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: 500-078-0
CAS number: 31923-84-9
1 - 4.5 moles propoxylated
Hydroxyl Radical Second-order Rate Constant (cm3/molecule*sec)
*Estimated half-life based on hydroxyl
radical concentration of 500,000 molecules/cm3and 24 hr. day
The lowest-molecular weight
homologues of the UVCB substance are expected to have the longest
half-lives in the atmosphere. This is due to relative low molecular
weith compared to the highest molecular weight homologue; and the mode
of degradation is expected to be the same for all homologues. The
estimated half-life for the lowest-molecular weight homologue is used to
represent the atmospheric half-life for all components of the UVCB
substance in the chemical safety assessment.
Estimated half-lives for the components of this UVCB substance range
from 3.5 to 14.3 hours (Dow, 2010).
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.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again