Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers



Uranium Glass

Status
Not open for further replies.

paul1598419

Well-known member
Joined
Sep 20, 2013
Messages
15,219
Points
113
There were parts of that pdf that were unreadable. Especially the graphs. It looked like it was either old or not well documented, so I didn't take it into account at all. Couldn't make sense out of large sections.
 



Encap

Well-known member
Joined
May 14, 2011
Messages
4,780
Points
113
Nice find, do I understand correctly that vaseline glass is U:phosphate uranium doped glass?
You may find some help from results of work done here L O S A L A M O S N A T I O N A L L A B O R A T O R Y Operated by the University of California for the US Department of Energy

"The historical importance of uranyl fluorescence is not only artistic, but also scientific as well. The Canary-glass objects popular in the 19th century attracted the interest of the Scottish scholar Sir David Brewster, who mentioned the first scientific observation of visually appealing green fluorescence of uranium-containing glass in 1849. The term for this fundamental phenomenon, fluorescence, was later introduced by Sir George Gabriel Stokes in 1852 in his paper titled "The Change in the Refrangibility (wavelength) of Light." In this historic work, he described fluorescence from uranium oxide analytes.

"The intervals between the absorption bands of green uranite were nearly equal to the intervals between the bright bands of which the derived spectrum consisted in the case of yellow uranite. After having seen both systems, I could not fail to be impressed with the conviction of a most intimate connexion [sic] between the causes of the two phenomena, unconnected as at first sight they might appear. The more I examined the compounds of uranium, the more this conviction was strengthened in my mind."

This work contributed to the rule that emitted light is always of longer wavelength than that of the exciting light, a principle that is now called Stokes' Law. In modern years, fluorescence from compounds containing uranyl ions has attracted widespread attention as a tool for understanding the complex electronic structure of actinide molecules, characterizing speciation of uranium materials, and detecting the presence of uranium. Although investigations of fluorescence from other actinide species are not as extensive, reports from Russian scientists suggest that fluorescence from neptunium analytes is quite sensitive. However, the molecular composition of their neptunium samples is unknown.

Researchers at Los Alamos have discovered the first example of fluorescence from an actinyl species other than uranyl. A team led by Marianne Wilkerson and Harry Dewey of the Chemistry Division and John Berg of the Nuclear Materials Technology Division has established a capability at the Integrated Spectroscopy Laboratory to detect near-infrared photons emitted by actinide compounds following visible laser excitation. The spectra arise from a 5f-5f transition, opening up the ability to explore the electronic structure of actinide compounds in the near-infrared region of the electromagnetic spectrum by using sensitive and selective spectroscopic capabilities. This research is part of a Basic Energy Sciences (DOE BES) program to investigate chemical behavior of heavy elements." ~ see entire article here: http://www.lanl.gov/orgs/nmt/nmtdo/AQarchive/04spring/newclass.html


:can:
 
Last edited:

Encap

Well-known member
Joined
May 14, 2011
Messages
4,780
Points
113
Uranium Dioxide was added to molten glass to make the colour yellow green.

;)
100% correct Seoul_lasers

Heavy-element chemistry at Los Alamos

"The fluorescence observed following the interaction of light with actinide oxide species has fascinated people for millennia, in large part because of its visually striking effect. An artifact of yellow-colored, uranium-doped glass was found near Naples, Italy, and determined to have been made in 79 A.D. Early 19th century European glassmakers added small amounts of uranium to their glass formulations as a coloring agent to make Canary-glass objects in which the appearance is clearly enhanced by the characteristic yellow-green fluorescence. As recently as the late 1930s, uranium oxides were added to the glazes employed to decorate the brilliant red dinnerware developed by Fiestaware. Although the production of uranium glass in the United States was halted in 1942, the marvelous colors of these uranium-containing objets d’art continue to appeal to enthusiasts today"

See interesting Los Alamos take on the subject here: The Actinide Research Quarterly: 1st Quarter 2004
 
Last edited:

Alaskan

Well-known member
LPF Site Supporter
Joined
Jan 29, 2014
Messages
11,120
Points
113
There must have been a whole lot of this glass made for so much of it to remain today, fairly cheap on ebay, considering.
 

paul1598419

Well-known member
Joined
Sep 20, 2013
Messages
15,219
Points
113
You could be right. These U glass marbles have been available to anyone for years. I can't say when they were made, but they weren't expensive at all. It makes it hard to believe that it was all made prior to the 1960s or even earlier.
 

Cyparagon

Well-known member
Joined
Sep 12, 2007
Messages
9,646
Points
113
It makes it hard to believe that it was all made prior to the 1960s or even earlier.
I DON'T believe that. The notion that china is selling antiques for 10 cents is absurd. But I'll change my mind if I see a source. It is more likely they are either still producing the glass, or they are using a different fluorescent material.
 

Alaskan

Well-known member
LPF Site Supporter
Joined
Jan 29, 2014
Messages
11,120
Points
113
Well... he did say it makes it hard to believe, you don't either.
 

lucky43113

New member
Joined
May 21, 2018
Messages
2
Points
0
i collect uranium glass and the stuff out of china has very little glow to it, also it was still in production in the USA up until may of 2017 by mosser glass in ohio i have a few pieces of it.
 

paul1598419

Well-known member
Joined
Sep 20, 2013
Messages
15,219
Points
113
This thread is nearly a year old. Please don't post to old threads without posting significantly new information about the subject. That is called necroposting around here and it is highly frowned on. These old thread are here to read, not post to.
 
Last edited:

Alaskan

Well-known member
LPF Site Supporter
Joined
Jan 29, 2014
Messages
11,120
Points
113
You will have more acceptance posting stuff to old threads once people get to know you, been around awhile :) - We have trolls who come here quite frequently with no history or previous posts under their belts just digging up old threads to annoy members.
 
Status
Not open for further replies.




Top