Registration Dossier
Registration Dossier
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EC number: 221-201-1 | CAS number: 3030-47-5
Endpoint summary
Administrative data
Description of key information
Additional information
The substance Pentamethyldiethylentriamine (PMDETA) can be regarded as hydrolytically stable substance. Half-life time at 25°C and at pH 4, 7 and 9 was estimated higher than 1 year. The fact is based on the study „Hydrolysis as a function of pH“(Kalhousova, 2013). No information about phototransformation in air, water and soil is available.
PMDETA can be regarded as not biodegradable under the test condition according to experimental results of ready (BASF, 1991a, Japanese Government, 2010, Consior and Madsen, 1988) and inherent (BASF, 1987 and BASF, 1991b) biodegradability tests.
The Chemical Safety Assessment did not indicate the need to investigate further the effects of the substance on sediment organisms and simulation testing on ultimate degradation in surface water or sediment. There are no experimental data available of PMDETA for bioaccumulation in aquatic or terrestrial organisms.
Bioconcentration factor (BCF) was estimated using model BCFBAF - EPI Suite (US EPA, 2013a). BCF of 3.16 L/kg wet wt indicates low bioconcentration potential.
The Soil Adsorption Coefficient (Koc) value of 36.53 L/kg was estimated using MCI method - model KOCWIN v2.00 (US EPA, 2013b). The estimated value indicates low sorption to soil / sediment and moderate migration to ground water.
The Henry's Law Constant (HLC) of 1.60E-006 Pa-m3/mole was calculated using the model HENRYWIN, EPI Suite (US EPA, 2013c). The estimated HLC value is supported with experimental result from study by Consior and Madsen, 1988, where the air/water partition coefficient for PMDETA was determined to be less than 1 x 10 -4 at 25°C. Both results indicate that the material will tend to remain in an aqueous solution.
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