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Physical & Chemical properties

Explosiveness

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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
Justification for type of information:
JUSTIFICATION FOR DATA WAIVING
Cyanuric acid does not contain any chemical groups identified as potentially explosive within the molecule and therefore the test is scientifically unjustified
Endpoint:
explosiveness
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Principles of method if other than guideline:
A series of tests were conducted to determine if samples of cyanuric acid could be made to ignite. Specific tests were conducted as follows: Pressures and rates of pressure rise as a function of dust cloud concentration in a 6.7 cubic foot spherical vessel. Minimum ignition energy of a dust cloud, minimum ignition of a dust cloud and combustibility of vapours evolved at temperatures between ambient and 500°F (260 °C)
GLP compliance:
no

The maximum explosion pressure and the maximum rate of pressure rise could not be determined as the materials could not be made to explode in the test apparatus. The minimum ignition energy could not be determined as the materials could not be made to explode at the upper energy level (24 watt continuous spark) of the test apparatus. The minimum ignition temperature of a dust cloud could not be determined as the materials could not be made to ignite at the upper temperature level 1500°F, 816°C of the test temperature. Vapours evolved from the materials ambient temperature and 500°F (260°C) could not be made to explode.

Conclusions:
Cyanuric acid dust is not explosive

Description of key information

Explosive properties are also predicted to be negative based on the chemical structure of cyanuric acid. To support this statement a series of tests were conducted to determine if samples of cyanuric acid could be made to ignite under various conditions.

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

Cyanuric acid does not contain any chemical groups within the molecule that may be associated with explosivity. Tests with cyanuric dust revealed no explosive properties.

Justification for classification or non-classification

Cyanuric acid is not explosive, based on structure and supporting tests with cyanuric acid dust. Classification is not required.