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Nitrogen trifluoride

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Chemical formula: NF₃
(1 nitrogen atom and 3 fluorine atoms)
Molecular weight: 71 g/mol

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Nitrogen trifluoride, or NF₃ consists of one nitrogen atom linked to three fluorine atoms arranged in a pyramid. There are three bond pairs in NF₃.The shape of NF₃ is trigonal pyramidal.

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Nitrogen trifluoride, NF₃, is a colorless gas. It has a musty, pungent odor. It is slightly soluble in water. It is polar because the molecule forms a pyramidal shape. It melts at − 129 °C and boils at − 206 °C. It can be a potent oxidizer at an elevated temperature. Nitrogen trifluoride is an extremely strong greenhouse gas.

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Nitrogen trifluoride is nonflammable and is a base. It is non-corrosive gas to steel, stainless steel and nickel. NF3  is a thermally-sensitive reactant, meaning that it will react with different compounds at different temperatures. It is toxic by inhalation and corrosive to tissue.

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Use of NF₃ began in the 1960s and 1970s in specialty applications. For example, it was used as a rocket fuel oxidizer and as a fluorine donor for chemical lasers. More recently, NF₃ has grown rapidly in the manufacture of modern electronic devices. It has been used by in the semiconductor, computer chips, photovoltaic cell, and flat-panel display devices. It is also used in certain types of solar panels and chemical lasers. When nitrogen trifluoride is being used, some of it will always escape into the atmosphere.

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NF₃ one of the most potent greenhouse gases known and persists in the atmosphere for 740 years. Once released into the atmosphere, this gas circulates from the surface to the stratosphere hundreds of times before it is destroyed by solar ultraviolet radiation.

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Nitrogen trifluoride can react violently with hydrogen, ammonia, carbon monoxide, diborane, hydrogen sulfide, methane, tetrafluorohydrazine, and charcoal. It can have an explosive reaction with chlorine dioxide.

-It oxidizes hydrogen chloride to chlorine:
2 NF₃ + 6 HCl → 6 HF + N₂ + 3 Cl₂

-It converts tetrafluorohydrazine upon contact with metals, but only at high temperatures:
2 NF₃ + Cu → N₂F₄ + CuF₂

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The amount of Nitrogen Trifluoride in the atmosphere has greatly increased overtime. In 1992, less than 100 tons were produced. The largest increase in the growth rate occurred between 2000 and 2006, when there was a significant relative rise in NF₃ production and use. Now production has grown to an estimated 4,000 tons and is projected to increase significantly. Nitrogen trifluoride is now present in the atmosphere at four times the expected amount, and the atmospheric concentrations of NF₃ are rising with a rate of increase of about 11% per year.
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Nitrogen trifluoride is now present in the atmosphere at four times the expected level and this level is rapidly rising. This is a major problem for our atmosphere because NF₃ is one of the most powerful greenhouse gases. It has a high global warming potential, and will trap heat in the atmosphere for 740 years! We need to draw more attention to this greenhouse gas because it is continuing to be produced at a very high rate due to the rapid growth of electronic devices. If this harmful gas continues to be emitted at this rate, it will greatly increase global warming, which will heat up the Earth's surface, warm our oceans, and have very negative effects on our environment.

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https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2008GL035913

https://ww2.arb.ca.gov/ghg-gwps

https://e360.yale.edu/features/the_greenhouse_gasthat_nobody_knew

https://www.sciencedirect.com/topics/chemistry/nitrogen-trifluoride

https://pubchem.ncbi.nlm.nih.gov/compound/Nitrogen-trifluoride#section=Structures

https://www.youtube.com/watch?v=sTvqIijqvTg&feature=youtu.be

https://padlet-uploads.storage.googleapis.com/211703266/e8958ce377a8ec9c6cb263819ec3d6d7/lib_nasa_blanket_around_earth_22429_article_only.pdf

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The Global Warming Potential (GWP) was developed to allow comparisons of the global warming impacts of different gases. It is a measure of how much energy the emissions of 1 ton of a gas will absorb over a given period of time (usually 100 years), relative to the emissions of 1 ton of carbon dioxide. Nitrogen trifluoride has a global warming potential of about 17,200. This means that it is 17,200 times more powerful than carbon dioxide in trapping atmospheric heat over a 100-year time span. This is much higher than most other greenhouse gases.