Registration Dossier

Administrative data

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental starting date: 20 October 2017 Experimental completion date: 17 November 2017
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
GLP compliance:
yes
Type of method:
differential scanning calorimetry

Test material

Constituent 1
Chemical structure
Reference substance name:
1,3,4-Thiadiazole-2(3H)-thione, 5-(tert-dodecyldithio)-
EC Number:
813-543-0
Cas Number:
73984-93-7
Molecular formula:
C14H26N2S4
IUPAC Name:
1,3,4-Thiadiazole-2(3H)-thione, 5-(tert-dodecyldithio)-
Test material form:
liquid
Details on test material:
- Storage: in a sealed container at room temperature
Specific details on test material used for the study:
Information as provided by the Sponsor. The Certificate of Analysis provided by the Sponsor is attached (Please see Attachment Section of this Summary).

Identification: A-153
Appearance/Physical state: pale yellow viscous liquid
Batch: B16001086
Purity: UVCB Substance (treat as 100%)
Expiry date: 01 March 2018
Storage conditions: room temperature, in the dark

Results and discussion

Boiling point
Key result
Boiling pt.:
ca. 519 K
Atm. press.:
101.3 kPa
Decomposition:
ambiguous

Any other information on results incl. tables

Results

The thermographic data for determinations 1 and 2 are shown in the following table. The thermograms for determinations 1 and 2 are shown in the Attachment Section of this Summary.

Thermographic Data

Thermal Event

Interpretation

Temperature

Determination 1

Determination 2

ºC

K

ºC

K

Endotherm

Phase transition - boiling

245.4

518.6

245.8

519.0

Atmospheric pressure:             101.3 kPa

After heating to 450 °C, the samples had lost approximately 98% of their original mass.

Boiling point:              Mean Boiling Temperature:  245.6 ± 0.5 °C  (518.8 ± 0.5 K)

Applicant's summary and conclusion

Conclusions:
The boiling temperature of the test item was determined to be 246 ± 0.5 °C (519 ± 0.5 K) at 101.3 kPa.
Executive summary:

The determination was carried out by differential scanning calorimetry, using a procedure designed to be compatible with Method A.2 Boiling Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 103 of the OECD Guidelines for Testing of Chemicals, 27 July 1995 and Method 830.7220 of the OCSPP Guidelines, August 1996.

Conclusion

The boiling temperature of the test item was determined to be 246 ± 0.5 °C  (519 ± 0.5 K) at 101.3 kPa.