Appearance: Low viscosity liquid; characteristic odor C14H20O4 MW: 252.3 BP: >250°C / >482°F - Decomposes CAS #: 2386-87-0; 2611-00-9; others not available Specific gravity: 1.173
This is the "replacement" for the widely used ERL 4206, a component of the widely used SPI-Chem™ Ultra-Low Viscosity Kit but which is no longer produced and to our knowledge is not available anywhere in the world (so far as we know). If you should be aware of an actual manufacturer of the equivalent to ERL 4206, we would be greatly appreciative of knowing who is doing such manufacturing. However, our testing of ERL 4221, as a plug-in replacement for ERL 4206 would indicate that on a blind test, most users could not tell a difference so long as the recipe is suitably altered to account for differences in properties that do exist. For example, for the use of ERL 4221 as part of a Spurr formulation low viscosity kit, see the Spurr formulation low viscosity kit Use Instructions.
