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Answers to Readers' Questions on Chemistry:
Uses of Nitrogen
The following 4 comments and questions have been sent in. They are listed according to date.
List of first 10 items
- Could nitrogen be used to stop oil leak?
- Why did my doctor spray my leg with nitrogen?
- Does excess Nitrogen affect the weather?
- Other uses of nitrogen
Could nitrogen be used to stop oil leak?
Question
May 3, 2010
would it be possible to pipe it 5,000ft below sealevel in the gulf where the oil spill is originating?,and what effects would the crude have on it?. thank you
gary - USA
19660
Answer
Although nitrogen gas could be piped down to the source of the oil leak, it really wouldn't do anything. However, sending liquid nitrogen down there might temporarily freeze the water around the oil and also make the oil very thick. That could stop the oil from coming to the surface.
It is an interesting idea, but it probably is not practical. One thing they have tried on other leaks is to force concrete into the hole to plug it up.
Why did my doctor spray my leg with nitrogen?
Question
April 27, 2010
why did my doctor spray my leg with nitrogen where i have skin cancer
mary - UK
19619
Answer
Liquid nitrogen can quickly freeze spots on the skin. It is often used as a painless way to get rid of moles, as well as to scrape off suspected cancerous material on the skin.
Best wishes on curing your skin cancer.
Does excess Nitrogen affect the weather?
Question
October 1, 2009
Makeing all of this extra Nitrogen on earth, along with all of the microwaves of mobile phones, do you think this maybe over loading the atmosphear?, and upsetting the weather?
Gayle - Australia
18415
Answer
Extra Nitrogen mainly comes from overuse of fertilizer. Although Nitrogen is very stable, excess can disrupt the ecosystems and how things grow.
Microwaves going to and coming from mobile phones does not affect the atmosphere. However, some worry if it can can harmful to users of those phones.
Concerning upsetting the weather, see:
http://www.school-for-champions.com/science/infrared_greenhouse_effect.htm
Other uses of nitrogen
Question
February 13, 2009
I have a research paper do on monday and I need some ideas for some uses of nitrogen that are easy to draw. So far i have fertilizer, the air we breath, and ammonia used for cleaning.
noah - USA
17264
Answer
Some uses include: nitrous oxide (laughing gas used in dentistry), urea (NH2CONH2 used as a fertilizer, in making plastic and as a cattle food supplement), cyanide (used in medicine), and amino acids (found in all forms of life).
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