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Hydrogen — This article is about the chemistry of hydrogen. For the physics of atomic hydrogen, see Hydrogen atom. For other meanings, see Hydrogen (disambiguation). ← hydrogen → helium … Wikipedia
Oxygen — This article is about the chemical element and its most stable form, O2 or dioxygen. For other forms of this element, see Allotropes of oxygen. For other uses, see Oxygen (disambiguation). nitrogen ← oxygen → fluorine ↑ O ↓ … Wikipedia
Unsung Heroes (film) — Unsung Heroes Charles Robert Jenkins as Dr. Kelton, the fictional mastermind behind the Korean War Chosŏn gŭl 이름 없는 영웅들 … Wikipedia
Argon — This article pertains to the chemical element. For other uses, see Argon (disambiguation). Argon (pronEng|ˈɑrgɒn) is a chemical element designated by the symbol Ar. Argon has atomic number 18 and is the third element in group 18 of the periodic… … Wikipedia
Dry ice — Sublimation of dry ice when placed on the surface of water at room temperature Dry ice, sometimes referred to as Cardice or as card ice , is the solid form of carbon dioxide. It is used primarily as a cooling agent. Its advantages include lower… … Wikipedia
Breathing gas — is a mixture of gaseous chemical elements and compounds used for respiration. Air is the most common and only natural breathing gas. Other artificial gases, either pure gases or mixtures of gases, are used in breathing equipment and enclosed… … Wikipedia
Psychrometrics — or psychrometry are terms used to describe the field of engineering concerned with the determination of physical and thermodynamic properties of gas vapor mixtures. The term derives from the Greek psuchron (ψυχρόν) (… … Wikipedia
Pressure swing adsorption — (PSA) is a technology used to separate some gas species from a mixture of gases under pressure according to the species molecular characteristics and affinity for an adsorbent material. It operates at near ambient temperatures and so differs from … Wikipedia
Tank blanketing — Tank blanketing, also referred to as tank padding, is the process of applying a gas to the empty space in a storage container. The term storage container here refers to any container that is used to store products, regardless of its size. Though… … Wikipedia
Krypton — infobox kryptonKrypton (pronEng|ˈkrɪptən or IPA|/ˈkrɪptɒn/; from el. kryptos hidden ) is a chemical element with the symbol Kr and atomic number 36. It is a member of Group 18 and Period 4. A colorless, odorless, tasteless noble gas, krypton… … Wikipedia
