Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Monomethylhydrazine> ?p ?o }
- Monomethylhydrazine abstract "Monomethylhydrazine (MMH) is a volatile hydrazine chemical with the chemical formula CH3 (NH)NH2. It is used as a rocket propellant in bipropellant rocket engines because it is hypergolic with various oxidizers such as nitrogen tetroxide (N2O4) and nitric acid (HNO3). As a propellant, it is described in specification MIL-PRF-27404.MMH is a hydrazine derivative used in the orbital maneuvering system (OMS) and reaction control system (RCS) engines of NASA's Space Shuttle, which used MMH and MON-3 (a mixture of nitrogen tetroxide with approximately 3% nitric oxide). This chemical is toxic and carcinogenic in small amounts, but it is easily stored in outer space providing moderate performance for very low fuel tank system weight. Recently the European Space Agency (ESA) has attempted to seek new options in terms of bipropellant rocket combinations to avoid poisonous chemicals such as this and its relatives.MMH and its chemical relative unsymmetrical dimethylhydrazine (UDMH) have a key advantage that they are stable enough to be used in regeneratively cooled rocket engines. The Apollo Lunar Modules used a one-to-one mixture of hydrazine and UDMH (called Aerozine 50, or A-50) as one part of the rocket fuel for lunar landings and takeoff: the rocket motors formed a hypergolic mixture of the hydrazines with liquid dinitrogen tetroxide as the usual oxidizer. (Otherwise, red fuming nitric acid works.) About three tons of mixed hydrazines and four and one half tons of the oxidizer were required for each landing, and about one-third of those amounts for the lunar take-off to orbit.Monomethylhydrazine is believed to be the main cause of the toxicity of Gyromitra genus mushrooms, especially the false morel (Gyromitra esculenta). In these cases, MMH is formed by the hydrolysis of gyromitrin.Monomethylhydrazine is considered to be a possible occupational carcinogen, and the occupational exposure limits to MMH are set at protective levels to account for the possible carcinogenicity.".
- Monomethylhydrazine iupacName "Methylhydrazine".
- Monomethylhydrazine thumbnail Monomethylhydrazine.png?width=300.
- Monomethylhydrazine wikiPageExternalLink eics0180.htm.
- Monomethylhydrazine wikiPageID "269794".
- Monomethylhydrazine wikiPageLength "6741".
- Monomethylhydrazine wikiPageOutDegree "37".
- Monomethylhydrazine wikiPageRevisionID "668358552".
- Monomethylhydrazine wikiPageWikiLink Aerozine_50.
- Monomethylhydrazine wikiPageWikiLink Apollo_Lunar_Module.
- Monomethylhydrazine wikiPageWikiLink Carbon.
- Monomethylhydrazine wikiPageWikiLink Carcinogen.
- Monomethylhydrazine wikiPageWikiLink Category:Hydrazines.
- Monomethylhydrazine wikiPageWikiLink Category:Monoamine_oxidase_inhibitors.
- Monomethylhydrazine wikiPageWikiLink Category:Mycotoxins.
- Monomethylhydrazine wikiPageWikiLink Category:Rocket_fuels.
- Monomethylhydrazine wikiPageWikiLink Chemical_formula.
- Monomethylhydrazine wikiPageWikiLink Dinitrogen_tetroxide.
- Monomethylhydrazine wikiPageWikiLink Ethylamine.
- Monomethylhydrazine wikiPageWikiLink Ethylenediamine.
- Monomethylhydrazine wikiPageWikiLink European_Space_Agency.
- Monomethylhydrazine wikiPageWikiLink Gyromitra.
- Monomethylhydrazine wikiPageWikiLink Gyromitra_esculenta.
- Monomethylhydrazine wikiPageWikiLink Gyromitrin.
- Monomethylhydrazine wikiPageWikiLink Hydrazine.
- Monomethylhydrazine wikiPageWikiLink Hydrogen.
- Monomethylhydrazine wikiPageWikiLink Hydrolysis.
- Monomethylhydrazine wikiPageWikiLink Hypergolic_propellant.
- Monomethylhydrazine wikiPageWikiLink Liquid-propellant_rocket.
- Monomethylhydrazine wikiPageWikiLink Methylamine.
- Monomethylhydrazine wikiPageWikiLink Mushroom.
- Monomethylhydrazine wikiPageWikiLink NASA.
- Monomethylhydrazine wikiPageWikiLink Nitric_acid.
- Monomethylhydrazine wikiPageWikiLink Nitrogen.
- Monomethylhydrazine wikiPageWikiLink Red_fuming_nitric_acid.
- Monomethylhydrazine wikiPageWikiLink Rocket.
- Monomethylhydrazine wikiPageWikiLink Rocket_propellant.
- Monomethylhydrazine wikiPageWikiLink Space_Shuttle.
- Monomethylhydrazine wikiPageWikiLink Space_Shuttle_Orbital_Maneuvering_System.
- Monomethylhydrazine wikiPageWikiLink Toxicity.
- Monomethylhydrazine wikiPageWikiLink Unsymmetrical_dimethylhydrazine.
- Monomethylhydrazine wikiPageWikiLink Volatility_(chemistry).
- Monomethylhydrazine wikiPageWikiLinkText "MMH (MonoMethylHydrazine)".
- Monomethylhydrazine wikiPageWikiLinkText "MMH".
- Monomethylhydrazine wikiPageWikiLinkText "Methyl hydrazine".
- Monomethylhydrazine wikiPageWikiLinkText "Monomethylhydrazine".
- Monomethylhydrazine wikiPageWikiLinkText "methylhydrazine".
- Monomethylhydrazine wikiPageWikiLinkText "mono-methyl hydrazine".
- Monomethylhydrazine wikiPageWikiLinkText "monomethyl hydrazine (MMH)".
- Monomethylhydrazine wikiPageWikiLinkText "monomethyl hydrazine".
- Monomethylhydrazine wikiPageWikiLinkText "monomethylhydrazine".
- Monomethylhydrazine imagefile "Methylhydrazine-3D-balls.png".
- Monomethylhydrazine imagefile "Monomethylhydrazine.png".
- Monomethylhydrazine imagename "Ball and stick model of monomethylhydrazine".
- Monomethylhydrazine imagename "Skeletal formula of monomethylhydrazine with some implicit hydrogens shown".
- Monomethylhydrazine imagesize "100".
- Monomethylhydrazine iupacname "Methylhydrazine".
- Monomethylhydrazine verifiedrevid "412518770".
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- Monomethylhydrazine wikiPageUsesTemplate Template:Hydrazines.
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- Monomethylhydrazine wikiPageUsesTemplate 25.
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- Monomethylhydrazine subject Category:Hydrazines.
- Monomethylhydrazine subject Category:Monoamine_oxidase_inhibitors.
- Monomethylhydrazine subject Category:Mycotoxins.
- Monomethylhydrazine subject Category:Rocket_fuels.
- Monomethylhydrazine hypernym Chemical.
- Monomethylhydrazine type ChemicalCompound.
- Monomethylhydrazine type ChemicalSubstance.