N-glycylglycine

Explosiveness

Administrative data

Endpoint:

explosive properties of explosives

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties

other:

Justification for type of information:

The decomposition energy of the substance is less than 500J/g as determined by DSC-Measurement.
See further information in the cross-ref.

Cross-reference

Reason / purpose for cross-reference:

data waiving: supporting information

Reference

Endpoint:

thermal stability

Type of information:

experimental study

Adequacy of study:

key study

Study period:

25 June - 23 October 2020

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

other: UN Manual of Tests and Criteria

Version / remarks:

7th edition

Deviations:

no

Qualifier:

according to guideline

Guideline:

OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)

Version / remarks:

1981

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test substance thermally stable:

yes

Key result

Operating temp.:

ca. 20 - <= 500 °C

Remarks on result:

other: an endothermic effect starting at a temperature of approx. 210°C was observed (melting of the test item). A second endothermic effect was observed starting at a temperature of approx. 250°C (decomposition of test item starting at approx. 230°C)

The test item in closed glass crucibles showed an endothermic effect starting at a temperature of approx. 210 °C, which can be assigned to the melting of the test item accompanied its decomposition. A second endothermic effect was observed starting at a temperature of approx. 250 °C. The results of the DSC-measurements are summarized below:

Measurement No.	Sample weight / mg	Onset / °C	Energy / J/g
PN19900	5.02	210 250	+300 (endothermic) +170 (endothermic)
PN19906	4.02	210 250	+290 (endothermic) +150 (endothermic)

Conclusions:

The test item Glycyl glycine (CAS no. 556-50-3) showed an endothermic effect starting at a temperature of approx. 210 °C, which can be assigned to the melting of the test item accompanied by its decomposition. A second endothermic effect was observed starting at a temperature of approx. 250 °C.

Executive summary:

The test item Glycyl glycine (CAS no. 556-50-3) showed an endothermic effect starting at a temperature of approx. 210 °C, which can be assigned to the melting of the test item accompanied by its decomposition. A second endothermic effect was observed starting at a temperature of approx. 250 °C.