4-(4-isopropoxyphenylsulfonyl)phenol

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1990-08-09 to 1990-10-18

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Test procedure:

burning time (test type not further specified)

Burning time:

0 s

Powdery, granular or paste-like substances are to be considered as highly flammable when the time of burning in any tests carried out according to the test procedure as described is less than 45 seconds.

Results:

Test 1:

On application of the air-rich bunsen burner flame the pile melted, forming globules of black liquid and did not propagate burning.

Test 2:

On application of the air-rich bunsen burner flame the pile melted, forming globules of black liquid and did not propagate burning.

Test 3:

On application of the air-rich bunsen burner flame the pile melted, forming globules of black liquid and did not propagate burning.

Test 4:

On application of the air-rich bunsen burner flame the pile melted, forming globules of black liquid and did not propagate burning.

Test 5:

On application of the air-rich bunsen burner flame the pile melted, forming globules of black liquid and did not propagate burning.

Test 6:

On application of the air-rich bunsen burner flame the pile melted, forming globules of black liquid and did not propagate burning.

Interpretation of results:

GHS criteria not met

Conclusions:

D-8 was tested for the flammability of solids according to the EU Test guideline A.10. D-8 was not highly flammable as it did not propagate combustion.

Executive summary:

D-8 was loosely filled into a mould 250 mm long with a triangular cross-section of inner height 10 mm and width 20 mm. A hot flame from a gas burner (minimum diameter of 5 mm) was used to ignite the pile at one end. Powdery, granular or paste-like substances are to be considered as highly flammable when the time of burning in any tests carried out according to the test procedure as described is less than 45 seconds. D-8 was not considered highly flammable.

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:

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 4

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 5

Endpoint:

self-heating substances / mixtures

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 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 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 liquid

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.

Flammable solids

D-8 was tested for the flammability of solids according to the EU Test guideline A.10. Powdery, granular or paste-like substances are to be considered as highly flammable when the time of burning in any tests carried out according to the test procedure as described is less than 45 sec. D-8 was not shown to be highly flammable as it did not propagate combustion. D-8 was not classified and labelled highly flammability, according to Regulation (EC) No 1272/2008 (CLP).

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.

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.

Self-heating substances and mixtures

In accordance with ECHA guidance on IR/CSA chapter R.7a section R7.1.10.7 Version 5 December 2016 and the study does not to be conducted if preliminary results exclude self-heating of the substance up to 400 °C. In accordance with ECHA guidance on the Application of the CLP Criteria section 2.11.4.2 the study for self-ignition temperature EU A.16 (reference 4.12-1, 'Auto flammability') can be for screening purposes. The substance has a melting point below 160 °C, therefore, the self-heating of the test item can be uxcluded as the test item is completely molten at 160 °C. Thus, the test UN N.4 for self-heating substance is not required.

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.

 

In conclusion the substance has not to be considered as flammable gas, flammable liquid, flammable solid, flammable in contact with water, flammable aerosol, pyrophoric solid, pyrophoric liquid or self-heating substance.

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 the twelfth time in Regulation (EC) No. 2019/521, 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.