[No public or meaningful name is available]

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

relative self-ignition temperature (solids)

Type of information:

read-across from supporting substance (structural analogue or surrogate)

Adequacy of study:

key study

Justification for type of information:

REPORTING FORMAT FOR THE ANALOGUE APPROACH

1. HYPOTHESIS FOR THE ANALOGUE APPROACH
This read-across is based on the hypothesis that source and target substances have similar toxicological and ecotoxicological properties because they share structural similarities with common functional groups: quaternary amines, esters, and fatty acid chains varying in their length and degree of (un)saturation. Moreover, the fatty acid chains are chemically simple structures which have no structural alerts for toxicity, and which are closely related to substances of known low toxicity (i.e. stearic acid, oleic acid, linoleic acid, linolenic acid). Furthermore, the substances can be expected to have comparable breakdown products (MDEA or MDIPA and long chain fatty acids).

This read-across hypothesis corresponds to scenario 2 - different compounds have qualitatively and quantitatively the same type of effects - of the read-across assessment framework i.e. properties of the target substance MDEA-Esterquat C18 unsatd. are predicted to be similar to those of the source substances MDIPA Esterquat C18 unsatd., MDEA-Esterquat C16-18 and C18 unsatd. and MDIPA-Esterquat C16-18 and C18 unsatd.

Therefore, read-across from the available physicochemistry, toxicity and ecotoxicity studies with the source substances MDIPA Esterquat C18 unsatd., MDEA-Esterquat C16-18 and C18 unsatd. and MDIPA-Esterquat C16-18 and C18 unsatd. are considered as an appropriate adaptation to the standard information requirements of the REACH Regulation for the target substance MDEA-Esterquat C18 unsatd., in accordance with the provisions of Annex XI, 1.5 of the REACH Regulation.


2. SOURCE AND TARGET CHEMICAL(S) (INCLUDING INFORMATION ON PURITY AND IMPURITIES)
please refer to read-across justification attached to Iuclid section 13

3. ANALOGUE APPROACH JUSTIFICATION
please refer to read-across justification attached to Iuclid section 13

4. DATA MATRIX
please refer to read-across justification attached to Iuclid section 13

Reason / purpose for cross-reference:

read-across: supporting information

Reason / purpose for cross-reference:

read-across source

Reason / purpose for cross-reference:

read-across source

Remarks on result:

other: no self ignition expected up to decomposition temperature

Description of key information

no self-ignition is expected up to the decomposition temperature (read-across from MDEA-Esterquat C16-18 and C18 unsatd., and MDIPA-Esterquat C18 unsatd.)

Additional information

No experimental data are available for the target substance MDEA-Esterquat C18 unsatd. However, studies on auto-ignition are available for the structurally related source substances MDEA-Esterquat C16-18 and C18 unsatd., and MDIPA-Esterquat C18 unsatd. A justification for read-across is attached to Iuclid section 13.

 

The auto-ignition temperature of MDIPA Esterquat C18 unsatd. was determined according to EU Method A.15 (30 May 2008) and DIN 51794 (2003). The auto-ignition temperature was determined to be 340°C at 1012 hPa.

 

MDEA-Esterquat C16-18 and C18 unsatd. proved to be not self-ignitable between 20°C and the melting temperature (54°C) in a study conducted according to EU Method A.16 (Relative Self-Ignition Temperature for Solids; 2008).

 

Based on the results with structurally related source substances, no self-ignition is expected up to the decomposition temperature.