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Reusable and non-toxic glow stick made from strontium aluminate particles mixed with a settable material. The different colours are made from slightly different strontium aluminate formulas. Strontium aluminate based afterglow pigments are marketed under numerous brand names such as Core Glow, Super-LumiNova [ 12 ] and Lumibrite , developed by ...
Strontium aluminate is frequently used in glow in the dark toys, as it is chemically and biologically inert. [69] Strontium salts are added to fireworks in order to create red colors. Strontium carbonate and other strontium salts are added to fireworks to give a deep red colour. [70] This same effect identifies strontium cations in the flame test.
Radium dials were produced throughout most of the 20th century before being replaced by safer tritium-based luminous material in the 1970s and finally by non-toxic, non-radioactive strontium aluminate–based photoluminescent material from the middle 1990s.
Exposure to high levels of strontium may cause leukemia and cancers of the bone, nose, lung and skin, according to the Agency for Toxic Substances and Disease Registry, while high levels of radium ...
Phosphorescent pigments performance, in visible light, in dark, after 4 minutes in dark - zinc sulfide (left) and strontium aluminate (right) based materials Super-LumiNova is a brand name under which strontium aluminate –based non- radioactive and nontoxic photoluminescent or afterglow pigments for illuminating markings on watch dials ...
Strontium oxide aluminate based pigments are now used in exit signs, pathway marking, and other safety related signage. Strontium aluminate based afterglow pigments are marketed under brandnames like Super-LumiNova , [ 2 ] [ 3 ] Watchlume Co, [ 4 ] NoctiLumina, [ 5 ] and Glow in the Dark (Phosphorescent) Technologies.
One of the more common persistent after-glow phosphors besides copper-doped zinc sulfide is europium-doped strontium aluminate. [57] Europium fluorescence is used to interrogate biomolecular interactions in drug-discovery screens. It is also used in the anti-counterfeiting phosphors in euro banknotes. [58] [59]
Strontium aluminate based pigments are now used in exit signs, pathway marking, and other safety related signage. [ 22 ] Zinc sulfide (left) and strontium aluminate (right), in visible light, in darkness, and after 4 minutes in the dark.