Registration Dossier
Registration Dossier
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EC number: 208-052-8 | CAS number: 506-77-4
Endpoint summary
Administrative data
Description of key information
Hydrolysis
Cyanogen chloride is extremely volatile from water surfaces and hydrolyzes rapidly. Under alkaline conditions, the substance reacts to CNO(-) and forms hydrochloric acid and cyanic acid (1/3). Cyanogen chloride is unstable in raw surface waters; half-lives ranging from 1 minute 45 seconds to 10 hours at 5 deg C in ambient waters (2) and 5.25 hrs at pH 8 at 20 deg C(3) have been reported. Hydrolysis Rate constant at pH 7 is about 4 X 10-3 mols-1sec-1.
Phototransformation in water
Cyanogen chloride does not contain chromophores that absorb at wavelengths > 290 nm and therefore, is not expected to be susceptible to direct photolysis by sunlight.
Biodegradation
Cyanogen chloride is extremely volatile and hydrolyzes rapidly, suggesting that biodegradation will not be an important environmental fate process.
Bioaccumulation
Cyanogen chloride is extremely volatile and hydrolyzes rapidly, suggesting that bioconcentration will not be an important environmental fate process.
Transport and Distribution
The high volatility and rapid hydrolysis of cyanogen chloride would suggest that adsorption to soil and sediment is not an important environmental fate process.
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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