Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 210-871-0 | CAS number: 624-92-0
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
In the key study, several experiments have been carried out in a small atmospheric chamber of 150L then in the European large atmospheric chamber (200 m3) EUPHORE in Valencia, Spain, in presence of OH and, eventually, NOx. The reaction DMDS + OH shows that degradation products are formaldehyde HCHO, sulfur dioxide SO2 and methanesulfonic acid CH3SO3H. Mean half-life is about 40 minutes in normal condition. In polluted areas (presence of NOx) half-life can decrease to 15 minutes.
In the support studies DMDS shows 50%degradation (for indirect photolysis) between 1.1h (rate constant = 7.39e-13 cm³/molecule*sec) and 13.8 d (rate constant = < 8,3E-19 cm³/(molecule*sec).
Key value for chemical safety assessment
- Half-life in air:
- 40 min
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
