N-(1,3-Dimethylbutyl)-N

OECD SIDS
N-(1,3-DIMETHYLBUTYL)-N´-PHENYL-1,4-PHENYLENEDIAMINE
3. ENVIRONMENTAL FATE AND PATHWAYS ID: 793-24-8
DATE: 11.05.2005
H3BO3 0.185
MnCl2 x 4H2O 0.415
ZnCl2 0.003
CoCl2 x 6H2O 0.0015
CuCl2 x 2H2O 0.00001
Na2MoO4 x 2H2O 0.007
The test solution (nutrient medium) and the head space were air saturated.
Reliability : (2) valid with restrictions
Comparable to guideline study with acceptable restrictions
Flag : Critical study for SIDS endpoint
03.11.2004 (39)
Type : Abiotic
t1/2 pH4 : at °C
t1/2 pH7 : = 3 - 4 hour(s) at 24 °C
t1/2 pH9 : at °C
Deg. product :
Method : other: Monsanto Laboratory protocol; see test conditions
Year : 1993
GLP : Yes
Test substance :
Remark : 6PPD is an antiozonant and as such necessarily
reacts very quickly with oxygen. Therefore, fast oxidation
in dilute solutions, where oxygen is readily available, is
to be expected. The initial oxidation product is believed
to be quinondiimine, which itself is a very reactive
species. The quinondiimine can hydrolyze or form a polymer
by further oxidation giving very complicated mixtures of
products usually involving loss of the alkyl group.
Test condition : Degradation in pH 7 buffered deionized water
Reliability : (4) not assignable
Original reference not available
10.08.2003 (40)
3.1.3 STABILITY IN SOIL
3.2.1 MONITORING DATA
Type of measurement : concentration at contaminated site
Media : Air
Concentration :
Method : GC/FID
Method : The release of volatile rubber components from tyres during use was
examined by GC/FID
Result : During tyre use no emissions of volatile rubber components (including
6PPD) could be detected (Dannis 1975, cited according to BUA 1996)
Reliability : (2) valid with restrictions
Reliable source
Flag : Critical study for SIDS endpoint
08.11.2004 (5)
3.2.2 FIELD STUDIES
64
UNEP PUBLICATIONS