L-Glutamic acid, N-[4-(4-oxobutyl)benzoyl]-, 1,5-diethyl ester

Explosiveness

Description of key information

Intermediate 2945989 was classified as non-explosive, by analysis of structure function groups of the molecule and experimental data from Mechanical sensitivity shock testing.  Supplementary data from thermal analysis:  Differential Scanning Calorimetry of the molecule also supports the classification.  

Key value for chemical safety assessment

Explosiveness:

non explosive

Additional information

Methodology - Mechanical Sensitivity Shock Testing

Methodology used to perform mechanical shock sensitivity testing was ESCIS (Expert Commission of Safety in the Chemical Industries, Switzerland) Book 1, 1998, 4th edition, Falling Hammer Test Type MP-3. Test material was milled and dried to form a particle size of <63microns. Testing appartus was assembled to achieve impact energy of 39Nm.

Mechanical Sensitivity Shock Testing Data

A flame or detonation was not observed when any of the ten 100mg samples were subjected to the falling hammer test apparatus. Therefore the test result is regarded as negative i.e. no flame (sparks) or detonation were observed during the testing. An overall rating of 1 was assigned to the test results.

Analysis - Structural functional groups of Intermediate

Intermediate 29459589 was found not to contain any of the chemical groups associated with explosive properties listed in ECHA Guidance on Information Requirements and Chemical Safety Assessment, Chapter R.7A.

Thermal Analysis Data

Exothermic decomposition energy 36.7j/g

Onset of exothermic decomposition 133^oC.

Justification for classification or non-classification

Justification for non-explosive classification:

• No chemical groups associated with explosive properties present in molecule.
• Material did not test positive in the BAM fall hammer test.
• Low exothermic decomposition energy 36.7j/g obtained by differential scanning calorimetry analysis.