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  2. Potassium nitrate - Wikipedia

    en.wikipedia.org/wiki/Potassium_nitrate

    It is a potassium salt of nitric acid. This salt consists of potassium cations K + and nitrate anions NO − 3, and is therefore an alkali metal nitrate. It occurs in nature as a mineral, niter (or nitre outside the US). [5] It is a source of nitrogen, and nitrogen was named after niter.

  3. Sodium fusion test - Wikipedia

    en.wikipedia.org/wiki/Sodium_fusion_test

    The sodium fusion extract is made alkaline by adding NaOH. To this mixture, freshly prepared FeSO 4 solution is added and boiled for some time and then cooled. A few drops of FeCl 3 are added and Prussian blue (bluish green) color forms due to formation of ferric ferrocyanide along with NaCl. This shows the presence of nitrogen in the organic ...

  4. Your Guide to Nitrogen for Tires - AOL

    www.aol.com/news/guide-nitrogen-tires-090000080.html

    This guide will explain the pros and cons of putting nitrogen in your tires. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways ...

  5. Nitrogen - Wikipedia

    en.wikipedia.org/wiki/Nitrogen

    Nitrogen is a chemical element; it has symbol N and atomic number 7. 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.

  6. Nitrogen compounds - Wikipedia

    en.wikipedia.org/wiki/Nitrogen_compounds

    Fuming nitric acid contaminated with yellow nitrogen dioxide Nitric acid (HNO 3 ) is by far the most important and the most stable of the nitrogen oxoacids. It is one of the three most used acids (the other two being sulfuric acid and hydrochloric acid ) and was first discovered by the alchemists in the 13th century.

  7. Natron - Wikipedia

    en.wikipedia.org/wiki/Natron

    The name of the chemical element Nitrogen is also a cognate to natron, it derives from Greek nitron and -gen (a producer of something, in this case Nitric acid, which was produced from niter (potassium nitrate)). Niter was also an obsolete name for natron because in earlier times, both minerals used to be confused with each other.

  8. Aircraft tire - Wikipedia

    en.wikipedia.org/wiki/Aircraft_tire

    Changing a wheel on a Lockheed P-3 Orion aircraft Tires on the wheels of a bogie on a Boeing 777. An aircraft tire or tyre is designed to withstand extremely heavy loads for short durations. [1] The number of tires required for aircraft increases with the weight of the aircraft, as the weight of the airplane needs to be distributed more evenly.

  9. Liquid nitrogen - Wikipedia

    en.wikipedia.org/wiki/Liquid_nitrogen

    Liquid nitrogen is a compact and readily transported source of dry nitrogen gas, as it does not require pressurization. Further, its ability to maintain temperatures far below the freezing point of water, specific heat of 1040 J ⋅kg −1 ⋅K −1 and heat of vaporization of 200 kJ⋅kg −1 makes it extremely useful in a wide range of ...