Luminescence Alchemy: Calcium Sulfide "Bubbly Pup" - UVc

 

FOV: 2.75" wide.

 

Calcium sulfide made by heating rockshop calcite with hardware store sulfur in molten salt. Manganese and lead were added as activators.

 

I believe the bubbles in the salt were formed by carbon dioxide gas being produced by the calcination of the calcium carbonate. In the molten state the bubbles glowed a bright bluish white similar in color to the incandescence produced by heating calcium oxide into candoluminescence (aka "limelight").

 

Contains:

CaS:Mn2+,Pb2+ (FL+PHOS Orange,pink >UVabc!)

 

Shown under UVc light.

 

Key:

WL = White light (halogen + LED)

FL = Fluoresces

PHOS = Phosporescent

UVa = 368nm (LW), UVb = 311nm (MW), UVc = 254nm (SW)

'>' = "stimulated by:", '!' = "bright", '~' = "dim"

 

Series best viewed in Light Box mode using Right and Left arrows to navigate.

Photostream best viewed in Slideshow mode (in the dark).

 

18 Watt Triple Output UV lamp from Polman Minerals - Way Too Cool UV lamps

 

...\FL min Experiments\Group II Sulfides\CaS salt w hrdwr S

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