What color are ytterbium oxide and erbium oxide?
The introduction to the knowledge and application of ytterbium oxide and erbium oxide Ytterbium oxide Also known as ytterbium dioxide, Yb2O3 is the chemical formula. It is a pure white powder. When it contains small amounts of thorium dioxide, it becomes yellowish brown. Water and cold acids are insoluble. Warm dilute acid is soluble. Erbium oxide This pink powder has the chemical composition Er2O3. This powder absorbs carbon dioxide and moisture easily. It melts well when heated up to 1