The European Chemical Agency (ECHA) has launched its second public consultation of 2021, covering four potential substances of very high concern (SVHC).
The four SVHC under consultation are:
- (±)-1,7,7-Trimethyl-3-[(4-methylphenyl)methylene]bicyclo[2.2.1]heptan-2-one covering any of the individual isomers and/or combinations thereof (4-methylbenzylidene camphor, 4-MBC)
- 6,6'-Di-tert-butyl-2,2'-methylenedi-p-cresol (DBMC)
- S-(Tricyclo[5.2.1.0'2,6]deca-3-en-8(or 9)-yl) O-(isopropyl or isobutyl or 2-ethylhexyl) O-(isopropyl or isobutyl or 2-ethylhexyl) phosphorodithioate
- Tris(2-methoxyethoxy)vinylsilane
Tris(2-methoxyethoxy)vinylsilane rapidly hydrolyses when in contact with water or air moisture, thereby releasing 2-methoxyethanol, which was added to the Candidate list as an SVHC in 2010.
These four substances have a variety of uses. Substance 1 is classified as endocrine disrupting and is used as a UV filter in cosmetic products. Substance 2 is used in the production of rubber and non-rubber polymers, tires, adhesives, inks and lubricants. Substance 2 is classified as persistent, bioaccummulative and toxic and is used in lubricants and greases. Finally, substance 4 is used in the manufacture of rubber and plastic, in sealants and as a monomer in the production of silicone polymers and silicone resins. Both substances 2 and 4 are classified as toxic to reproduction, category 1B.
If these substances are accepted following the consultation, the Candidate List will expand to 223.
The consultation was launched on September 3, 2021, and interested parties have until October 18, 2021, to comment.
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