Registration Dossier
Registration Dossier
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EC number: 231-744-6 | CAS number: 7718-98-1
Endpoint summary
Administrative data
Description of key information
VCl3 is very hygroscopic and gives, in contact of humidity :
VCl3 + H2O => VOCl + 2 HCL
VOCl + 1/2Cl2 => VOCl2
The dissolution reaction in water is instantaneous (half-life of VCl3 < 1 hour – VCl3 can be considered as a hydrolytically unstable substance), gives white fumes of HCl and the pH of the solution is < 2.
This reaction is verified weekly in a laboratory by the color change when VCl3 is exposed to the air (red to green).
Testing for hydrolysis is then technically impossible and scientifically unjustified: instantaneous decomposition of VCl4 in presence of humidity of air do not allow hydrolysis testing.
Additional information
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