Registration Dossier
Registration Dossier
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EC number: 242-354-0 | CAS number: 18472-51-0
Endpoint summary
Administrative data
Description of key information
Additional information
The adsorption of Chlorhexidine digluconate on sludge, soil and sediment is expected to be relatively high. As the substance is supposed to be not readily degradable, adsorption is expected to be the major removal mechanism in biological sewage treatment plants. The high sorption indicates that the substance is nearly immobile in soils.
Chlorhexidine digluconatehas a relatively low vapour pressure in the range of 5.1 • 10-5hPa at 25 °C. With its estimated low Henry’s law constant of 1.14 • 10-25Pa · m3/mol at 25 °C, the substance is not volatile from aqueous solutions under environmental conditions.
The theoretical distribution of the active substance was calculated using the fugacity model (Level 1) according to Mackay (1991) representing a closed environment at equilibrium.
Affected compartment(s) |
Distribution |
air |
< 0.1% |
water |
3.6% |
sediment |
46.5% |
soil |
49.8% |
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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