Registration Dossier

Administrative data

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The study was performed according to guideline

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report Date:
2009

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: ASTM E2550-07 Standard Test Method for Thermal Stability by Thermogravimetry
Deviations:
no
GLP compliance:
no
Remarks:
ISO 9001/2000 Certified
Type of method:
other: thermogravimetric

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent

Results and discussion

Boiling point
Decomposition:
yes
Decomp. temp.:
195 °C
Remarks on result:
other: 93.2% of the test substance decomposes at 195 deg. C

Any other information on results incl. tables

TGA data show there was one thermal event resulting in weight loss associated with sample decompositon. This event occurred at a derivative peak value of 195 0C, and corresponds to a weight loss of 93.2%. The overall onset of sample weight loss occurred at approx. 187 0C.  A residue remained at 600 0C accounting for 6.8 % of the material. A TGA thermograph is attached as Figure 1.

Table 1. Results of TGA Analysis

Derivative Peak (oC)

% Weight Loss

 195

 93.2

Residue at 600 oC

 6.8

Applicant's summary and conclusion

Conclusions:
Analysis by TGA indicates the test substance decomposes before boiling. The test material showed weight loss associated with decomposition at a temperature of 195 deg. C.
Executive summary:

A thermogravimetric analysis performed according to the ASTM E2550 -07 guideline indicates the test substance decomposes before boiling.

The test material was heated under nitrogen up to  600 oC.  Examination of the TGA curve shows that weight loss associated with sample decomposition occurred. The onset of weight loss occurred at approx. 187 oC. There was one  main thermal event at a derivative peak value of  195  oC corresponding to a weight loss value of 93.2 %. A residue remained at  600 oC equivalent to 6.8 % of the material.