Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Remarks:
Reliable method according to standard operating procedure of the testing institute

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Principles of method if other than guideline:
Differential Scanning Calorimetry
Type of method:
thermal analysis

Test material

Constituent 1
Chemical structure
Reference substance name:
Barbituric acid
EC Number:
200-658-0
EC Name:
Barbituric acid
Cas Number:
67-52-7
Molecular formula:
C4H4N2O3
IUPAC Name:
pyrimidine-2,4,6(1H,3H,5H)-trione

Results and discussion

Melting / freezing point
Melting / freezing pt.:
>= 250 °C
Decomposition:
yes
Decomp. temp.:
>= 260 °C
Remarks on result:
other: immediately after the endothermic process (melting) decomposition reaction starts (energy -270 J/g)

Applicant's summary and conclusion