6-{4-[(1E)-3-methoxy-3-oxoprop-1-en-1-yl]phenoxy}hexyl methacrylate

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Nov. 2016 - Jan. 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Version / remarks:

July 1995

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Version / remarks:

May 2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

method according to Siwoloboff

Specific details on test material used for the study:

Name ROC-601
Batch no. S23PSG0816
Appearance white crystalline powder
Composition 99.5% purity, see analytical certificate in original study
CAS No. 439661-46-8
EINECS-No. not yet assigned
Molecular formula C20H26O5
Molecular weight 346.42 g/mol
Purity 99.5% by LC-UV
Homogeneity uniform crystalline powder
Production date 29. June 2016
Expiry date July 2017
Storage Room Temperature temperature (20 ± 5 °C), keep away from light

Key result

Boiling pt.:

272.3 °C

Atm. press.:

ca. 1 atm

Decomposition:

yes

Remarks on result:

other: Decomposition was indicated by colour change and physical state change

Observations pre-test

Observations	Temperatures
Test item started to melt	52 °C
Complete melted to a very slightly yellow liquid	65 °C
Now and then bubbles	Since 80 °C
Bubbles gone, up to 310 °C, the colour of the test item was from time to time darker	Since 150 °C
bubbles came again	Since 310 °C
Bubble chain with lots of small bubbles from the bottom, turned off gas burner	340 °C
The chain broke, the test item was brown liquid (decomposition during boiling)	300.0 °C
After cooling down the test item was brown liquid with dark brown deposit on the wall of the test tube over the liquid surface

 

Results Main Test

Determinations	Boiling point under decomp.
First determination (showed high deviation and was not used for evaluation)	300.8 °C (574.0 K)
Second determination	272.1 °C (554.3 K)
Third determination	272.4 °C (545.6 K)
Mean	272.3 °C (545.4 K)
Standard deviation	0.2 °C ( 0.2 K)

Conclusions:

The boiling point of the test substance ROC-601 was determined with 272.3 ± 0.2 °C (545.4 ± 0.2 K) under decomposition.

Executive summary:

The boiling point of the test substance was determined following the SIWOLOBOFF method. The boiling point under decomposition was determined with 272.3 ± 0.2 °C (545.4 ± 0.2 K).

This value is the mean of two independent determinations ± their standard deviation.

Decomposition was indicated by colour change and physical state change. As the test item decomposed during boiling, correction to standard pressure (101.325 kPa) using the Sidney-Young equation was not applied.

Description of key information

The substance ROC-601 has a boiling point of 272.3 °C under decomposition, indicated by colour change.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

272.3 °C

Additional information

The boiling point of the test substance was determined following the SIWOLOBOFF method by which the boiling point under decomposition was determined to be 272.3 ± 0.2 °C (545.4 ± 0.2 K) as the mean of two independent determinations ± their standard deviation. Decomposition of the substance was indicated by colour change and physical state change.