Helsinki -- The European Chemicals Agency (ECHA) has listed MDA (methylene diamine) and MOCA (2,2'-dichloro-4,4'-methylenedianiline) in its latest proposals to identify 20 chemicals as Substances of Very High Concern (SVHCs) and therefore as possible candidates for authorisation.
MDA is an intermediate in the production of MDI (methylene diphenyl diisocyanate), one of the major ingredients used in making polyurethanes of various types, while MOCA is a widely used curative for polyurethane elastomers.
ECHA says anyone can comment on these proposals within the next 45 days. The names of the substances, the reasons for their proposal as SVHC and their uses are provided in the attached table.
ECHA says "comments should focus primarily on the hazardous properties that qualify the chemicals as SVHCs and on the substance identity. In addition, interested parties can provide comments and further information on the uses, exposures and availability of safer alternative substances or techniques. They should be aware that these aspects will mainly be considered at the next stage of the process (i.e. selection of substances for authorisation), which includes a new round of public consultation."
The Member State Committee will review these comments when seeking an agreement on the identification of the proposed substances as SVHCs, and before ECHA includes the agreed substances on the Candidate List.
Substances on the Candidate List may be selected for authorisation.
The full list can be found on the ECHA website.
Nineteen of the substances are proposed because of their potentially serious effects on human health as carcinogenic and/or toxic for reproduction. One substance is proposed because of its endocrine disrupting properties and potential for serious effects to the environment.
There are already 53 substances on the Candidate List. Inclusion on the list imposes new information requirements on suppliers of preparations and articles containing the substances.