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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Appearance / physical state / colour

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Administrative data

Link to relevant study record(s)

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Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
From the 24th of June to the 3th of July, 2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
other: OECD Guideline 102
Qualifier:
according to guideline
Guideline:
other: OECD Guideline 103
Principles of method if other than guideline:
SOP-STR 028
Differential scanning calorimetry or DSC is a thermoanalytical technique in which the difference in the amount of heat required to increase the temperature of a sample and reference is measured as a function of temperature. Both the sample and reference are maintained at nearly the same temperature throughout the experiment. Generally, the temperature program for a DSC analysis is designed such that the sample holder temperature increases linearly as a function of time.Differential scanning calorimetry can be used to measure a number of characteristic properties of a sample. Using this technique it is possible to observe fusion and crystallization events as well as glass transition temperatures Tg. DSC can also be used to study oxidation, decomposition as well as other chemical reactions.
GLP compliance:
no
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Colour:
yellow
Odour:
odourless
Substance type:
organic
Conclusions:
The substance is a solid at room temperature
Executive summary:

Method

Differential Scanning Calorimetry (DSC) according to the OECD Test Guidelines 102 and 103.

Results

From 25 -180 °C water/solvent is released, followed by a decomposition of the product between 188 - 297 °C (onset at 205.3 °C; enthalpy 62.6 J/g).

Conclusion

The test item is a solid at 1013 hPa in a range of 20 °C and 188 °C.

Endpoint:
appearance / physical state / colour
Type of information:
other: qualitative assessment
Adequacy of study:
weight of evidence
Study period:
July 1st, 2015
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: All evaluations are based on information about specification (technical standard), experience in dealing with the substance and visual evaluation.
Principles of method if other than guideline:
Physical observation (qualitative assessment)
GLP compliance:
no
Physical state at 20°C and 1013 hPa:
solid
Form:
powder
Colour:
yellow
Odour:
odourless
Substance type:
organic
Conclusions:
The substance is an odourless yellow powder
Executive summary:

Based on handling and visual observation (qualitative assessment) the substance is an odourless yellow powder

Description of key information

Odourless yellow powder

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
solid

Additional information

Based on handling and visual observation (qualitative assessment) the substance can be described as an odourless yellow powder. Furthermore based on outcomes deriving from the Differential Scanning Calorimetry (DSC) performed to define melting and boiling points, it can be confirmed that substance is solid at room temperature.