Dover Chemical Corp. (Dover, OH) released the following statement today regarding the identification of Tris(4-nonylphenyl) phosphite (TNPP) with ≥ 0.1% of 4-nonylphenol, branched and linear (4-NP), as a substance of very high concern (SVHC).
In December 2017, the TNPP SIEF [Substance Information Exchange Forum] members met with ANSES [the French agency for food, environmental and occupational health safety] in Paris, at which time they were very clear with their position and intent relative to TNPP. At that time, they stated any TNPP containing ≥ 0.1% of 4-nonylphenol, branched and linear, would be considered as meeting article 57f (i.e., SVHC) criteria due to 4-NP being considered an endocrine disruptor.
On October 31, 2018, [the European Chemicals Agency] ECHA updated its website outlining the intention to include TNPP products containing ≥ 0.1% w/w of 4-NP to be identified as an SVHC.
Dover Chemical Corp., as a major supplier of TNPP, is obliged to inform the plastics market of this upcoming potential status change. However, it is very important to note that there is still a TNPP product available for use today that does not contain ≥ 0.1% w/w 4-NP: Dover Chemical Corp.’s Doverphos HIPURE 4 and HIPURE 4 HR. By specification, this commercial product does not contain 4-NP at a level > 0.1% w/w, and, therefore, would not qualify as an SVHC within the current intention. Doverphos HIPURE 4 and HIPURE 4 HR have always been recognized as the industry standard in high-purity TNPP.
Dover Chemical is a subsidiary of New York–based ICC Industries Inc., a global leader in the manufacturing, marketing and trading of chemical, plastic and pharmaceutical products.
Dover Chemical produces polymer additives, liquid and solid chlorinated paraffins, liquid and solid antioxidants, flame retardants and additives for water-based or oil-based coatings, and metalworking and drilling fluids.