This time, we'll create a long-lasting phosphor based on barium sulfide. We'll use copper ions, specifically copper sulfate, as an activator. The result is a phosphor that glows yellow under ultraviolet light and has an orange afterglow. Unfortunately, this experiment can't be repeated at home.
Subscribe to our channel: http://bit.ly/2anP39z
The latest phosphors:
Boric acid phosphors: • Люминофоры из борной кислоты
Citric acid-urea alloy phosphor: • Люминофор из лимонной кислоты и карбамида
_____________
Our VK group: http://vk.com/crystalchemistry
Album for your crystals: http://vk.com/album-123900595_233184000
_____________
You can support our channel (by purchasing reagents):
Yandex.Money: https://money.yandex.ru/to/4100136397...
Webmoney ($): Z146358725326
Webmoney (Rub): R277189333480