Search results
Results From The WOW.Com Content Network
Europium compounds fluoresce under UV light at 395 nm and 365 nm. [1] Europium compounds are compounds formed by the lanthanide metal europium (Eu). In these compounds, europium generally exhibits the +3 oxidation state, such as EuCl 3, Eu(NO 3) 3 and Eu(CH 3 COO) 3. Compounds with europium in the +2 oxidation state are also known.
It is a dopant in some types of glass in lasers and other optoelectronic devices. Europium oxide (Eu 2 O 3) is widely used as a red phosphor in television sets and fluorescent lamps, and as an activator for yttrium-based phosphors. [51] [52] Color TV screens contain between 0.5 and 1 g of europium oxide. [53]
Europium(III) oxide (Eu 2 O 3), is a chemical compound of europium and oxygen. It is widely used as a red or blue phosphor in television sets and fluorescent lamps, and as an activator for yttrium-based phosphors. It is also an agent for the manufacture of fluorescent glass. Europium fluorescence is used in the anti-counterfeiting phosphors in ...
This article needs to be updated.The reason given is: the section related to E.U. needs further updates (esp. in sections 3.2 and 4.2.2) as the directives 93/42/EEC on medical devices and 90/385/EEC on active implantable medical devices have been fully repealed on 26 May 2021 by Regulation (EU) no. 2017/745 (MDR); furthermore, Brexit triggers updates in these sections (U.K. developed their own ...
Europium oxide is a compound from the two elements europium and oxygen. Europium oxide may refer to: Europium(II) oxide (europium monoxide, EuO) a magnetic semiconductor. Europium(III) oxide (europium sesquioxide, Eu 2 O 3), the most common oxide.
Eucomed was the organisation that represented the interests of the medical device industry in Europe. [1] It represents directly and indirectly 4,500 designers, manufacturers and suppliers of medical technology used in the diagnosis, prevention, treatment and management of disease and disability. [2]
Sample uses of technology-critical elements (excluding rare-earth) [12] Element Compound Applications Gallium (Ga) GaAs, GaN: Wafers for (a) integrated circuits in high-performance computers and telecommunications equipment and (b) LEDs, photodetectors, solar cells and medical equipment
The practice of reusing medical devices labeled for only one use began in hospitals in the late 1970s. [8] After a thorough review by the U.S. FDA in 1999 and 2000, [8] the agency released a guidance document for reprocessed SUDs that began regulating the sale of these reprocessed devices on the market, [9] under the condition that third-party reprocessors would be treated as the manufacturer ...