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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Physical & Chemical properties


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Description of key information

The relative density of Cyanuric chloride at ambient temperature (compared to water at 4 °C) is D4(21.6°C)= 1.904.

Key value for chemical safety assessment

Relative density at 20C:

Additional information

A study according to OECD TG 109 and Regulation (EC) No 440/2008 method A.3 was conducted. The density of Cyanuric chloride was measured at ambient temperature (21.6 degree C +- 0.2 degree C) with a calibrated gas comparison pycnometer. Two test series with different weights were performed. The mean of the density for the two test series was determined to be 1.904 g/cm3. A supporting study was conducted using x-ray determination of the molecular orientation of Cyanuric chloride. The density of Cyanuric chloride is determined to be 1.92 g/cm3. This value was verified by another publication using calculation of the density from crystal structure. Here the density was calculated to be 1.93 g/cm3 confirming the value of the key study.