2-Propenoic acid, ethyl ester, reaction products with mixed substituted alkyl esters of phosphorodithioic acid and propylene oxide

Flash point

Administrative data

Endpoint:

flash point of flammable liquids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

18 Sep 2017 - 08 Jan 2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Cross-reference

Reason / purpose for cross-reference:

assessment report

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

18 Sep 2017 - 08 Jan 2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Version / remarks:

2008

Deviations:

no

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Version / remarks:

1995

Deviations:

no

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7200 (Melting Point / Melting Range)

Version / remarks:

1998

Deviations:

no

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Key result

Decomposition:

yes

Decomp. temp.:

150 °C

Remarks on result:

other: Glass transition point: -49.6°C. No melting/freezing point was determined between 25°C and -90°C.

TGA EXPERIMENT (PRELIMINARY TEST)

Significant decrease of weight from 180°C. 25% weight loss at 190°C and 70% weight loss at 294°C.

After the experiment, a black molten residue remained in the sample container (original colour: pale yellow). The change of the colour indicated reaction and/or decomposition of the test item.

 

DSC EXPERIMENT 1

During cooling a glass transition was observed between -40°C and -80°C. During heating a glass transition was observed between -25°C and -75°C. The inflection point was -49.201°C. From 150°C a slight deviation of the baseline into the exothermic direction was observed. After the experiment, a colourless molten residue remained in the sample container.  The exothermic effect was probably obtained due to reaction and/or decomposition of the test item.

DSC EXPERIMENT 2

A higher end temperature was used in the Experiment 2 to gain more insight into the slight exothermic effect observed in Experiment 1. Similar results as in Experiment 1 were obtained for the glass transition. The inflection point of the glass transition was 50.052°C. From 150°C on, however, a large endothermic effect followed by an exothermic effect was observed. After the experiment, a black molten residue remained in the sample container. The change of the colour indicated reaction and/or decomposition of the test item.

DATA HANDLING

The glass transition temperature was determined as the mean inflection point of Experiment 1 and Experiment 2.

 

Conclusions:

A glass transition temperature of -49.6°C was determined. The substance has no melting/freezing temperature between 25°C and -90°C.

Executive summary:

Differential Scanning Calorimetry (DSC) experiments were performed in a GLP study according to EC A.1, OECD 102 and OPPTS 830.7200.

The liquid substance has no melting/freezing temperature between 25°C and -90°C. From duplicate measurements the mean glass transition temperature was determined to be -49.6°C.

During heating from 25°C, reaction and/or decomposition of the substance started at 150°C.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.9 (Flash-Point)

Version / remarks:

2008

Test guideline 2

Qualifier:

according to guideline

Guideline:

other: ASTM D7094: “Standard Test Method for Flash Point by Modified Continuously Closed Cup (MCCCFP) Tester”

Version / remarks:

2012

Deviations:

not specified

Principles of method if other than guideline:

According to ECA.9 the flash point can be determined by an equilibrium method or a non-equilibrium method. Several methods are mentioned in the guideline. ASTM D7094 is not one of the methods mentioned in the guideline but is a commonly used and safer (low sample volume) alternative for the non-equilibrium ISO 2719 Pensky martens closed cup method.

GLP compliance:

yes

Type of method:

other: modified continuously closed cup

Flash point apparatus:

other: Eraflash (Eralytics, Austria)

Dynamic viscosity of test material:

no data

Test material

Test material information

Constituent 1

Test material form:

liquid

Details on test material:

- Physical appearance: pale yellow liquid
- Storage conditions: at room temperature

Specific details on test material used for the study:

no boiling before decomposition.

Results and discussion

Flash point

Key result

Flash point:

125 °C

Atm. press.:

1 013 hPa

Any other information on results incl. tables

Test 1: 126°C

Test 2: 125°C

As the difference between the results is ≤ 6°C, the lowest flash point value obtained was reported as the flash point of the substance.

Applicant's summary and conclusion

Interpretation of results:

other: not classified under CLP or GHS

Conclusions:

The flash point of the substance was determined to be 125°C (at 1013 hPa).

Executive summary:

The flash point of the substance was determined using the modified continuously closed cup ASTM D7094 method (GLP study). The flash point was determined in duplicate obtaining a lowest value of 125°C (at 1013 hPa).