2-プロピン

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Danger

• 危険有害性情報

  H220：極めて可燃性/引火性の高いガス

  H280：加圧ガス；熱すると爆発のおそれ

  H335：呼吸器への刺激のおそれ

• 注意書き

  P210：熱/火花/裸火/高温のもののような着火源から遠ざ けること。－禁煙。

  P410+P403：日光から遮断し、換気の良い場所で保管するこ と。

2-プロピン 価格

2-プロピン 化学特性,用途語,生産方法

• 外観

  無色～ほとんど無色透明液体

• 解説

  プロピン，アセチレン系炭化水素の一つ。異性体のプロパジエンとともに溶接の燃料などに用いられる。炭化マグネシウムMg2C3の加水分解，あるいは金属アセチリドとヨウ化メチルから得られる．無色の気体．融点－102.7 ℃，沸点－23.2 ℃．d^-500.7026．d^-401.3863．エタノールに易溶，有機溶媒に可溶，水にかなり可溶．金属と不溶性のアセチリドを生成する．容易にアレンに異性化する．

• 用途

  合成中間体

• 化学的特性

  Propyne,C3H4, is a colorless, highly flammable, and explosive gas. Sources of propyne emissions to the atmosphere include automobile and turbine exhaust, biomass and polymer combustion, petroleum manufacturing, and tobacco smoke.

• 使用

  Propyne is produced by thermal or catalytic pyrolysis of propene. Like acetylene, propyne is used as a welding torch fuel, as a specialty fuel, and chemical intermediate.

• 一般的な説明

  A colorless liquefied gas with a sweet odor. Mp: -104°C, bp: -23.1°C. Insoluble in water, soluble in ethanol, chloroform and benzene. Moderately toxic by inhalation. Used as a speciality fuel. Denser than air. Vapors may ignite at distant sources of ignition and flash back.

• 空気と水の反応

  Highly flammable. PEROXIDE FORMING WHICH LEADS TO EXPLOSIONS

• 反応プロフィール

  Propyne is highly flammable. The liquid material in cylinders contains about 30% propadiene. Detonation may occur at 95° C [MCA Case History No. 632]. Reacts exothermically with many oxidizing agents and with some reducing agents as well. May react with silver, copper, and mercury salts in aqueous solution to give explosive acetylides. Incompatible with brass that contains more than 65% copper, with other copper-containing alloys, with Monel metal, with neoprene, polyethylene, and, to a lesser extent, with Teflon. May enflame in air in the presence of Co, Hg, Hg salts, K, Ag, Ag salts, RbH, CsH, halogens, HNO3, NaH. Can decompose explosively when compressed to 4.5 to 5.6 atmospheres. Moderate explosion hazard when exposed to heat or flame or by spontaneous chemical reaction. Has been known to decompose explosively at high pressures and moderate temperatures in the absence of air.

• 危険性

  Flammable, dangerous fire risk. Toxic by inhalation. Central nervous system impairment.

• 健康ハザード

  At high concentrations methyl acetylene causes narcosis in animals, and it is expected that severe exposure will produce the same effect in humans.

• 安全性プロファイル

  Ths compound is a simple anesthetic and in high concentration is an asphyxiant. Mutation data reported. Dangerous fire hazard when exposed to heat or flame; can react vigorously with oxibzing materials. Explosive in the form of vapor when exposed to heat or flame. Localized heating of liquid-containing cylinders to 95°C may cause an explosion. Product of reaction with silver nitrate ignites at 150°C. A commercial mixture containing 30% propyne in MAPP gas is similar to ethylene in potential hazards and handling requirements. To fight fire, stop flow of gas. When heated to decomposition it emits acrid smoke and irritating fumes. See also ACETYLENE COMPOUNDS.

• 職業ばく露

  This material may be used as a liquid rocket propellant, in admixture with propadiene as an industrial cutting fuel.

• 環境運命予測

  Chemical/Physical. When passed through a cold solution containing hydrobromite ions, 1-bromo-1-propyne was formed (Hatch and Kidwell, 1954).
  Combustion products include carbon monoxide, carbon dioxide, and water vapor.

• 輸送方法

  UN3161 Liquefied gas, flammable, n.o.s., Hazard Class: 2.1; Labels: 2.1-Flammable gas, Technical Name Required. Cylinders must be transported in a secure upright position, in a well-ventilated truck. Protect cylinder and labels from physical damage. The owner of the compressed gas cylinder is the only entity allowed by federal law (49CFR) to transport and refill them. It is a violation of transportation regulations to refill compressed gas cylinders without the express written permission of the owner.

• 純化方法

  Purify it by preparative gas chromatography. [Beilstein 1 H 246.]

• 不和合性

  Forms explosive gas mixture with air. The liquid material in cylinders contains about 30% propadiene. Detonation may occur at 95C. May form explosive peroxides. Can decompose explosively on heating and @ 4.5
  5.6 atmospheres of pressure. Strong oxidizers may cause fire and explosions. Forms shock sensitive compounds with copper, magnesium, silver and their alloys. Copper or copper alloys containing more than 67% copper should not be used in handling equipment. Attacks some plastics, rubber and coatings.

• 廃棄物の処理

  Return refillable compressed gas cylinders to supplier. Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

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