On the 2nd of January 2013 the Canada Government issued the Prohibition of Certain Toxic Substances Regulations, 2012. Diphenylamine with styrene and methyl pentene TRIMETHYLPENTYL alkylation reaction product of diphenylamine (BNST) and products containing BNST were added to the regulations. The 2012 prohibited toxic substances regulations under the Canada Environmental Protection Act regulations prohibit the production, import, use, sale and products containing BNST (a few products and uses are permitted as exemptions), the regulations came into force on the 14th of March 2013. Among them, BNST in lubricants the grace period which expired on the 14th of March 2015. BNST is diphenylamine with styrene and methyl pentene TRIMETHYLPENTYL alkylation reaction product of diphenylamine, UVCB substances are composed by a variety of reaction products, the following is a typical structure of two kinds of reaction products. Used as antioxidant for automotive engine oils and lubricants for industrial, commercial, small amounts are also used for industrial equipment, machinery, and rubber in car tyres.
|Name of substance||CAS Number||Regulatory mandate||Exemption applications|
|BNST Alkylation of diphenylamine||68921-45-9||A ban on the production, import, use, sale of BNST and BNST products.||• Rubber products containing BNST (except rubber tires)•For personal use of products containing BNST • Lubricant in the BNST (exemption expiry date 2015.3.14)|