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propadiene

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propadiene
propadiene, n. Chem. (prəʊpəˈdaɪiːn) [f. propane n. + di-2 + -ene.] A gaseous unsaturated hydrocarbon, CH2:C:CH2 , isomeric with propyne. Also called allene.1926 Chem. Abstr. XX. 3685 Propadiene was prepd. by dropping the dibromopropylene into a flask contg. Zn dust and EtOH and heating. 1939 Jrnl. ... Oxford English Dictionary
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Propadiene
Propadiene () or allene () is the organic compound with the formula . equilibrium with methylacetylene Allene exists in equilibrium with methylacetylene (propyne) and the mixture is sometimes called MAPD for methylacetylene-propadiene wikipedia.org
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allylene
allylene Chem. (ˈælɪliːn) [f. allyl + -ene.] A divalent hydro-carbon radical, C3H4, isomeric with acetylene; consisting of allyl minus one atom of hydrogen. Also called propine.1863 Watts Dict. Chem. I. 112 Pure allylene, a colourless gas, having an unpleasant odour, burning with a smoky flame. 1869... Oxford English Dictionary
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Thomas J. Kealy
His published research includes the addition reaction of phenols with ethylene, the chemistry of allene (propadiene, ), the synthesis of diazaquinones, wikipedia.org
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Allenes
The parent compound of this class is propadiene (), which is itself also called allene. Synthesis Although allenes often require specialized syntheses, the parent allene, propadiene is produced industrially on a large scale as an equilibrium wikipedia.org
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allene
allene synonym of allylene. ______________________________ [ad. Fr. allène (coined by L. Henry 1875, in Bull. Soc. Chim. Paris XXIII. 350): see allyl n., -ene.] 1. = *propadiene n.1877 H. Watts Fownes' Man. Elem. Chem. (ed. 12) II. 63, β Allylene, or allene, CH2{b2}CH{b2}CH2 [sic], is formed..by the... Oxford English Dictionary
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Methylacetylene-propadiene gas
Methylacetylene-propadiene (MPS) gas is a type of fuel gas used in oxy-fuel welding and cutting torches, comprising a mixture of several gases. MPS gases An MPS gas is a mixture of two or more of propane, butane, butadiene, methylacetylene (propyne, CH3C≡CH) and propadiene (CH2=C=CH2). wikipedia.org
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Carbohydride
When Ca2LiC3H is heated with ammonium chloride, the gas C3H4 (methylacetylene-propadiene) is produced. wikipedia.org
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بروباديين
هوامش وذلك اختصاراً من methylacetylene-propadiene مراجع المواد الكيميائية مع معرفات مركبة متعددة ألكاديينات كومولينات وقود الغاز wikipedia.org
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Tricarbon
Tricarbon (systematically named 1λ2,3λ2-propadiene and catena-tricarbon) is an inorganic compound with the chemical formula (also written [C(μ-C)C] or In appropriate contexts, tricarbon can be viewed as propadiene with four hydrogen atoms removed, or as propane with eight hydrogen atoms removed; and as wikipedia.org
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C3H4
molecular formula C3H4 (molar mass: 40.06 g/mol, exact mass: 40.0313 u) may refer to: Cyclopropene, a cyclic alkene Methylacetylene, a common alkyne Propadiene wikipedia.org
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碳原子上同时连接两个碳碳双键或 C=CH—OH 时不稳定的原因是什么？
C原子上同时连接2个碳碳双键，这种物质还是存在的，而且这类物质叫做积累二烯烃或联烯，对应的英文为allenes，最简单是丙二烯\text{H}_{2}\text{C}=\text{C}=\text{CH}_{2}（propadiene）。 zhihu
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MAPP gas
The name comes from the original chemical composition, methylacetylene-propadiene propane. "MAPP gas" is also widely used as a generic name for UN 1060 stabilised methylacetylene-propadiene (unstabilised methylacetylene-propadiene is known as wikipedia.org
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قائمة عمليات التصنيع
Electroslag ذرة الهيدروجين Plasma-MIG (لحام قوسي بالمعدن والغاز) Impregnated tape لحام قوسي بالمعدن والغاز لحام بالغاز Oxy-acetylene gas Methylacetylene propadiene wikipedia.org
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Dimethyl ether
Dimethyl ether is also a component of certain high temperature "Map-Pro" blowtorch gas blends, supplanting the use of methyl acetylene and propadiene mixtures wikipedia.org
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