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EC number: 255-449-7
CAS number: 41583-09-9
No data are
available. As the substance is a water soluble salt of phosphate,
effects can be read-across from the cation, which is likely to have the
more important effects.Inbiological
is an abundant in cells and body fluids.In
ecological terms, because of its important role in biological systems,
phosphate is a highly sought-after resource. Thus, read-across from
component CAS Reg.-No. 108-78-1, melamine, is justified.
Test results of a MITI test for ready
biodegradability, 3 Zahn-Wellens assays for inherent biodegradability
and 2 studies on Biochemical Oxygen Demand are reported. The individual
results of the studies are consistent: Melamine is not readily
biodegradable and also not inherently biodegradable.
Addition of glucose, in the absence of NH4+,
enables the microorganisms to use melamine as only nitrogen source
With activated sludge taken from an
industrial waste water treatment plant as the inoculum, a degradation of
up to 16 % was observed within 20 d (Pagga 1991). A rapid and complete
primary degradation of the molecule within 8 h was detected with an
activated sludge taken from an industrial waste water treatment plant
from a producer of melamine (Fimberger 1997).
Degradation occurs by hydrolytic deamination
to ammeline, ammelide and cyanuric acid, and lastly to CO2 and NH4+
Nitrification was investigated in soil
(Hauck 1964): Nitrification of melamine from powders was slightly
greater than from solutions and considerably greater than from granules
of these materials. Up to ca. 18 % of the nitrogen in the molecule are
converted to nitrate within 24 weeks.
Nitrification was also observed by specific
strains of Pseudomonas, Nitrosomonas and Klebsiella Hockenbury 1977,
Tillmann 1990, Jutzi 1982 and Bollag 1991.
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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