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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Boiling point

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Administrative data

Link to relevant study record(s)

temperature of decomposition (state purity)
Type of information:
experimental study
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
equivalent or similar to guideline
EU Method A.2 (Boiling Temperature)
GLP compliance:
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
Lot 201009MA2 solid
Key result
Atm. press.:
ca. 166 Bar
Decomp. temp.:
ca. 348 °C
The substance "By-product from Guanidinoacetic acid manufacturing" decomposes at 348 °C.
Executive summary:

Approx. 2 g of substance were heated from 20 °C - 400 °C under isochoric conditions with a rate of 4,8 °C/min. Exothermia and increase in pressure should be determined.

Up to 400 °C exothermia could not be observed. The maximum pressure determined in this experiment was 166 bar at 348 °C. After cooling to 26 °C pressure was 140 bar.

The residue of the test substance was a black, charcoaled solid.

Description of key information

The test item was heated  under isochoric conditions.

At a temperature 348 °C the pressure increased to 169 bar.

Exothermia could not be observed.

Key value for chemical safety assessment

Temperature of decomposition (state purity):
348 °C

Additional information