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EC number: 701-241-0
CAS number: -
Reaction Products of C3 alcohols and C3 alkenes obtained as by-products
from the manufacture of propan-2-ol by hydration of propylene
was found to be not readily biodegradable in an OECD 301 headspace test,
although it should be recognized that standard biodegradation methods
are of limited value for volatile and complex streams.
A review of the biodegradability of the major
constituents of the stream suggests that isopropyl ether is the most
persistent component. It has been shown to be not readily biodegradable
in a closed bottle test with unadapted inocula (Stone and Watkinson,
1983) and QSAR prediction (BIOWIN v4.1). More recent studies (Cano et
al, 1999 and Pruden et al, 2001), have shown that high removals rates of
isopropylether (IPE) can be demonstrated if exposed to acclimated
inocula; however for the purpose of hazard/persistence/ risk assessment,
IPE, cannot be considered to be readily biodegradable.
Given the potential persistence of IPE and
the result of the OECD 301 screening study for the whole stream, Reaction
Products of C3 alcohols and C3 alkenes obtained as by-products
from the manufacture of propan-2-ol by hydration of propylene,
cannot be considered to be readily biodegradable.
Cano 1999: Manuel L Cano, Mark E Wilcox, Remi van Compernolle, A Direct
Comparison of U.S. Environmental Protection Agency’s Method 304B and
Batch Tests for Determining Activated‐Sludge Biodegradation Rate
Constants for Volatile Organic Compounds, Water Environment Research,
1999 71 (7), 1345-1353.
Pruden 2001: Amy Pruden, Makram T. Suidan, Albert D. Venosa, and, and
Gregory J. Wilson, Biodegradation of Methyl tert-Butyl Ether under
Various Substrate Conditions, Environmental Science & Technology 2001 35
Stone C and Watkinson R (1983). Isopropyl ether: An assessment of ready
biodegradability. Report # SBGR.83.428. Shell Biosciences Laboratory,
Sittingbourne Research Centre, Sittingbourne, Kent, England.
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.
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