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It is also used as a green phosphor in projection CRTs, though its drawback is marked lowering of efficiency at higher temperatures. Variants include, for example, using praseodymium instead of terbium ( CAS registry number 68609-42-7 , EINECS number 271-826-9), or using a mixture of dysprosium and terbium for doping (CAS number 68609-40-5 ...
Between 1913 and 1950 radium-228 and radium-226 were used to activate a phosphor made of silver doped zinc sulfide (ZnS:Ag), which gave a greenish glow. The phosphor is not suitable to be used in layers thicker than 25 mg/cm 2, as the self-absorption of the light then becomes a problem. Furthermore, zinc sulfide undergoes degradation of its ...
It gave rise to derivative products which have diverged from the original composition. Today, Calgon water softener contains the active ingredient sodium citrate, [2] and the now discontinued powder used zeolite and polycarboxylate, all of which are less problematic in wastewater treatment than phosphates.
The third book in the Yarros’ “Empyrean” series comes out in January from Entangled Publishing. The follow-up to “Fourth Wing” and “Iron Flame” swaps Basgiath War College lessons for ...
Shoppers hit the Boxing Day 2024 sales at London’s Oxford Street on Thursday, despite reports of footfall being down across all UK destinations in comparison with 2023. Boxing Day footfall was ...
As the co-heads of the newly created Department of Government Efficiency, or DOGE, billionaires Elon Musk and Vivek Ramaswamy are promising to slash at least $2 trillion from the federal budget.
Potassium fluorosilicate is a chemical compound with the chemical formula K 2 [SiF 6].. When doped with potassium hexafluoromanganate(IV) (K 2 [MnF 6], with Mn 4+) it forms a narrow band red producing phosphor, (often abbreviated PSF or KSF), of economic interest due to its applicability in LED lighting and displays.
In this creamy radish soup recipe, radishes are sautéed and pureed with potato, creating a velvety, healthy soup. Cooking radishes also tones down any bitterness while leaving plenty of sweet ...