Is glow in the dark shirt radioactive?

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Discussion Overview

The discussion revolves around the safety of glow-in-the-dark shirts, specifically questioning whether they contain radium ink, which is known to be radioactive. Participants explore the historical use of radium in consumer products and express concerns about potential health risks associated with radioactive materials.

Discussion Character

  • Debate/contested
  • Exploratory
  • Technical explanation

Main Points Raised

  • Some participants inquire whether glow-in-the-dark shirts are made with radium ink, questioning the safety of such materials.
  • Concerns are raised about the health risks of radium exposure, including cancer and other disorders, citing historical context from the Manhattan Project.
  • One participant notes that radium was used in glow-in-the-dark watches but wonders if it is still used in modern inks, comparing costs between radium and phosphorous inks.
  • Another participant asserts that radium watch dials were banned due to their dangers and claims that radium is not found in consumer clothing products.
  • There is speculation about the possibility of illegal manufacturing of radium ink, particularly if it is cheaper than phosphorous ink, with anecdotal evidence regarding a friend's experience with a glow-in-the-dark shirt that glows continuously.
  • A participant references the historical context of Marie Curie's work with radioactive materials and the health risks associated with long-term exposure, noting that companies have stopped using radium ink due to toxicity concerns.
  • Some participants express skepticism about the complete absence of radium in products today, suggesting that lax regulations in some countries might allow for its continued use.

Areas of Agreement / Disagreement

Participants do not reach a consensus on whether glow-in-the-dark shirts contain radium ink. While some assert that radium is no longer used in consumer products, others express uncertainty and raise concerns about illegal manufacturing practices.

Contextual Notes

Participants reference historical practices and health risks associated with radium, but there is no definitive evidence provided regarding the current use of radium in glow-in-the-dark inks. The discussion includes assumptions about safety regulations and manufacturing practices in different regions.

chirhone
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You have seen shirts with figures or drawings that glow in the dark at night. Is it composed of radium ink?

Are there radium ink being used now or are all glow in the dark ink safe?
 
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What do you think?

https://en.wikipedia.org/wiki/Radium#Hazards said:
Exposure to radium, internal or external, can cause cancer and other disorders, because radium and radon emit alpha and gamma rays upon their decay, which kill and mutate cells. At the time of the Manhattan Project in 1944, the "tolerance dose" for workers was set at 0.1 micrograms of ingested radium.
 
anorlunda said:
What do you think?

I don't have geiger counter. Radiums were used in glow in the dark watches dials. I just wonder if they are also being used in glow in the dark ink or shirt. Are radium ink cheaper than phosphurous ink?
 
Radium watch dials were banned because they were dangerous.

You will not find radium in consumer products like clothes.
 
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anorlunda said:
Radium watch dials were banned because they were dangerous.

You will not find radium in consumer products like clothes.

But if radium waste is somehow cheaper than phosphurs. Radium ink can be illegally manufactured. My friend wears glow in the dark shirt when sleeping. He said the light doesn't vanish even the whole night. Perpetual glow can only happen if the ink has radioactive sources.
 
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Okay - you have answer - no. If you want to make up something for your own hard to understand reasons. Fine, please just do not do it on PF. Thread closed.
 
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Radium is highly toxic. Madam Curie died from longtime exposure to radioactive elements while doing her fundamental research on their properties.

https://en.wikipedia.org/wiki/Marie_Curie

Death
170px-Sklodowska-Curie_statue%2C_Warsaw.jpg

1935 statue, facing the Radium Institute, Warsaw
Curie visited Poland for the last time in early 1934.[16][72] A few months later, on 4 July 1934, she died at the Sancellemoz sanatorium in Passy, Haute-Savoie, from aplastic anaemia believed to have been contracted from her long-term exposure to radiation.[49][73]

The damaging effects of ionising radiation were not known at the time of her work, which had been carried out without the safety measures later developed.[72] She had carried test tubes containing radioactive isotopes in her pocket,[74] and she stored them in her desk drawer, remarking on the faint light that the substances gave off in the dark.[75] Curie was also exposed to X-rays from unshielded equipment while serving as a radiologist in field hospitals during the war.[58] Although her many decades of exposure to radiation caused chronic illnesses (including near-blindness due to cataracts) and ultimately her death, she never really acknowledged the health risks of radiation exposure.[76]

Companies in many parts of the world stopped using radium ink for clothing and radium painted clock dials because of the toxicity to the wearers and more so the workers.

https://www.cnn.com/style/article/radium-girls-radioactive-paint/index.html

https://www.voanews.com/usa/watchs-deadly-glow-recalls-worker-tragedy-triumph

However, I wouldn't be surprised if there are still some products manufactured today that use radium in third world countries because of lax health and safety laws. I couldn't find any hard references online though.
 
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