Heavy Water: Is It Legal To Buy?

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Discussion Overview

The discussion revolves around the legality and safety of purchasing heavy water (deuterium oxide) for civilian use. Participants explore regulatory aspects, potential toxicity, and the implications of deuterium in biological processes.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • Some participants question the legality of civilians buying heavy water, suggesting it may be regulated.
  • Others express uncertainty, proposing that heavy water might primarily be available for scientific use by institutions or educators.
  • One participant notes that deuterium is a stable component of water and argues that there should be no restrictions on its sale, while highlighting that tritium, another isotope, is more regulated.
  • There is a query about the safety of drinking deuterium oxide, with some participants asserting it is safe and chemically similar to regular water.
  • Another participant raises concerns about the slight toxicity of deuterium oxide due to its chemical properties, suggesting that it could affect metabolic processes, although significant quantities would be required to pose a danger.
  • One participant mentions that while heavy water is commonly used in science labs, there may be restrictions on its export due to its potential applications in nuclear programs.

Areas of Agreement / Disagreement

Participants express differing views on the legality of owning heavy water and its safety for consumption. There is no consensus on the extent of regulation or the potential toxicity of deuterium oxide.

Contextual Notes

Participants reference varying assumptions about the chemical behavior of deuterium and its effects on biological systems, as well as the regulatory landscape surrounding heavy water. Some claims about toxicity and legality remain unresolved.

rasperas
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I recently noticed this on one of my favorite sites (http://www.unitednuclear.com/supplies.htm)- They are selling heavy water to civilains-- is that stuff legal to buy, I thought it was heavily regulated?
 
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Wow that site is awsome! There are so many cool things on there. I don't know about heavy watter i agree with you i think there are some laws on civilians owning heavy watter. Maybe its only for things like scientists at schools or science teachers. But you thanks for posting that site its awsome!
 
Deuterium is a stable component of normal water. No reason to restrict its sale. Tritium (the other hydrogen isotope/ type of heavy water) on the other hand...no.
 
dumb question: is deuterium oxide safe to drink?
 
Yes, it is. Chemically it's identical to water and is not radioactive.
 
Deuterium oxide is in fact very slightly toxic due to the fact that deuterium is not completely chemically identical to normal hydrogen. It tends to form slighly stronger covalent bonds than normal hydrogen, meaning that many reactions involving deuterium will take place slower than their normal hydrogen equivalents. This can have a detrimental effect on metabolic processes. That said, you'd have to drink a lot of D2O to be in any danger.
 
I don't know about the legality of owning heavy water, but as its used quite a bit in science labs I wouldn't have thought there were that many restrictions. Export of D20 is restricted because of its potential use in nuclear programs.

I've always assumed that the reactions in the body are delicately balanced, so D20 would be fairly toxic. However a google search brought up the following:
http://ajplegacy.physiology.org/cgi/content/abstract/201/2/357
suggesting that the toxic limit is higher than I thought.
 
Well, you learn something new every day.
 

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