Ammonium 2-ethylhexyl sulphate

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

Study period:

from 2020-06-25 to 2020-08-12

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)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Test procedure:

100 mm sample cube at 140°C

Max. temp. reached:

140

Induction time (h):

36

Result:

negative outcome (no effect observed)

Bowes-Cameron-Cage Test
140 °C, 100 mm cube sample
The temperature profile of the test using a 100 mm cube sample (weighed mass: 862.29 g) at an oven temperature of 140 °C was determined. The temperature in the centre of the sample didn't exceed the oven temperature within 36 h. Due to the negative result in the 100 mm cube sample at an oven temperature of 140 °C further tests were not necessary.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

The test item indicated no self-heating at atmospheric pressure in the 100 mm cube sample at a temperature of 140 °C. According to the results of the tests on the self-ignition in the Bowes-Cameron-Cage Test (UN Test N.4) the test item does not have to be classified as self-healing substance in class 4, division 4.2 according to the UN Transport Regulation and not to be classified as self-heating substance according to GHS or Regulation (EC) No 1272/2008, respectively.

Executive summary:

A study according to UN N.4 was performed to determined the self-heating potential of the test item. A test item sample of 862.29 g was weighted in a 100 mm mesh cube. The oven temperature was set at 140 °C and the sample was heated for 36 h. The temperature in the centre of the sample didn’t exceed the oven temperature within the 36 h. Due to the negative result in the 100 mm cube sample at an oven temperature of 140 °C further tests were not necessary. In conclusion, the test item indicated no self-heating at atmospheric pressure in the 100 mm cube sample at a temperature of 140 °C.

Reference 2

Endpoint:

flammable gases

Data waiving:

study technically not feasible

Justification for data waiving:

the study does not need to be conducted because the substance is a solid

Reference 3

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2019-04-18 to 2019-04-18

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

GLP compliance:

yes

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks on result:

other: The test item only burned over a distance of 60 mm within 2 minutes. Thus, the performance of the main test was not necessary.

Preliminary Test
The test item could be ignited at room temperature using a flame as ignition source, but the test item only burned over a distance of 60 mm within 2 minutes.

Main Test
Since the test item only burned over a distance of 60 mm within 2 minutes in the preliminary test, the performance of the main test was not necessary.

Interpretation of results:

GHS criteria not met

Conclusions:

The test item was not flammable in a study according to UN test N.1.

Executive summary:

The flammable properties of the test item was determined in a study according to UN Test N.1. The test item Ammonium 2-ethylhexyl sulfate could be ignited applying a flame as ignition source, but the test item only burned over a distance of 60 mm within 2 minutes.
The test item is classified as follows:
UN Transport Regulation: The product has not to be classified as readily combustible solid in class 4.1 according to the UN Transport Regulation.
GHS (CLP Regulation EC 1272/2008: Annex 1: 2.7): The product has not to be classified as flammable solid according to GHS / CLP Regulation EC 1272/2008 Annex 1: 2.7.

Reference 4

Endpoint:

pyrophoric liquids

Data waiving:

study technically not feasible

Justification for data waiving:

the study does not need to be conducted because the substance is a solid

Reference 5

Endpoint:

pyrophoric solids

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied

Reference 6

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the experience in production or handling shows that the substance does not react with water, e.g. the substance is manufactured with water or washed with water

Description of key information

The substance has not to be classified as flammable gas, flammable liquid, flammable solid, flammable in contact with water, flammable aerosol, pyrophoric solid, pyrophoric liquid or self-heating substance.

Key value for chemical safety assessment

Flammability:

not classified

Additional information

Flammable solids

The flammable properties of the test item was determined in a study according to UN Test N.1. The test item Ammonium 2-ethylhexyl sulfate could be ignited applying a flame as ignition source, but the test item only burned over a distance of 60 mm within 2 minutes.
The test item is classified as follows:
UN Transport Regulation: The product has not to be classified as readily combustible solid in class 4.1 according to the UN Transport Regulation.
GHS (CLP Regulation EC 1272/2008: Annex 1: 2.7): The product has not to be classified as flammable solid according to GHS / CLP Regulation EC 1272/2008 Annex 1: 2.7.

 

Flammable gases

The test item is a solid at ambient conditions. This hazard class is only applicable for gases. Thus, the substance was not considered for classification as flammable gas.

 

Flammable liquids

The test item is a solid at ambient conditions. This hazard class is only applicable for liquids. Thus, the substance was not considered for classification as flammable liquid.

 

Pyrophoric solids

In accordance with section 2.9.4 Annex I of Regulation (EC) No 1272/2008 and ECHA guidance on the application of CLP Criteria section 2.10.4.2 the classification procedure for pyrophoric solids need not be applied when experience in manufacturing or handling shows that the substance or mixture does not ignite spontaneously when coming into contact with air at normal temperatures. Based on the experience in handling and use the substance is not known to ignite spontaneously when coming into contact with air at normal temperatures. Thus, no study was conducted and the substance was not considered for classification as pyrophoric solid.

 

Pyrophoric liquids

The test item is a solid at ambient conditions. This hazard class is only applicable for liquids. Thus, the substance was not considered for classification as pyrophoric liquid.

 

Self-heating substances

A study according to UN N.4 was performed to determined the self-heating potential of the test item. A test item sample of 862.29 g was weighted in a 100 mm mesh cube. The oven temperature was set at 140 °C and the sample was heated for 36 h. The temperature in the centre of the sample didn’t exceed the oven temperature within the 36 h. Due to the negative result in the 100 mm cube sample at an oven temperature of 140 °C further tests were not necessary. In conclusion, the test item indicated no self-heating at atmospheric pressure in the 100 mm cube sample at a temperature of 140 °C.

 

Substances which, in contact with water, emit flammable gases

In accordance with column 2 of REACH Annex VI and with Regulation (EC) No 1272/2008 Annex I section 2.12.4.1 the classification procedure for this hazard class need not to be applied. Based on the experience in handling and use the substance does not react with water and in addition the test substance is not pyrophoric. Thus, no study was conducted and the substance was not considered for classification.

 

Flammable Aerosols

Section 2.4.2 of Guidance on the application on the CLP Criteria state as follows:

“Aerosols, this means aerosol dispensers, are any non-refillable receptacles made of metal, glass or plastics and containing a gas compressed, liquefied or dissolved under pressure, with or without a liquid, paste or powder, and fitted with a release device allowing the contents to be ejected as solid or liquid particles in suspension in a gas, as a foam, paste or powder or in a liquid state or in a gaseous state." Thus, as the substance does not meet the definition for aerosol, the test for aerosols was waived. Consequently the substance has not to be considered for classification for this hazard class.

Justification for classification or non-classification

Classification, Labelling, and Packaging Regulation (EC) No 1272/2008

In accordance with Annex I Section 2.2, Section 2.3, Section 2.6, Section 2.7, Section 2.9, Section 2.10 Section 2.11, Section 2.12 of Regulation (EC) No 1272/2008, as amended for fifteenth time in Regulation (EU) 2020/1182, and UN GHS Rev 7 (2017) the test item has not to be classified as, flammable liquid, readily combustible solid in class 4 Division 4.1, self-heating substance in Class 4 Division 4.2, substances which in contact with water emit flammable gases in Class 4 Division 4.3, pyrophoric liquid, pyrophoric solid in class 4 Division 4.2, flammable gases in class 2 or as aerosol in class 2.