Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
30 October 2018 - 12 December 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report date:
2019

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
method according to Siwoloboff

Test material

Constituent 1
Chemical structure
Reference substance name:
6-methyl-3,4-dihydro-2H-1,4-benzoxazine
EC Number:
837-106-9
Cas Number:
71472-57-6
Molecular formula:
C9H11NO
IUPAC Name:
6-methyl-3,4-dihydro-2H-1,4-benzoxazine
Test material form:
liquid
Specific details on test material used for the study:
Identity: 6-methyl-3,4-dihydro-2H-1,4-benzoxazine
Appearance: Amber viscous liquid
Storage conditions: Refrigerated (2 to 8°C), dark, under nitrogen
Batch number: EXP-18-GM6341
Purity: 99% w/w
Expiry date: 01 February 2019

Results and discussion

Boiling point
Key result
Decomposition:
yes
Decomp. temp.:
ca. 150 °C

Any other information on results incl. tables

The results of duplicate definitive determinations on the substance were as follows:

Barometric pressure: 1017 mbar.

As the boiling tubes were heated at 1°C/minute, the samples were observed to darken at temperatures above approximately 150°C, indicating decomposition. When heated beyond this temperature in a preliminary trial, the sample continued to darken until boiling at approximately 280°C.

Applicant's summary and conclusion

Conclusions:
The boiling temperature of the substance was not determinable as the test item decomposed at temperatures above approximately 150°C before boiling.
Executive summary:

The purpose of this study was to examine some physicochemical properties of the test substance.  

The study was conducted in accordance with accepted principles in order to meet the requirements of REACH Regulation (EU) No 1907/2006 of the European Parliament and of the Council, Council Regulation (EC) No 440/2008 (as amended) of 30 May 2008 and the OECD Guidelines for Testing of Chemicals.

The boiling temperature of the substance was not determinable as the test item decomposed at temperatures above approximately 150°C before boiling according to EC method A.2 and OECD method 103.