Online College Courses for Credit

Erbium Catalysts

Erbium Catalysts

Author: murphy wu

Erbium is a lanthanide element and a rare earth element. Lanthanide salts are of great importance as lewis acids in green organic chemistry because of their stability and low to moderate toxicity, especially the erbium(III) salt, which is one of the most active lanthanoid(III) derivatives.

See More
Fast, Free College Credit

Developing Effective Teams

Let's Ride
*No strings attached. This college course is 100% free and is worth 1 semester credit.

37 Sophia partners guarantee credit transfer.

299 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 33 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.