability in contact with water is not expected.

Justification for classification or non-classification

The available data on flammability of the test substance do meet the criteria for classification according to Regulation (EC) 1272/2008: In the UN Test N.4 a temperature rise of > 60 °C was observed in a 100 mm sample cube and in a 25 mm sample tube at 140 °C and therefore the substance has to be classified as self-heating substance category 1.

The substance did not spontaneous ignite within 5 minutes when poured from about 1 m height onto a non-combustible surface in the UN Test N.2 and is therefore not a pyrophoric solid.

The substance propagated burning of a 200 mm length of the powder train in 362 seconds in a preliminary screening test according EU Method A.10. Therefore the substance is not be classified as a flammable solid.  

The available data on flammability of the test substance do not meet the criteria for classification according to Regulation (EC) 1272/2008, and are therefore conclusive but not sufficient for classification.

Based on chemical structure and experience in handling and use, flammability on contact with water is not expected.