Registration Dossier

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
explosive properties of explosives
Type of information:
other: Expert judgement
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Accepted and validated procedure for assessing explosion risk on theoretical grounds.
Reason / purpose for cross-reference:
reference to same study
Qualifier:
no guideline followed
Principles of method if other than guideline:
Theoretical consideration, based on chemical structure
GLP compliance:
no
Remarks:
Not relevant
Key result
Parameter:
other: No measurements made (theoretical value)
Remarks on result:
not measured/tested
Remarks:
Theoretical consideration, based on chemical structure.

Based on its molecular formula C8H6O4 and molecular weight of 166, the oxygen balance calculated for TPA is -145%.

A substance shall not be classified as explosive if it contains chemical groups associated with explosive properties which include oxygen and the calculated oxygen balance is less than -200. The oxygen balance calculated for TPA exceeds this trigger value.

Interpretation of results:
non explosive
Conclusions:
According to theoretical considerations based on chemical structure, terephthalic acid does not to possess explosive or oxidising properties. Terephthalic acid is unlikely to undergo rapid decomposition accompanied by the evolution of gases or release of heat and therefore does not present a risk of explosion.
Executive summary:

Based on chemical structure, terephthalic acid does not contain any of the groups associated with explosive properties. The molecular weight of TPA is 166 and the calculated oxygen balance value is -145%. Terephthalic acid is not classified for transport as an explosive or oxidising substance. Terephthalic acid is predicted not to possess explosive or oxidising properties. TPA is unlikely to undergo rapid decomposition accompanied by the evolution of gases or release of heat and therefore does not present a risk of explosion.

Description of key information

According to theoretical considerations based on chemical structure, terephthalic acid does not to possess explosive or oxidising properties.  Terephthalic acid is unlikely to undergo rapid decomposition accompanied by the evolution of gases or release of heat and therefore does not present a risk of explosion.  

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

Justification for classification or non-classification

Based on chemical structure, terephthalic acid does not contain any of the groups associated with explosive properties. The molecular weight of TPA is 166 and the calculated oxygen balance value is -145%. Terephthalic acid is not classified for transport as an explosive or oxidising substance. Terephthalic acid is predicted not to possess explosive or oxidising properties. TPA is unlikely to undergo rapid decomposition accompanied by the evolution of gases or release of heat and therefore does not present a risk of explosion.