ECHA Launches SVHC Consultation Over Four Substances

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. (±)-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)
  2. 6,6′-Di-tert-butyl-2,2′-methylenedi-p-cresol (DBMC)
  3. S-(Tricyclo[’2,6]deca-3-en-8(or 9)-yl) O-(isopropyl or isobutyl
    or 2-ethylhexyl) O-(isopropyl or isobutyl or 2-ethylhexyl) phosphorodithioate
  4. Tris(2-methoxyethoxy)vinylsilane

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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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