Identification: BIS (2,4,4-TRIMETHYLPENTYL) PHOSPHINIC ACID CAS: 83411 – 71 – 6 Available in: Asia Pacific, Europe, Latin America and North America Applications: IONQUEST® 290 is an excellent extractant for separating cobalt from nickel. It will also extract other cations such as aluminum, copper and zinc. Information provided by Rhodia, Rhodia has been acquired by Solvay. |