Sodium ascorbate

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2009-12-11 to 2010-03-11

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)

Specific details on test material used for the study:

- Batch Number: TL00910581

Key result

Test procedure:

burning time (test type not further specified)

Remarks:

burning time over a distance of 200 mm

Burning time:

> 0 - <= 2 min

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

In contact with the ignition source, the test item emitted sparks and the surface of the test item glowed. The surface of the test item swelled up and carbonized. Underneath, unchanged test item remained. The test item could not be ignited with a flame during the preliminary test (contact time of about 2 minutes). Therefore, no main test was performed.

Interpretation of results:

not classified based on GHS criteria

Remarks:

Migrated information

Conclusions:

Based on the results of this study, the test item is not considered as "highly flammable" according to the criteria of the guideline.

Executive summary:

The determination of the flammability of the test item was performed in accordance with the EEC Directive 92/69, EEC Publication No. L383, December 1992 and Council Regulation (EC) No. 440/2008, 30 May 2008, Part A, Methods for the determination of physico-chemical properties, A. 10 Flammability (solids). The test item could not be ignited with a flame during the preliminary test (contact time of about 2 minutes). Therefore, no main test was performed. Based on the results of this study, the test item is not considered as "highly flammable" according to the criteria of the guideline.

Description of key information

The substance does not have to be considered as flammable solid, flammable gas, flammable liquid, 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

In accordance to section 1.1.1 of Annex XI to Regulation (EC) No. 1907/2006 (REACH), existing data on physical-chemical properties from experiments not carried out according to test methods referred to in Article 13 (3) of REACH can be used, if they are adequate for the purpose of classification and labelling and/or risk assessment, sufficiently documentated as well as valid for the investigated endpoint and if the study was performed using an acceptable level of quality assurance. The determination of the flammability of the test item was performed in compliance with GLP criteria, following EEC Directive 92/69, EEC Publication No. L383, December 1992 and Council Regulation (EC) No. 440/2008, 30 May 2008, Part A, Methods for the determination of physico-chemical properties, A. 10 Flammability (solids). The test item could not be ignited with a flame during the preliminary test (contact time of about 2 minutes). Therefore, no main test was conducted. Based on the results of this study, the test item is not considered as 'highly flammable' according to the criteria of the guideline. In accordance with ECHA guidance on IR/CSA chapter R.7a section R.7.1.10.3, further testing on flammable solids is not required, 'if available data from an A.10 test method indicate that a classification as a flammable solid does not apply (result: not highly flammable)'. Thus, no further testing was performed. In conclusion, the test item is not considered to be classified as flammable solid.

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.

 

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.

 

Pyrophoric solids

In accordance with section 2.10.4 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 to be applied when experience in manufacture or handling shows that the solid does not ignite spontaneously on coming into contact with air at normal temperatures (i.e. the solid is known to be stable at room temperature for prolonged periods of time (days)). 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.

 

Self-heating substances and mixtures

In accordance with section 1.2 in Annex XI of Regultation (EC) 1907/2006 (REACH), the study on self-heating substances does not need to performed because decomposition of the substance starts at 233 °C and spontaneous ignition was not observed up to this temperature. Furthermore, the sample did not exceed the oven temperature by 60 °C during the test (see IUCLID section 4.3).

Substances which, in contact with water, emit flammable gases

In accordance with column 2 of REACH Annex VII and with Regulation (EC) No 1272/2008 Annex I section 2.12.4 and ECHA guidance on the application of CLP Criteria section 2.12.4.2 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.

 

In conclusion, the substance does not have to be considered as flammable solid, flammable gas, flammable liquid, 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 and section 2.12 of Regulation (EC) No 1272/2008, as amended for tenth time in Regulation (EC) No 2017/776, and UN GHS Rev 6 (2015) the test item has not to be classified as flammable solid, flammable liquid, 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.