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: 202-795-1
CAS number: 99-86-5
Theoretical Oxygen Deman (ThOD) of test sustance was calulated to be
3.29 mg O2/mg
Table 2. O2 Uptake (mg O2/l adjusted to nominal
B1, B2, C1, C2, A1, A2, E1: Experimental O2 uptake values.
B = (B1 + B2)/2
D1 = 100 * (C1 -B)/ThOD * [S]
D2 = 100 * (C2 -B)/ThOD * [S]
where [S]: Initial test substance concentration (mg/l)
The biodegradation of the test item (alpha-terpinene) was assessed
according to the OECD TG 301F. It was shown that alpha-terpinene
undergoes 40% biodegradation after 28 days under the test conditions
which is below the 60% required in the guidelines to classify this
substance as "readily biodegradable". However, there was 62% degradation
after 60 days and 66% degradation at 70 days. As such, alpha-terpinene
should be regarded as not readily biodegradable but is inherently and
Key study: Test method according to OECD 301F / EU C.4 (Manometric
respirometry methods), GLP study. Alpha-terpinene underwent 40%
biodegradation after 28 days under the test conditions and should be
regarded as not readily biodegradable although inherently and ultimately
biodegradable since there was 62% degradation after 60 days and 66%
degradation at 70 days.
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.
Tato webová stránka používá cookies, aby se vám naše stránky používaly co nejlépe.
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