dimethyl[[2,2'''-[1,3-propanediylbis(oxy-kO)]bis[3'',5,5''-tris(1,1-dimethylethyl)-5'-methyl[1,1':3',1''-terphenyl]-2'-olato-kO]](2-)]-zirconium

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:

September 2017

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:

no

Other quality assurance:

other: ISO 9001

Test procedure:

burning rate test: preliminary screening test

Burning time:

21 s

Key result

Test procedure:

burning rate test over 100 mm length

Burning time:

8 s

In the screening test the gas flame was applied to one end of the substance strip.

The substance ignited easily.

The time for burning 200 mm of the powder train was 21 seconds. This is within the test period of 4 minutes and therefore the burning rate test was performed.

The burning rate test was performed 1 time. The burning time for 100 mm was 8 seconds.

This result (burning time over 100 mm < 45 seconds) means that the substance is considered as highly flammable according to EC guideline A.10.

Interpretation of results:

Category 1 (flammable solids) based on GHS criteria

Conclusions:

The flammability of Zirconium, dimethyl[[2,2'''-[1,3-propanediylbis(oxy-κO)]bis[3'',5,5''-tris(1,1-dimethylethyl)-5'-methyl[1,1':3',1''-terphenyl]-2'-olato-κO]](2-)]-, (OC-6-33)-,was determined according to EC Regulation No 440/2008, Guideline A.10 [1] in accordance with European Chemicals Agency (ECHA), Guidance on information requirements and chemical safety assessment, Chapter R.7a, Endpoint specific guidance, May 2008 [2].
The test substance ignites easily.
The burning time for 100 mm was 8 seconds and hence less than 45 sec. Therefore DOC-6114 is considered as highly flammable according to EC guideline A.10.

Executive summary:

The flammability of Zirconium, dimethyl[[2,2'''-[1,3-propanediylbis(oxy-κO)]bis[3'',5,5''-tris(1,1-dimethylethyl)-5'-methyl[1,1':3',1''-terphenyl]-2'-olato-κO]](2-)]-, (OC-6-33)-,was determined according to EC Regulation No 440/2008, Guideline A.10 [1] in accordance with European Chemicals Agency (ECHA), Guidance on information requirements and chemical safety assessment, Chapter R.7a, Endpoint specific guidance, May 2008 [2].

The test substance ignites easily.

The burning time for 100 mm was 8 seconds and hence less than 45 sec. Therefore DOC-6114 is considered as highly flammable according to EC guideline A.10.

Reference 2

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

Interpretation of results:

not classified based on GHS criteria

Reference 3

Endpoint:

self-heating substances / mixtures

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 a liquid

Reference 4

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Type of information:

calculation (if not (Q)SAR)

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: worst case calculation based on maximum production of methane due to known instanteous hydrolysis of the metal-methyl bonds

Principles of method if other than guideline:

calculation based on maximum production of methane

Key result

Test procedure:

other: calculation based on production of 2 moles of methane for 1 mole of complex within 1 minute

Max. rate of gas release:

46.6 L/kg min

Identity of evolved gas:

as specified:

Remarks:

methane

Remarks on result:

vigorous reaction with water and spontaneous ignition of the evolved gas

Interpretation of results:

Category 1 (substances or mixtures which in contact with water release flammable gases which may ignite spontaneously) based on GHS criteria

Conclusions:

Maximum expectable gassing rate for DOC-6114 is 46.6 L/kg/minute

Executive summary:

Maximum expectable gassing rate for DOC-6114 is 46.6 L/kg/minute

Description of key information

The substance is a highly flammable solid. The substance is not pyrophoric. The substance reacts with water to emit flammable gases (methane).

Key value for chemical safety assessment

Flammability:

flammable

Justification for classification or non-classification

The substance is a highly flammable solid. The substance is not pyrophoric. The substance reacts with water to emit flammable gases (methane).