Neodecanoic acid, iron salt

Melting point / freezing point

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

The study was initiated on 13 April 2017 and completed on the date the final report was signed by the Study Director.

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Version / remarks:

The experimental procedures followed those described in OECD Guideline 102 for the melting temperature determination and OECD Guideline 103 for the boiling temperature determination.

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Remarks:

A Mettler-Toledo DSC1 differential scanning calorimeter running STARe version 10.00 software was used for all determinations.

Specific details on test material used for the study:

Sponsor batch: E01133-065
Purity: 100 %
Arrival date: 6 March 2017
Re-test date: 31 July 2019
Storage conditions: Refrigerated (2 to 8°C) under nitrogen. The test substance was supplied in a translucent HDPE container and has been stored in this container. The test substance was stored in a fridge, in the dark when not in use.

Key result

Decomp. temp.:

ca.

Remarks on result:

other: No melting point was observed, but a thermal event characteristic of a glass transition was observed with an onset temperature of -53°C (mean of -53.01 and -53.60°C).

No melting point was observed, but a thermal event characteristic of a glass transition was observed with an onset temperature of -53°C (mean of -53.01 and -53.60°C).

Conclusions:

No melting point was observed, but a thermal event - characteristic of a glass transition - was observed with an onset temperature of -53°C (mean of -53.01 and -53.60°C).

Executive summary:

In a study, according to OECD 102, the melting point of neodecanoic acid, iron salt has been characterised.

No melting point was observed, but a thermal event - characteristic of a glass transition - was observed with an onset temperature of -53°C (mean of -53.01 and -53.60°C).

Reference 2

Endpoint:

melting point/freezing point

Type of information:

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

Adequacy of study:

supporting study

Justification for type of information:

For details and justification of read-across please refer to the report attached in section 13 of IUCLID.

Reason / purpose for cross-reference:

read-across source

Key result

Melting / freezing pt.:

-51 °C

Atm. press.:

1 013 hPa

Sublimation:

no

Conclusions:

The pour point for neodecanoic acid has been determined to -51°C.

Executive summary:

In a study, according to ASTM D5950, the melting point of neodecanoic acid has been characterised. The respective value of the pour point has been determined to -51°C.

This information is used in a read-across approach in the assessment of the target substance. For details and justification of read-across please refer to the read-across report attached to IUCLID section 13.

Description of key information

In a study, according to OECD 102, the melting point of neodecanoic acid, iron salt has been characterised. No melting point was observed, but a thermal event - characteristic of a glass transition - was observed with an onset temperature of -53°C (mean of -53.01 and -53.60°C).

As a supporting approach, read-across has been made to neodecanoic acid (EC No. 248 -093 -9; CAS No. 26896 -20 -8). Since the determined value of -51°C is close to that of neodecanoic acid, iron salt, the read-across approach to the structural analogue can therefore be considered as justified.