Synthetic Fluorescent Mineral Experiment/Art: Partiyte_4 - PHOS

 

From the basement lab comes this 4" wide specimen.

 

On an aluminum tray containing a bed of salt + drops of a sodium silicate solution, ZnS:Cu, CaS:Mn,Pb and SrS:Pb were spread in a thin layer. The ZnS (zinc sulfide) was placed around the perimenter, the SrS (strontium sulfide) and the CaS (calcium sulfide) were placed randomly in the center. Drops of a zinc chloride solution were placed around the edges. Lead filings from a fishing sinker were placed on the SrS and CaS zones and the sample was then well heated with a MAPP torch until all of the salt had melted.

 

The ZnS precipitate (prior to heating) consisted of zinc chloride, magnesium sulfate and malachite combined in a sodium carbonate solution, filtered and dried. The position of the zinc chloride solution drops seem to correspond to the brightest green fluorescence.

 

ZnS:NaCl (1;1), SrS:NaCl (1:1), CaS:NaCl (1:2) | XCO3(1) + S(1) + NaCl(n)

 

Contains:

SrS (FL+PHOS!! White/Yellow/Greenish yellow >UVa,bc)

CaS (FL+PHOS Orange >UVabc)

ZnS (FL+PHOS Green/Orange/Blue >UVabc)

 

Shown in phosphorescent state after exposure to UVabc light.

 

Key:

WL = White light (halogen + LED)

FL = Fluoresces

PHOS = Phosphorescent

Blue = 450nm,

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

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

 

Partiyte_4

6Jul2015

 

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

Done