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  2. Nitrogen generator - Wikipedia

    en.wikipedia.org/wiki/Nitrogen_generator

    Analytical chemistry: Nitrogen generators are required for various forms of analytical chemistry such as liquid chromatography–mass spectrometry and gas chromatography where a stable and continuous supply of nitrogen is necessary. Aircraft & motor vehicle tires: Although air is 78% nitrogen, most aircraft tires are filled with pure nitrogen.

  3. List of PDF software - Wikipedia

    en.wikipedia.org/wiki/List_of_PDF_software

    LibreOffice. Free ( Mozilla Public License) an Office suite; allows to export (and import, with accuracy limitations) PDF files. Microsoft Word 2013. Proprietary. Desktop software. The 2013 edition of Office allows PDF files to be converted into a format that can be edited. Nitro PDF Reader.

  4. Nitrilotriacetic acid - Wikipedia

    en.wikipedia.org/wiki/Nitrilotriacetic_acid

    Nitrilotriacetic acid. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). ?) Nitrilotriacetic acid (NTA) is the aminopolycarboxylic acid with the formula N (CH 2 CO 2 H) 3. It is a colourless solid. Its conjugate base nitrilotriacetate is used as a chelating agent for Ca 2+, Co 2 ...

  5. Nitrogen - Wikipedia

    en.wikipedia.org/wiki/Nitrogen

    Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the element bond to form N 2, a colorless and odorless diatomic gas.

  6. New World Order (professional wrestling) - Wikipedia

    en.wikipedia.org/wiki/New_World_Order...

    member (s) Scott Hall. Debut. July 7, 1996 [ 1] Years active. 1996–2000. 2002. 2014–present (reunions) The New World Order (commonly abbreviated as nWo) was an American professional wrestling group that originally consisted of "Hollywood" Hulk Hogan, Scott Hall, and Kevin Nash.

  7. Free-piston engine - Wikipedia

    en.wikipedia.org/wiki/Free-piston_engine

    Free-piston engine used as a gas generator to drive a turbine. A free-piston engine is a linear, 'crankless' internal combustion engine, in which the piston motion is not controlled by a crankshaft but determined by the interaction of forces from the combustion chamber gases, a rebound device (e.g., a piston in a closed cylinder) and a load device (e.g. a gas compressor or a linear alternator).

  8. Birkeland–Eyde process - Wikipedia

    en.wikipedia.org/wiki/Birkeland–Eyde_process

    Birkeland–Eyde process. The Birkeland–Eyde process was one of the competing industrial processes in the beginning of nitrogen-based fertilizer production. It is a multi-step nitrogen fixation reaction that uses electrical arcs to react atmospheric nitrogen (N 2) with oxygen (O 2 ), ultimately producing nitric acid (HNO 3) with water. [ 1]

  9. Nitrogen dioxide - Wikipedia

    en.wikipedia.org/wiki/Nitrogen_dioxide

    Nitrogen dioxide is a chemical compound with the formula NO2. One of several nitrogen oxides, nitrogen dioxide is a reddish-brown gas. It is a paramagnetic, bent molecule with C 2v point group symmetry. Industrially, NO2 is an intermediate in the synthesis of nitric acid, millions of tons of which are produced each year, primarily for the ...