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Administrative data

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental starting date: 28 April 2016 Experimental completion date: 14 April 2017
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
Deviations:
no
GLP compliance:
yes
Type of method:
differential scanning calorimetry

Test material

Constituent 1
Chemical structure
Reference substance name:
O,O-dibutyl hydrogen thiophosphate, compound with 1-octylamine (1:1)
EC Number:
300-947-2
EC Name:
O,O-dibutyl hydrogen thiophosphate, compound with 1-octylamine (1:1)
Cas Number:
93964-99-9
Molecular formula:
C8H19N.C8H19O3PS
IUPAC Name:
octan-1-amine dibutyl sulfanylphosphonate
impurity 1
Chemical structure
Reference substance name:
Octylamine
EC Number:
203-916-0
EC Name:
Octylamine
Cas Number:
111-86-4
Molecular formula:
C8H19N
IUPAC Name:
octan-1-amine
Test material form:
liquid
Specific details on test material used for the study:
Information as provided by the Sponsor. The Certificate of Analysis provided by the Sponsor is presented as Annex 1 (Please see Attachment Section of this Summary).

Identification: X-19575 Phosphorothioic acid, O,O-dibutyl ester, compd. with 1-octanamine, CASRN 93964-99-9
Appearance/Physical state: Amber colored viscous liquid
Batch: X-019575-00-00
Purity: 60 - 100%
Expiry date: 01 June 2017
Storage conditions: Room temperature, in the dark

Results and discussion

Boiling point
Key result
Atm. press.:
100.8 kPa
Decomposition:
yes
Decomp. temp.:
ca. 201 °C

Any other information on results incl. tables

Results

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

Thermographic Data

Thermal Event

Interpretation

Temperature

Determination 1

Determination 2

ºC

K

ºC

K

Exotherm

Onset of decomposition

201

475

203

476

Endotherm

Volatilization of decomposition products

232

505

233

506

Atmospheric pressure:             100.8 kPa

After heating to 400 °C, the test item had lost 71% and 79% of the original mass for Determinations 1 and 2 respectively.

Boiling point:             Decomposition from approximately 201ºC(475 K)

Applicant's summary and conclusion

Conclusions:
The test item was determined to decompose from approximately 201 °C (475 K) at 100.8 kPa. As the test item decomposed, no boiling point could be determined.
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 test item was determined to decompose from approximately 201 °C (475 K) at 100.8 kPa. As the test item decomposed, no boiling point could be determined.

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